INTERDIGITAL COMMUNICATIONS CORP
8-A12B, 1997-01-02
PATENT OWNERS & LESSORS
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                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                   ----------

                                    FORM 8-A

                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                    PURSUANT TO SECTION 12(b) OR 12(g) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                                   ----------

                     INTERDIGITAL COMMUNICATIONS CORPORATION
               (Exact name of registrant as specified in charter)


             Pennsylvania                               23-1882087
(State of incorporation or organization)    (I.R.S. Employer Identification no.)
                    
         781 Third Avenue
        King of Prussia, PA                            19406-1409
(Address of Principal Executive Offices)               (Zip Code)



If this Form relates to the registration of a
class of debt securities and is effective upon 
filing pursuant to General Instruction 
A(c)(1) please check the following box. / /



 If this Form relates to the registration of a 
class of debt securities and is to become
effective simultaneously with the
effectiveness of a concurrent registration
statement under the Securities Act of 1933
pursuant to General Instruction A(c)(2)
please check the following box. / /


Securities to be registered pursuant to Section 12(b) of the Act:


    Title of Each Class                          Name of Each Exchange on Which
    to be so Registered                          Each Class is to be Registered
    -------------------                          ------------------------------
Series B Junior Participating                         American Stock Exchange
   Preferred Stock Rights

Securities to be registered pursuant to Section 12(g) of the Act:

                                      None
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                                  Page 1 of 55

<PAGE>

Item 1.  Description of Registrant's Securities to be Registered

         On December 13, 1996, the Board of Directors of InterDigital
Communications Corporation, a Pennsylvania corporation (the "Company"), declared
a distribution of one Right (as defined below) for each outstanding share of
Common Stock, par value $.01 per share (the "Company Common Stock") to
shareholders of record at the close of business on January 3, 1997 (the "Record
Date") and for each share of Company Common Stock issued (including shares
distributed from Treasury) by the Company thereafter and prior to the
Distribution Date. Each Right entitles the registered holder, subject to the
terms of the Rights Agreement (as defined below), to purchase from the Company
one one-thousandth of a share (a "Unit") of Series B Junior Participating
Preferred Stock (the "Preferred Stock"), at a Purchase Price of $45.00 per Unit,
subject to adjustment (the "Right"). The Purchase Price is payable in cash or by
certified or bank check or money order payable to the order of the Company. The
description and terms of the Rights are set forth in a Rights Agreement between
the Company and American Stock Transfer and Trust Company, as Rights Agent (the
"Rights Agreement").

         Initially, the Rights will attach to all certificates representing
shares of outstanding Company Common Stock, and no separate Rights Certificates
will be distributed. The Rights will separate from the Company Common Stock and
the "Distribution Date" will occur upon (i) the earlier of (A) 10 business days
following the date of a public announcement (the date of such announcement being
the "Stock Acquisition Date") that a person or group of affiliated or associated
persons (other than the Company, any subsidiary of the Company or any employee
benefit plan of the Company or such subsidiary) (an "Acquiring Person") has
acquired, obtained the right to acquire, or otherwise obtained beneficial
ownership of 15% or more of the then outstanding shares of Company Common Stock,
and (B) 10 business days following the commencement of a tender offer or
exchange offer that would result in a person or group beneficially owning 15% or
more of the then outstanding shares of Company Common Stock, or (ii) such later
date as may be determined by action of a majority of the Independent Directors
of the Board prior to the occurrence of either event specified in (i) above. The
determination of beneficial ownership under the Rights Agreement generally
excludes options to purchase shares and shares acquired from the Company
pursuant to stock-based plans for employees and directors. Until the
Distribution Date, (x) the Rights will be evidenced by Company Common Stock
certificates and will be transferred with and only with such Company Common
Stock certificates, (y) new Company Common Stock certificates issued after the
Record Date (also including shares distributed from Treasury) will contain a
notation incorporating the Rights Agreement by reference, and (z) the surrender
for transfer of any certificates representing outstanding Company Common Stock
will also constitute the transfer of the Rights associated with the Company
Common Stock represented by such certificates.

         The Rights are not exercisable until the Distribution Date and will
expire at the close of business on the tenth anniversary of the Rights Agreement
unless earlier redeemed by the Company as described below.

         As soon as practicable after the Distribution Date, Rights Certificates
will be mailed to holders of record of Company Common Stock as of the close of
business on the Distribution Date and, thereafter, the separate Rights
Certificates alone will represent the Rights.

         In the event that (i) the Company is the surviving corporation in a
merger with an Acquiring Person and shares of Company Common Stock shall remain
outstanding, (ii) a Person becomes the beneficial owner of 15% or more of the
then outstanding shares of Company Common Stock, (iii) an

                                  Page 2 of 55

<PAGE>

Acquiring Person engages in one or more "self-dealing" transactions as set forth
in the Rights Agreement, or (iv) during such time as there is an Acquiring
Person, an event occurs which results in such Acquiring Person's ownership
interest in the Company Common Stock being increased by more than 1% (e.g., by
means of a reverse stock split or recapitalization), then, in each such case,
each holder of a Right will thereafter have the right to receive, upon exercise,
Units of Preferred Stock (or, in certain circumstances, Company Common Stock,
cash, property or other securities of the Company) having a current market value
equal to two times the exercise price of the Right. The exercise price is the
Purchase Price multiplied by the number of Units of Preferred Stock issuable
upon exercise of a Right prior to the events described in this paragraph.
Notwithstanding any of the foregoing, following the occurrence of any of the
events set forth in this paragraph, all Rights that are, or (under certain
circumstances specified in the Rights Agreement) were, beneficially owned by any
Acquiring Person will be null and void.

         In the event that, at any time following the Stock Acquisition Date,
(i) the Company is acquired in a merger or other business combination
transaction and the Company is not the surviving corporation (other than a
merger described in the preceding paragraph), (ii) any Person consolidates or
merges with the Company and all or part of the Company Common Stock is converted
or exchanged for securities, cash or property of any other Person, or (iii) 50%
or more of the Company's assets or earning power is sold or transferred, each
holder of a Right (except Rights which previously have been voided as described
above) shall thereafter have the right to receive, upon exercise, common stock
of the Acquiring Person having a current market value equal to two times the
exercise price of the Right.

         The Purchase Price payable, and the number of Units of Preferred Stock
issuable, upon exercise of the Rights are subject to adjustment from time to
time to prevent dilution (i) in the event of a stock dividend on, or a
subdivision, combination or reclassification of, the Preferred Stock, (ii) if
holders of the Preferred Stock are granted certain rights or warrants to
subscribe for Preferred Stock or convertible securities at less than the current
market price of the Preferred Stock, or (iii) upon the distribution to the
holders of the Preferred Stock of evidences of indebtedness, cash or assets
(excluding regular cash dividends, if any) or of subscription rights or warrants
(other than those referred to above).

         With certain exceptions, no adjustment in the Purchase Price will be
required until cumulative adjustments amount to at least 1% of the Purchase
Price. The Company is not required to issue fractional Units. In lieu thereof,
an adjustment in cash may be made based on the market price of the Preferred
Stock prior to the date of exercise.

         A majority of the Independent Directors may redeem the Rights in whole,
but not in part, until (i) ten business days following the Stock Acquisition
Date, or (ii) such later date as they shall determine, at a price of $.01 per
Right (subject to adjustment in certain events) (the "Redemption Price"),
payable, at the election of such majority of the Independent Directors, in cash
or shares of Company Common Stock. Immediately upon the action of a majority of
the Independent Directors ordering the redemption of the Rights, the Rights will
terminate and the only right of the holders of Rights will be to receive the
Redemption Price.

         Until a Right is exercised, the holder thereof, as such, will have no
rights as a shareholder of the Company, including, without limitation, the right
to vote or to receive dividends. While the distribution of the Rights will not
be taxable to shareholders or to the Company, shareholders may, depending upon
the circumstances, recognize taxable income in the event that the Rights become
exercisable for Units of Preferred Stock (or other consideration).

                                  Page 3 of 55

<PAGE>

         Any of the provisions of the Rights Agreement may be amended without
the approval of the holders of Company Common Stock at any time prior to the
Distribution Date. After the Distribution Date, the provisions of the Rights
Agreement may be amended in order to cure any ambiguity, defect or
inconsistency, to make changes which do not adversely affect the interests of
holders of Rights (excluding the interests of any Acquiring Person), or to
shorten or lengthen any time period under the Rights Agreement; provided,
however, that no amendment to adjust the time period governing redemption shall
be made at such time as the Rights are not redeemable.

         The Units of Preferred Stock that may be acquired upon exercise of the
Rights will be nonredeemable and subordinate to any other shares of preferred
stock that may be issued by the Company.

         Each Unit of Preferred Stock will be entitled to dividends at the same
rate per share as dividends declared on the Company Common Stock and shall be
entitled to payment of dividends to the extent dividends are declared on the
Company Common Stock. In the event of liquidation, the holder of a Unit of
Preferred Stock will receive the per share amount paid in respect of a share of
Company Common Stock.

         In the event of any merger, consolidation or other transaction in which
shares of Company Common Stock are exchanged, each Unit of Preferred Stock will
be entitled to receive the per share amount paid in respect of each share of
Company Common Stock. Each Unit of Preferred Stock will have one vote, voting
together with the Company Common Stock. The rights of holders of the Preferred
Stock to dividends, liquidation and voting, and in the event of mergers and
consolidations, are protected by customary anti-dilution provisions.

         Because of the nature of the Preferred Stock's dividend, liquidation
and voting rights, the economic value of one Unit of Preferred Stock that may be
acquired upon the exercise of each Right should approximate the economic value
of one share of the Common Stock.

         The form of Rights Agreement between the Company and the Rights Agent
specifying the term of the Rights, which includes as (i) Exhibit A, Form of
Rights Certificate, (ii) Exhibit B, Form of Certificate of Designation - Series
B Junior Participating Preferred Stock, and (iii) Exhibit C, Form of Summary of
Rights, is attached hereto as Exhibit 1 and is incorporated herein by reference.
The foregoing description of the Rights does not purport to be complete and is
qualified in its entirety by reference to such Exhibit.

                                  Page 4 of 55

<PAGE>

Item 2.  Exhibits.

         1.       Rights Agreement, dated as of December 31, 1996, between
                  InterDigital Communications Corporation and American Stock
                  Transfer and Trust Company, including Form of Rights
                  Certificate (Exhibit A), Form of Certificate of Designation -
                  Series B Junior Participating Preferred Stock (Exhibit B), and
                  Form of Summary of Rights (Exhibit C).

         2.       Form of legend on certificates representing shares of Common 
                  Stock regarding Preferred Stock Purchase Rights.
























                                  Page 5 of 55

<PAGE>

                                    SIGNATURE

         Pursuant to the requirements of Section 12 of the Securities Exchange
Act of 1934, the registrant has duly caused this registration statement to be
signed on its behalf by the undersigned, thereto duly authorized.

                                INTERDIGITAL COMMUNICATIONS CORPORATION


                                By:       /s/ WILLIAM A. DOYLE
                                          -----------------------------
                                          William A. Doyle
                                          President


Date:    December 31, 1996










                                  Page 6 of 55

<PAGE>
                                  EXHIBIT INDEX


Exhibit No.       Description

         1        Rights Agreement, dated as of December 31, 1996, between
                  InterDigital Communications Corporation and American Stock
                  Transfer and Trust Company, including Form of Rights
                  Certificate (Exhibit A), Form of Certificate of Designation -
                  Series B Junior Participating Preferred Stock (Exhibit B), and
                  Form of Summary of Rights (Exhibit C).

         2        Form of legend on certificates representing shares of Common
                  Stock regarding Preferred Stock Purchase Rights.


                                  Page 7 of 55

<PAGE>


                                                                      EXHIBIT 1

                                RIGHTS AGREEMENT

         RIGHTS AGREEMENT dated as of December 31, 1996 (the "Agreement"),
between INTERDIGITAL COMMUNICATIONS CORPORATION, a Pennsylvania corporation (the
"Company") and AMERICAN STOCK TRANSFER AND TRUST COMPANY, a New York corporation
(the "Rights Agent").

         WHEREAS, effective December 13, 1996 (the "Rights Dividend Declaration
Date"), the Board of Directors of the Company authorized and declared a
distribution of one right for each share of common stock, par value $.01 per
share, of the Company (the "Company Common Stock") outstanding at the Close of
Business (as hereinafter defined) on January 3, 1997 (the "Record Date"), and
has authorized the issuance of one right (as such number may hereinafter be
adjusted pursuant hereto) for each share of Company Common Stock issued between
the Record Date (whether originally issued or delivered from the Company's
treasury) and, except as otherwise provided in Section 22, the Distribution Date
(as hereinafter defined), each right issued in respect of a share of Company
Common Stock ("Right") initially representing the right to purchase, upon the
terms and subject to the conditions hereinafter set forth, one Unit of Series B
Junior Participating Preferred Stock;

         NOW, THEREFORE, in consideration of the premises and the mutual
agreements herein set forth, the parties hereby agree as follows:

         SECTION 1. Certain Definitions. For purposes of this Agreement, the
following terms have the meanings indicated:

               (a) "Acquiring Person" means any Person (other than the Company,
any Subsidiary of the Company, any employee benefit plan maintained by the
Company or any of its Subsidiaries or any trustee or fiduciary with respect to
such plan acting in such capacity) that shall be the Beneficial Owner of 15% or
more of the shares of Common Stock then outstanding; provided, however, that the
term "Acquiring Person" shall not include an Exempt Person. Notwithstanding the
foregoing, if a majority of the Independent Directors determines in good faith
that a Person who would otherwise be an Acquiring Person has become such
inadvertently (including, without limitation, because (A) such Person was
unaware that he or it is the Beneficial Owner of a percentage of Common Stock
that would otherwise cause such Person to be an Acquiring Person, or (B) such
Person was aware of the percentage of securities of which he or it was the
Beneficial Owner but had no actual knowledge of the consequences of being the
Beneficial Owner of such percentage under this Agreement) and without any
intention of changing or influencing control of the Company, and if such Person,
as promptly as practicable after being advised of such determination, divests
himself or itself of a sufficient number of shares of Common Stock so that such
Person would no longer be the Beneficial Owner of that percentage of securities
which would otherwise result in him or it being an Acquiring Person, then such
Person shall not be deemed to be or to have become an Acquiring Person for any
purposes of this Agreement.

               (b) "Affiliate" and "Associate" have the respective meanings
ascribed to such terms in Rule 12b-2 of the General Rules and Regulations under
the Securities Exchange Act of 1934, as amended (the "Exchange Act"), as in
effect on the date hereof.


                                  Page 8 of 55

<PAGE>

               (c) A Person shall be deemed the "Beneficial Owner" of, and shall
be deemed to "beneficially own," any securities:

               (i) of which such Person or any of such Person's Affiliates or
Associates is considered to be a "beneficial owner" under Rule 13d-3 of the
General Rules and Regulations under the Exchange Act (the "Exchange Act
Regulations") as in effect on the date hereof; provided, however, that a Person
shall not be deemed the "Beneficial Owner" of, or to "beneficially own", any
securities under this subparagraph (i) as a result of an agreement, arrangement
or understanding to vote such securities if such agreement, arrangement or
understanding (A) arises solely from a revocable proxy given in response to a
proxy or consent solicitation made pursuant to, and in accordance with, the
applicable provisions of the Exchange Act and the Exchange Act Regulations, and
(B) is not reportable by such Person on Schedule 13D under the Exchange Act (or
any comparable or successor report);

               (ii) which are beneficially owned, directly or indirectly, by any
other Person (or any Affiliate or Associate of such other Person) with which
such Person (or any of such Person's Affiliates or Associates) has any
agreement, arrangement or understanding (whether or not in writing), for the
purpose of acquiring, holding, voting (except pursuant to a revocable proxy as
described in the proviso to subparagraph (i) of this paragraph (c) of Section 1)
or disposing of such securities; or

               (iii) which such Person or any of such Person's Affiliates or
Associates, directly or indirectly, has the right to acquire (whether such right
is exercisable immediately or only after the passage of time or upon the
satisfaction of conditions) pursuant to any agreement, arrangement or
understanding (whether or not in writing) or upon the exercise of conversion
rights, exchange rights, rights, warrants or options, or otherwise; provided,
however, that under this paragraph (c) a Person shall not be deemed the
"Beneficial Owner" of, or to "beneficially own", (A) securities tendered
pursuant to a tender or exchange offer made in accordance with Exchange Act
Regulations by such Person or any of such Person's Affiliates or Associates
until such tendered securities are accepted for purchase or exchange, (B)
securities that may be issued upon exercise of Rights at any time prior to the
occurrence of a Triggering Event, or (C) securities that may be issued upon
exercise of Rights from and after the occurrence of a Triggering Event, which
Rights were acquired by such Person or any of such Person's Affiliates or
Associates prior to the Distribution Date or pursuant to Section 3(c) or Section
22 (the "Original Rights") or pursuant to Section 11(i) in connection with an
adjustment made with respect to any Original Rights.

Notwithstanding the foregoing, an employee, officer or director of the Company
shall not be deemed the "Beneficial Owner" of, or to "beneficially own," any
securities which such Person has the right to acquire from the Company (whether
such right is exercisable immediately or only after the passage of time or upon
the satisfaction of conditions) pursuant to any stock option plan or other
employee benefit plan (the "Underlying Securities"; the right to acquire the
Underlying Securities shall hereinafter be referred to as a "Company Option");
provided that such Person has no intention of changing or influencing control of
the Company at the time of the acquisition of the Company Option or at any time
during which such Person has the right to exercise the Company Option; provided,
further, that if, notwithstanding the foregoing proviso, a Person would be
deemed to be an "Acquiring Person" and such Person thereafter becomes the
beneficial owner of one or more additional shares of Company Common Stock other
than pursuant to the exercise of a Company Option, such Person will immediately
and thereafter be deemed the "Beneficial Owner" of, and to "beneficially own,"
the Underlying Securities under all Company Options owned by such Person. An
employee, officer, or director of the Company exercising a Company Option shall
not be

                                  Page 9 of 55

<PAGE>

deemed the "Beneficial Owner" of, or to "beneficially own," the Underlying
Securities; provided that such Person has no intention of changing or
influencing control of the Company at the time of the acquisition of the
Underlying Securities; provided, further, that if, notwithstanding the foregoing
proviso, a Person would be deemed to be an "Acquiring Person" and such Person
thereafter becomes the beneficial owner of one or more additional shares of
Company Common Stock other than pursuant to the exercise of a Company Option,
such Person will immediately and thereafter be deemed the "Beneficial Owner" of,
and to "beneficially own," the Underlying Securities. Any Person other than an
employee, officer or director of the Company (including a former employee,
officer or director of the Company) exercising a Company Option will not be
deemed the "Beneficial Owner" of, or to "beneficially own," the Underlying
Securities; provided that such Person has no intention of changing or
influencing control of the Company at the time of the acquisition of the
Underlying Securities; and provided, further, that such Person acquires such
Underlying Securities with the intention of effecting their resale (within five
(5) days of so acquiring them) to a Person other than an Affiliate or an
Associate of such Person or to another Person which would be an Acquiring Person
(or an Affiliate or an Associate thereof), and such Person actually disposes of
such Underlying Securities within such five-day period.

               (d) "Business Day" means any day other than a Saturday, Sunday or
a day on which banking institutions in New York City are authorized or obligated
by law or executive order to be closed.

               (e) "Close of Business" on any given date means 5:00 P.M., New
York City time, on such date; provided, however, that if such date is not a
Business Day it shall mean 5:00 P.M., New York City time, on the next succeeding
Business Day.

               (f) "Common Stock" of any Person other than the Company means the
capital stock of such Person with the greatest voting power, or, if such Person
shall have no capital stock, the equity securities or other equity interest
having power to control or direct the management of such Person.

               (g) "Company Common Stock" has the meaning set forth in the
Recital.

               (h) "Company Option" has the meaning set forth in Section 1(c).

               (i) "Distribution Date" has the meaning set forth in Section
3(a).

               (j) "Exempt Person" means:

                   (i) the Company, any Subsidiary of the Company, any employee
benefit plan or employee stock plan of the Company or of any Subsidiary of the
Company, or any person or entity organized, appointed, established or holding
Company Common Stock for or pursuant to the terms of any such plan; and

                   (ii) any Person who would otherwise become an Acquiring 
Person solely by virtue of a reduction in the number of outstanding shares of
Company Common Stock; provided, however, that such Person shall not be an Exempt
Person if, subsequent to such reduction, such Person shall become the Beneficial
Owner of any additional shares of Company Common Stock.


                                  Page 10 of 55

<PAGE>

               (k) "Expiration Date" has the meaning set forth in Section 7(a).

               (l) "Independent Director" means a member of the Board of
Directors of the Company who is not an officer or employee of the Company, who
is not an Acquiring Person or an Affiliate or Associate of an Acquiring Person
or a representative or nominee of an Acquiring Person or of any such Affiliate
or Associate, and who either (i) was a member of the Board of Directors of the
Company prior to the date hereof or (ii) subsequently became a director of the
Company and whose election or nomination for election is approved or recommended
by a vote of a majority of the Board of Directors of the Company, which majority
includes a majority of the Independent Directors then on the Board of Directors.

               (m) "Person" means any individual, partnership, firm,
corporation, association, trust, unincorporated organization or other entity, as
well as any syndicate or group deemed to be a person under Section 14(d)(2) of
the Exchange Act.

               (n) "Preferred Stock" means the Series B Junior Participating
Preferred Stock of the Company having the voting powers, designation,
preferences and relative, participating, optional or other special rights and
qualifications, limitations and restrictions described in the Certificate of
Designation set forth as Exhibit B.

               (o) "Purchase Price" has the meaning set forth in Section 7(b).

               (p) "Record Date" has the meaning set forth in the Recital.

               (q) "Right" has the meaning set forth in the Recital.

               (r) "Rights Certificate" has the meaning set forth in Section
3(a).

               (s) "Rights Dividend Declaration Date" has the meaning set forth
in the Recital.

               (t) "Section 11(a)(ii) Event" means any event described in
Section 11(a)(ii)(A), (B) or (C).

               (u) "Section 13 Event" means any event described in clause (x),
(y) or (z) of Section 13(a).

               (v) "Stock Acquisition Date" means the first date of public
announcement (including, without limitation, the filing of any report pursuant
to Section 13(d) of the Exchange Act) by the Company or an Acquiring Person that
an Acquiring Person has become such.

               (w) "Subsidiary" means, with reference to any Person, any other
Person of which an amount of voting securities or equity interests sufficient to
elect at least a majority of the directors or equivalent governing body of such
other Person is beneficially owned, directly or indirectly, by such Person, or
otherwise controlled by such first-mentioned Person.

               (x) "Summary of Rights" has the meaning set forth in Section
3(b).

                                  Page 11 of 55

<PAGE>

               (y) "Triggering Event" means any Section 11(a)(ii) Event or any
Section 13 Event.

               (z) "Underlying Securities" has the meaning set forth in Section
1(c).

               (aa) "Unit" has the meaning set forth in Section 7(b).

         SECTION 2. Appointment of Rights Agent. The Company hereby appoints the
Rights Agent to act as agent for the Company in accordance with the terms and
conditions hereof, and the Rights Agent hereby accepts such appointment. With
the consent of the Rights Agent, the Company may from time to time appoint such
Co-Rights Agents as it may deem necessary or desirable.

         SECTION 3. Issue of Rights Certificates.

               (a) Until (i) the earlier of the Close of Business on the tenth
Business Day after the Stock Acquisition Date, and the Close of Business on the
tenth Business Day after the date that a tender or exchange offer by any Person
(other than the Company, any Subsidiary of the Company, any employee benefit
plan maintained by the Company or any of its Subsidiaries or any trustee or
fiduciary with respect to such plan acting in such capacity) is first published
or sent or given within the meaning of Rule 14d-4(a) of the Exchange Act
Regulations or any successor rule, if upon consummation thereof such Person
would be the Beneficial Owner of 15% or more of the shares of Company Common
Stock then outstanding, or (ii) such later date as may be determined by action
of a majority of the Independent Directors (such determination to be made prior
to either of the dates specified in (i) above) and of which the Company will
give the Rights Agent prompt written notice (such date above being the
"Distribution Date"), (x) the Rights will be evidenced (subject to the
provisions of paragraph (b) of this Section 3) by the certificates for shares of
Company Common Stock registered in the names of the holders of shares of Company
Common Stock as of and subsequent to the Record Date (which certificates for
shares of Company Common Stock shall be deemed also to be certificates for
Rights) and not by separate certificates, and (y) the Rights will be
transferable only in connection with the transfer of the underlying shares of
Company Common Stock (including a transfer to the Company). As soon as
practicable after the Distribution Date, the Rights Agent will send by
first-class, insured, postage prepaid mail, to each record holder of shares of
Company Common Stock as of the Close of Business on the Distribution Date, at
the address of such holder shown on the records of the Company, one or more
rights certificates, in substantially the form of Exhibit A (the "Rights
Certificates"), evidencing one Right for each share of Company Common Stock so
held, subject to adjustment as provided herein. In the event that an adjustment
in the number of Rights per share of Company Common Stock has been made pursuant
to Section 11(p), at the time of distribution of the Rights Certificates, the
Company may make the necessary and appropriate rounding adjustments (in
accordance with Section 14(a) hereof) so that Rights Certificates representing
only whole numbers of Rights are distributed and cash is paid in lieu of any
fractional Rights. As of and after the Distribution Date, the Rights will be
evidenced solely by such Rights Certificates.

               (b) As promptly as practicable following the Record Date, the
Company will send a copy of a Summary of Rights to Purchase Preferred Stock, in
a form which may be appended to certificates that evidence shares of Company
Common Stock, in substantially the form attached hereto as Exhibit C (the
"Summary of Rights"), by first-class, postage prepaid mail, to each record
holder of shares of Company Common Stock as of the Close of Business on the
Record Date, at the address of such holder shown on the records of the Company.

                                  Page 12 of 55

<PAGE>

               (c) Rights shall, without any further action, be issued in
respect of all shares of Company Common Stock that are issued (including any
shares of Company Common Stock held in treasury) after the Record Date (but
prior to the earlier of the Distribution Date and the Expiration Date).
Certificates evidencing such shares of Company Common Stock issued after the
Record Date shall bear the following legend:

         "This certificate also evidences and entitles the holder
         hereof to certain Rights as set forth in the Rights
         Agreement between InterDigital Communications
         Corporation (the "Company") and American Stock Transfer
         and Trust Company (the "Rights Agent") dated as of
         December 31, 1996 (the "Rights Agreement"), the terms of
         which are hereby incorporated herein by reference and a
         copy of which is on file at the principal office of the
         stock transfer administration office of the Rights
         Agent. Under certain circumstances; as set forth in the
         Rights Agreement, such Rights will be evidenced by
         separate certificates and will no longer be evidenced by
         this certificate. The Company will mail to the holder of
         this certificate a copy of the Rights Agreement, as in
         effect on the date of mailing, without charge promptly
         after receipt of a written request therefor. Under
         certain circumstances set forth in the Rights Agreement,
         Rights issued to, or held by, any Person who is, was or
         becomes an Acquiring Person or any Affiliate or
         Associate thereof (as such terms are defined in the
         Rights Agreement), whether currently held by or on
         behalf of such Person or by any subsequent holder, may
         become null and void."

With respect to certificates evidencing shares of Company Common Stock (whether
or not such certificates include the foregoing legend or have appended to them
the Summary of Rights), until the earlier of the Distribution Date and the
Expiration Date, the Rights associated with the shares of Company Common Stock
evidenced by such certificates shall be evidenced by such certificates alone and
registered holders of the shares of Company Common Stock shall also be the
registered holders of the associated Rights, and the transfer of any of such
certificates shall also constitute the transfer of the Rights associated with
the shares of Company Common Stock evidenced by such certificates.

         SECTION 4. Form of Rights Certificates.

               (a) The Rights Certificates (and the forms of election to
purchase, assignment and certificate to be printed on the reverse thereof) shall
each be substantially in the form set forth in Exhibit A hereto and may have
such marks of identification or designation and such legends, summaries or
endorsements printed thereon as the Company may deem appropriate and as are not
inconsistent with the provisions of this Agreement, or as may be required to
comply with any applicable law or any rule or regulation thereunder or with any
rule or regulation of any stock exchange on which the Rights may from time to
time be listed or to conform to usage. Subject to the provisions of Section 11
and Section 22, the Rights Certificates, whenever distributed, shall be dated as
of the Record Date and on their face shall entitle the holders thereof to
purchase such number of Units of Preferred Stock as shall be set forth therein
at the price set forth therein, but the amount and type of securities, cash or
other assets that may be acquired upon the exercise of each Right and the
Purchase Price thereof shall be subject to adjustment as provided herein.

                                  Page 13 of 55

<PAGE>

               (b) Any Rights Certificate issued pursuant hereto that represents
Rights beneficially owned by: (i) an Acquiring Person or any Associate or
Affiliate of an Acquiring Person, (ii) a transferee of an Acquiring Person (or
of any such Associate or Affiliate) that becomes a transferee after the
Acquiring Person becomes such, or (iii) a transferee of an Acquiring Person (or
of any such Associate or Affiliate) that becomes a transferee prior to or
concurrently with the Acquiring Person becoming such and that receives such
Rights pursuant to either (A) a transfer (whether or not for consideration) from
the Acquiring Person (or any such Associate or Affiliate) to holders of equity
interests in such Acquiring Person (or such Associate or Affiliate) or to any
Person with whom such Acquiring Person (or such Associate or Affiliate) has any
continuing agreement, arrangement or understanding regarding either the
transferred Rights, shares of Company Common Stock or the Company or (B) a
transfer that a majority of the Independent Directors has determined to be part
of a plan, arrangement or understanding that has as a primary purpose or effect
the avoidance of Section 7(e) shall, upon the written direction of a majority of
the Independent Directors, contain (to the extent feasible) the following
legend:

                  "The Rights represented by this Rights
         Certificate are or were beneficially owned by a Person
         who was or became an Acquiring Person or an Affiliate or
         Associate of an Acquiring Person (as such terms are
         defined in the Rights Agreement). Accordingly, this
         Rights Certificate and the Rights represented hereby may
         become null and void in the circumstances specified in
         Section 7(e) of such Agreement."

         SECTION 5. Countersignature and Registration.

               (a) Rights Certificates shall be executed on behalf of the
Company by its Chairman of the Board, the President or one of its Vice
Presidents, under its corporate seal reproduced thereon attested by its
Secretary or one of its Assistant Secretaries. The signature of any of these
officers on the Rights Certificates may be manual or facsimile. Rights
Certificates bearing the manual or facsimile signatures of the individuals who
were at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the countersignature of such Rights Certificates or did not
hold such offices at the date of such Rights Certificates. No Rights Certificate
shall be entitled to any benefit under this Agreement or be valid for any
purpose unless there appears on such Rights Certificate a countersignature duly
executed by the Rights Agent by manual signature of an authorized signatory, and
such countersignature upon any Rights Certificate shall be conclusive evidence,
and the only evidence, that such Rights Certificate has been duly countersigned
as required hereunder.

               (b) Following the Distribution Date, the Rights Agent will keep
or cause to be kept, at its office designated for surrender of Rights
Certificates upon exercise or transfer, books for registration and registration
of transfer of the Rights Certificates issued hereunder. Such books shall show
the name and address of each holder of the Rights Certificates, the number of
Rights evidenced on its face by each Rights Certificate and the date of each
Rights Certificate.

                                  Page 14 of 55

<PAGE>

         SECTION 6. Transfer, Split Up, Combination and Exchange of Rights
Certificates: Mutilated, Destroyed, Lost or Stolen Rights Certificates.

               (a) Subject to the provisions of Sections 4(b), 7(e) and 14, at
any time after the Close of Business on the Distribution Date, and at or prior
to the Close of Business on the Expiration Date, any Rights Certificate or
Certificates may be transferred, split up, combined or exchanged for another
Rights Certificate or Certificates, entitling the registered holder to purchase
a like number of Units of Preferred Stock (or, following a Triggering Event,
other securities, cash or other assets, as the case may be) as the Rights
Certificate or Certificates surrendered then entitled such holder to purchase.
Any registered holder desiring to transfer, split up, combine or exchange any
Rights Certificate or Certificates shall make such request in writing delivered
to the Rights Agent, and shall surrender the Rights Certificate or Certificates
to be transferred, split up, combined or exchanged at the office of the Rights
Agent designated for such purpose. Neither the Rights Agent nor the Company
shall be obligated to take any action whatsoever with respect to the transfer of
any such surrendered Rights Certificate until the registered holder shall have
completed and executed the certificate set forth in the form of assignment on
the reverse side of such Rights Certificate and shall have provided such
additional evidence of the identity of the Beneficial Owner (or former
Beneficial Owner) of the Rights represented by such Rights Certificate or
Affiliates or Associates thereof as the Company shall reasonably request;
whereupon the Rights Agent shall, subject to the provisions of Section 4(b),
Section 7(e) and Section 14, countersign and deliver to the Person entitled
thereto, a Rights Certificate or Rights Certificates, as the case may be, as so
requested. The Company may require payment of a sum sufficient to cover any tax
or governmental charge that may be imposed in connection with any transfer,
split up, combination or exchange of Rights Certificates.

               (b) If a Rights Certificate shall be mutilated, lost, stolen or
destroyed, upon request by the registered holder of the Rights represented
thereby and upon payment to the Company and the Rights Agent of all reasonable
expenses incident thereto, there shall be issued, in exchange for and upon
cancellation of the mutilated Rights Certificate, or in substitution for the
lost, stolen or destroyed Rights Certificate, a new Rights Certificate, in
substantially the form of the prior Rights Certificate, of like tenor and
evidencing the equivalent number of Rights, but, in the case of loss, theft or
destruction, only upon receipt of evidence satisfactory to the Company and the
Rights Agent of such loss, theft or destruction of such Rights Certificate and,
if requested by the Company or the Rights Agent, indemnity also satisfactory to
it.

         SECTION 7. Exercise of Rights; Purchase Price; Expiration Date of
Rights.

               (a) Prior to the earlier of (i) the Close of Business on the
tenth anniversary hereof (the "Final Expiration Date"), and (ii) the time at
which the Rights are redeemed as provided in Section 23 (the earlier of (i) and
(ii) being the "Expiration Date"), the registered holder of any Rights
Certificate may, subject to the provisions of Sections 7(e) and 9(c), exercise
the Rights evidenced thereby in whole or in part at any time after the
Distribution Date upon surrender of the Rights Certificate, with the form of
election to purchase and the certificate on the reverse side thereof duly
executed, to the Rights Agent at the office of the Rights Agent designated for
such purpose, together with payment of the aggregate Purchase Price (as
hereinafter defined) for the number of Units of Preferred Stock (or, following a
Triggering Event, other securities, cash or other assets, as the case may be)
for which such surrendered Rights are then exercisable.


                                  Page 15 of 55

<PAGE>

               (b) The purchase price for each one one-thousandth of a share
(each such one one-thousandth of a share being a "Unit") of Preferred Stock upon
exercise of Rights shall be $45.00, subject to adjustment from time to time as
provided in Sections 11 and 13(a) (such purchase price, as so adjusted, being
the "Purchase Price"), and shall be payable in accordance with paragraph (c)
below.

               (c) As promptly as practicable following the occurrence of the
Distribution Date, the Company shall deposit with a corporation in good standing
organized under the laws of the United States or any State of the United States,
which is authorized under such laws to exercise corporate trust or stock
transfer powers and is subject to supervision or examination by federal or state
authority (such institution being the "Depositary Agent") certificates
evidencing the shares of Preferred Stock that may be acquired upon exercise of
the Rights and shall cause such Depositary Agent to enter into an agreement
pursuant to which the Depositary Agent shall issue receipts evidencing interests
in the shares of Preferred Stock so deposited. Upon receipt of a Rights
Certificate evidencing exercisable Rights, with the form of election to purchase
and the certificate duly executed, accompanied by payment, with respect to each
Right so exercised, of the Purchase Price for the Units of Preferred Stock (or,
following a Triggering Event, other securities, cash or other assets, as the
case may be) to be purchased thereby as set forth below and an amount equal to
any applicable transfer tax or evidence satisfactory to the Company of payment
of such tax, the Rights Agent shall, subject to Section 20(k), thereupon
promptly (i) requisition from the Depositary Agent depositary receipts
evidencing such number of Units of Preferred Stock as are to be purchased and
the Company will direct the Depositary Agent to comply with such request, (ii)
requisition from the Company the amount of cash, if any, to be paid in lieu of
fractional shares in accordance with Section 14, (iii) after receipt of such
depositary receipts, cause the same to be delivered to or upon the order of the
registered holder of such Rights Certificate, registered in such name or names
as may be designated by such holder, and (iv) after receipt thereof, deliver
such cash, if any, to or upon the order of the registered holder of such Rights
Certificate. In the event that the Company is obligated to issue Company Common
Stock, other securities of the Company, pay cash and/or distribute other
property pursuant to Section 11(a), the Company will make all arrangements
necessary so that such Company Common Stock, other securities, cash and/or other
property are available for distribution by the Rights Agent, if and when
appropriate. The payment of the Purchase Price (as such amount may be reduced
pursuant to Section 11(a)(iii) hereof) may be made in cash or by certified or
bank check or money order payable to the order of the Company.

               (d) In case the registered holder of any Rights Certificate shall
exercise less than all the Rights evidenced thereby, a new Rights Certificate
evidencing the Rights remaining unexercised shall be issued by the Rights Agent
and delivered to, or upon the order of, the registered holder of such Rights
Certificate, registered in such name or names as may be designated by such
holder, subject to the provisions of Section 14.

               (e) Notwithstanding anything in this Agreement to the contrary,
from and after the first occurrence of any Section 11(a)(ii) Event, any Rights
beneficially owned by (i) an Acquiring Person or any Associate or Affiliate of
an Acquiring Person, (ii) a transferee of an Acquiring Person (or of any such
Associate or Affiliate) that becomes a transferee after the Acquiring Person
becomes such, or (iii) a transferee of an Acquiring Person (or of any such
Associate or Affiliate) that becomes a transferee prior to or concurrently with
the Acquiring Person becoming such and that receives such Rights pursuant to
either (A) a transfer (whether or not for consideration) from the Acquiring
Person (or any such Associate or Affiliate) to holders of equity interests in
such Acquiring Person (or any such Associate or Affiliate) or to any Person with
whom the Acquiring Person (or such Associate or Affiliate) has any continuing

                                  Page 16 of 55

<PAGE>

agreement, arrangement or understanding regarding the transferred Rights, shares
of Company Common Stock or the Company or (B) a transfer that a majority of the
Independent Directors has determined to be part of a plan, arrangement or
understanding that has as a primary purpose or effect the avoidance of this
Section 7(e), shall be null and void without any further action, and no holder
of such Rights shall have any rights whatsoever with respect to such Rights,
whether under any provision of this Agreement or otherwise. The Company shall
use all reasonable efforts to ensure that the provisions of this Section 7(e)
and Section 4(b) are complied with, but shall have no liability to any holder of
Rights or any other Person as a result of its failure to make any determination
under this Section 7(e) or such Section 4(b) with respect to an Acquiring Person
or its Affiliates, Associates or transferees.

               (f) Notwithstanding anything in this Agreement or any Rights
Certificate to the contrary, neither the Rights Agent nor the Company shall be
obligated to undertake any action with respect to a registered holder upon the
occurrence of any purported exercise by such registered holder unless such
registered holder shall have (i) completed and executed the certificate
following the form of election to purchase set forth on the reverse side of the
Rights Certificate surrendered for such exercise, and (ii) provided such
additional evidence of the identity of the Beneficial Owner (or former
Beneficial Owner) of the Rights evidenced by such Rights Certificate or
Affiliates or Associates thereof as the Company shall reasonably request.

         SECTION 8. Cancellation and Destruction of Rights Certificates. All
Rights Certificates surrendered for the purpose of exercise, transfer, split up,
combination or exchange shall, if surrendered to the Company or any of its
agents, be delivered to the Rights Agent for cancellation or in canceled form,
or, if surrendered to the Rights Agent, shall be canceled by it, and no Rights
Certificates shall be issued in lieu thereof except as expressly permitted by
this Agreement. The Company shall deliver to the Rights Agent for cancellation
and retirement, and the Rights Agent shall so cancel and retire, any Rights
Certificates acquired by the Company otherwise than upon the exercise thereof.
The Rights Agent shall deliver all canceled Rights Certificates to the Company,
or shall, at the written request of the Company, destroy such canceled Rights
Certificates, and in such case shall deliver a certificate of destruction
thereof to the Company.

         SECTION 9. Reservation and Availability of Capital Stock.

               (a) The Company shall at all times prior to the Expiration Date
cause to be reserved and kept available, out of its authorized and unissued
shares of Preferred Stock, the number of shares of Preferred Stock that, as
provided in this Agreement, will be sufficient to permit the exercise in full of
all outstanding Rights. Upon the occurrence of any events resulting in an
increase in the aggregate number of shares of Preferred Stock (or other equity
securities of the Company) issuable upon exercise of all outstanding Rights
above the number then reserved, the Company shall make appropriate increases in
the number of shares so reserved.

               (b) If the shares of Preferred Stock to be issued and delivered
upon the exercise of the Rights may be listed on any national securities
exchange, the Company shall during the period from the Distribution Date through
the Expiration Date use its best efforts to cause all securities reserved for
such issuance to be listed on such exchange upon official notice of issuance
upon such exercise.


                                  Page 17 of 55

<PAGE>

               (c) The Company shall use its best efforts (i) as soon as
practicable following the occurrence of a Section 11(a)(ii) Event and a
determination by the Company in accordance with Section 11(a)(iii) of the
consideration to be delivered by the Company upon exercise of the Rights or, if
so required by law, as soon as practicable following the Distribution Date (such
date being the "Registration Date"), to file a registration statement on an
appropriate form under the Securities Act of 1933, as amended (the "Securities
Act"), with respect to the securities that may be acquired upon exercise of the
Rights (the "Registration Statement"), (ii) to cause the Registration Statement
to become effective as soon as practicable after such filing, (iii) to cause the
Registration Statement to continue to be effective (and to include a prospectus
complying with the requirements of the Securities Act) until the earlier of (A)
the date as of which the Rights are no longer exercisable for the securities
covered by the Registration Statement, and (B) the Expiration Date and (iv) to
take as soon as practicable following the Registration Date such action as may
be required to ensure that any acquisition of securities upon exercise of the
Rights complies with any applicable state securities or "blue sky" laws.

               (d) The Company shall take such action as may be necessary to
ensure that all shares of Preferred Stock (and, following the occurrence of a
Triggering Event, any other securities that may be delivered upon exercise of
Rights) shall be, at the time of delivery of the certificates or depositary
receipts for such securities, duly and validly authorized and issued and fully
paid and non-assessable.

               (e) The Company shall pay any documentary, stamp or transfer tax
imposed in connection with the issuance or delivery of the Rights Certificates
or upon the exercise of Rights; provided, however, that the Company shall not be
required to pay any such tax imposed in connection with the issuance or delivery
of Units of Preferred Stock, or any certificates or depositary receipts for such
Units of Preferred Stock (or, following the occurrence of a Triggering Event,
any other securities, cash or assets, as the case may be) to any person other
than the registered holder of the Rights Certificates evidencing the Rights
surrendered for exercise. The Company shall not be required to issue or deliver
any certificates or depositary receipts for Units of Preferred Stock (or,
following the occurrence of a Triggering Event, any other securities, cash or
assets, as the case may be) to, or in a name other than that of, the registered
holder upon the exercise of any Rights until any such tax shall have been paid
(any such tax being payable by the holder of such Rights Certificate at the time
of surrender) or until it has been established to the Company's satisfaction
that no such tax is due.

         SECTION 10. Preferred Stock Record Date. Each Person in whose
name any certificate for Units of Preferred Stock (or, following the occurrence
of a Triggering Event, other securities) is issued upon the exercise of Rights
shall for all purposes be deemed to have become the holder of record of the
Units of Preferred Stock (or, following the occurrence of a Triggering Event,
other securities) evidenced thereby on, and such certificate shall be dated, the
date upon which the Rights Certificate evidencing such Rights was duly
surrendered and payment of the Purchase Price (and any applicable transfer
taxes) was made; provided, however, that if the date of such surrender and
payment is a date upon which the Preferred Stock (or, following the occurrence
of a Triggering Event, other securities) transfer books of the Company are
closed, such Person shall be deemed to have become the record holder of such
securities on, and such certificate shall be dated, the next succeeding Business
Day on which the Preferred Stock (or, following the occurrence of a Triggering
Event, other securities) transfer books of the Company are open and; provided
further, however, that if delivery of Units of Preferred Stock is delayed
pursuant to Section 9(c), such Persons shall be deemed to have become the record
holders of such Units of Preferred Stock only when such Units first become
deliverable. Prior to the exercise of the Rights evidenced thereby, the holder
of a Rights Certificate shall not be entitled to any rights of a shareholder of
the Company with respect to

                                  Page 18 of 55

<PAGE>

securities for which the Rights shall be exercisable, including, without
limitation, the right to vote, to receive dividends or other distributions or to
exercise any preemptive rights, and shall not be entitled to receive any notice
of any proceedings of the Company, except as provided herein.

         SECTION 11. Adjustment of Purchase Price, Number and Kind of Shares or
Number of Rights. The Purchase Price, the number and kind of securities covered
by each Right and the number of Rights outstanding are subject to adjustment
from time to time as provided in this Section 11.

               (a) (i) In the event the Company shall at any time after the date
of this Agreement (A) declare a dividend on the Preferred Stock payable in
shares of Preferred Stock, (B) subdivide the outstanding shares of Preferred
Stock, (C) combine the outstanding shares of Preferred Stock into a smaller
number of shares, or (D) issue any shares of its capital stock in a
reclassification of the Preferred Stock (including any such reclassification in
connection with a consolidation or merger in which the Company is the continuing
or surviving corporation), except as otherwise provided in this Section 11(a),
the Purchase Price in effect at the time of the record date for such dividend or
of the effective date of such subdivision, combination or reclassification, and
the number and kind of shares of Preferred Stock or capital stock, as the case
may be, issuable on such date upon exercise of the Rights, shall be
proportionately adjusted so that the holder of any Right exercised after such
time shall be entitled to receive, upon payment of the Purchase Price then in
effect, the aggregate number and kind of shares of Preferred Stock or capital
stock, as the case may be, which, if such Right had been exercised immediately
prior to such date, such holder would have owned upon such exercise and been
entitled to receive by virtue of such dividend, subdivision, combination or
reclassification. If an event occurs that would require an adjustment under both
this Section 11(a)(i) and Section 11(a)(ii), the adjustment provided for in this
Section 11(a)(i) shall be in addition to, and shall be made prior to, any
adjustment required pursuant to Section 11(a)(ii).

               (ii) In the event:

                    (A) any Acquiring Person or any Associate or Affiliate of
any Acquiring Person, at any time after the date hereof, directly or indirectly,
(1) shall merge into the Company or otherwise combine with the Company and the
Company shall be the continuing or surviving corporation of such merger or
combination and Company Common Stock shall remain outstanding and unchanged, (2)
shall, in one transaction or a series of transactions, transfer any assets to
the Company or to any of its Subsidiaries in exchange (in whole or in part) for
shares of Company Common Stock, for other equity securities of the Company or
any such Subsidiary, or for securities exercisable for or convertible into
shares of equity securities of the Company or any of its Subsidiaries (whether
Company Common Stock or otherwise) or otherwise obtain from the Company or any
of its Subsidiaries, with or without consideration, any additional shares of
such equity securities or securities exercisable for or convertible into such
equity securities (other than pursuant to a pro rata distribution to all holders
of Company Common Stock), (3) shall sell, purchase, lease, exchange, mortgage,
pledge, transfer or otherwise acquire or dispose of, in one transaction or a
series of transactions, to, from or with the Company or any of its Subsidiaries
or any employee benefit plan maintained by the Company or any of its
Subsidiaries or any trustee or fiduciary with respect to such plan acting in
such capacity, assets (including securities) on terms and conditions less
favorable to the Company or such Subsidiary or plan than those that could have
been obtained in arm's-length negotiations with an unaffiliated third party,
other than pursuant to a transaction set forth in Section 13(a), (4) shall sell,
purchase, lease, exchange, mortgage, pledge, transfer or otherwise acquire or
dispose of, in one transaction or a series of transactions, to, from or with the
Company or any of the Company's

                                  Page 19 of 55

<PAGE>

Subsidiaries or any employee benefit plan maintained by the Company or any of
its Subsidiaries or any trustee or fiduciary with respect to such plan acting in
such capacity (other than transactions, if any, consistent with those engaged
in, as of the date hereof, by the Company and such Acquiring Person or such
Associate or Affiliate), assets (including securities) having an aggregate fair
market value of more than $5 million, other than pursuant to a transaction set
forth in Section 13(a), (5) shall sell, purchase, lease, exchange, mortgage,
pledge, transfer or otherwise acquire or dispose of, in one transaction or a
series of transactions, to, from or with the Company or any of its Subsidiaries
or any employee benefit plan maintained by the Company or any of its
Subsidiaries or any trustee or fiduciary with respect to such plan acting in
such capacity, any material trademark or material service mark, other than
pursuant to a transaction set forth in Section 13(a), (6) shall receive, or any
designee, agent or representative of such Acquiring Person or any Affiliate or
Associate of such Acquiring Person shall receive, any compensation from the
Company or any of its Subsidiaries other than compensation for full-time
employment as a regular employee at rates in accordance with the Company's (or
its Subsidiaries') past practices, or (7) shall receive the benefit, directly or
indirectly (except proportionately as a holder of Company Common Stock or as
required by law or governmental regulation), of any loans, advances, guarantees,
pledges or other financial assistance or any tax credits or other tax advantage
provided by the Company or any of its Subsidiaries or any employee benefit plan
maintained by the Company or any of its Subsidiaries or any trustee or fiduciary
with respect to such plan acting in such capacity; or

                    (B) any Person shall become an Acquiring Person, other than
pursuant to any transaction set forth in Section 13(a); or

                    (C) during such time as there is an Acquiring Person, there
shall be any reclassification of securities (including any reverse stock split),
or recapitalization of the Company, or any merger or consolidation of the
Company with any of its Subsidiaries or any other transaction or series of
transactions involving the Company or any of its Subsidiaries, other than a
transaction or transactions to which the provisions of Section 13(a) apply
(whether or not with or into or otherwise involving an Acquiring Person), which
has the effect, directly or indirectly, of increasing by more than 1% the
proportionate share of the outstanding shares of any class of equity securities
of the Company or any of its Subsidiaries that is directly or indirectly
beneficially owned by any Acquiring Person or any Associate or Affiliate of any
Acquiring Person;

then, immediately upon the date of the occurrence of an event described in
Section 11(a)(ii)(A)-(C) (a "Section 11(a)(ii) Event"), proper provision shall
be made so that each holder of a Right (except as provided below and in Section
7(e) hereof) shall thereafter have the right to receive, upon exercise thereof
at the then current Purchase Price in accordance with the terms of this
Agreement, in lieu of the number of Units of Preferred Stock for which a Right
was exercisable immediately prior to the first occurrence of a Section 11(a)(ii)
Event, such number of Units of Preferred Stock as shall equal the result
obtained by (x) multiplying the then current Purchase Price by the then number
of Units of Preferred Stock for which a Right was exercisable immediately prior
to the first occurrence of a Section 11(a)(ii) Event (such product thereafter
being, for all purposes of this Agreement other than Section 13, the "Purchase
Price"), and (y) dividing that product by 50% of the then current market price
(determined pursuant to Section 11(d) hereof) per Unit of Preferred Stock on the
date of such first occurrence (such Units of Preferred Stock being the
"Adjustment Shares").

               (iii) In the event that the number of shares of Preferred Stock
that are authorized by the Company's Certificate of Incorporation but not
outstanding or reserved for issuance for

                                  Page 20 of 55

<PAGE>

purposes other than upon exercise of the Rights is not sufficient to permit the
exercise in full of the Rights in accordance with the foregoing subparagraph
(ii) of this Section 11(a), the Company, by the vote of a majority of the
Independent Directors, shall: (A) determine the excess of (1) the value of the
Adjustment Shares issuable upon the exercise of a Right (the "Current Value")
over (2) the Purchase Price (such excess being the "Spread"), and (B) with
respect to each Right, make adequate provision to substitute for such Adjustment
Shares, upon payment of the applicable Purchase Price, (1) cash, (2) a reduction
in the Purchase Price, (3) Company Common Stock or other equity securities of
the Company (including, without limitation, shares, or units of shares, of
preferred stock (such other shares being "preferred stock equivalents")), (4)
debt securities of the Company, (5) other assets, or (6) any combination of the
foregoing, having an aggregate value equal to the Current Value, where such
aggregate value has been determined by a majority of the Independent Directors,
after receiving advice from a nationally recognized investment banking firm;
provided, however, that if the Company shall not have made adequate provision to
deliver value pursuant to clause (B) above within 30 days following the later of
(x) the first occurrence of a Section 11(a)(ii) Event and (y) the date on which
the Company's right of redemption pursuant to Section 23(a) expires (the later
of (x) and (y) being referred to herein as the "Section 11(a)(iii) Trigger
Date"), then the Company shall be obligated to deliver, upon the surrender for
exercise of a Right and without requiring payment of the Purchase Price, Units
of Preferred Stock (to the extent available) and then, if necessary, cash, which
Units of Preferred Stock and/or cash shall have an aggregate value equal to the
Spread. To the extent that the Company determines that some action need be taken
pursuant to the first sentence of this Section 11(a)(iii), the Company shall
provide, subject to Section 7(e), that such action shall apply uniformly to all
outstanding Rights. For purposes of this Section 11(a)(iii), the value of a Unit
of Preferred Stock shall be the current market price (as determined pursuant to
Section 11(d) hereof) per Unit of Preferred Stock on the Section 11(a)(iii)
Trigger Date and the value of any preferred stock equivalent shall be deemed to
have the same value as the Preferred Stock on such date.

               (b) In case the Company shall fix a record date for the issuance
of rights, options or warrants to all holders of Preferred Stock entitling them
to subscribe for or purchase (for a period expiring within 45 days after such
record date) shares of Preferred Stock (or shares having substantially the same
rights, privileges and preferences as shares of Preferred Stock ("Equivalent
Preferred Stock")) or securities convertible into Preferred Stock or Equivalent
Preferred Stock at a price per share of Preferred Stock or per share of
Equivalent Preferred Stock (or having a conversion price per share, if a
security convertible into Preferred Stock or Equivalent Preferred Stock) less
than the current market price (as determined pursuant to Section 11(d) hereof)
per share of Preferred Stock on such record date, the Purchase Price to be in
effect after such record date shall be determined by multiplying the Purchase
Price in effect immediately prior to such record date by a fraction, the
numerator of which shall be the sum of the number of shares of Preferred Stock
outstanding on such record date plus the number of shares of Preferred Stock
that the aggregate offering price of the total number of shares of Preferred
Stock and/or Equivalent Preferred Stock so to be offered (and/or the aggregate
initial conversion price of the convertible securities so to be offered) would
purchase at such current market price, and the denominator of which shall be the
number of shares of Preferred Stock outstanding on such record date plus the
number of additional shares of Preferred Stock and/or Equivalent Preferred Stock
to be offered for subscription or purchase (or into which the convertible
securities so to be offered are initially convertible). In case such
subscription price may be paid by delivery of consideration part or all of which
may be in a form other than cash, the value of such consideration shall be as
determined in good faith by a majority of the Independent Directors, whose
determination shall be described in a statement filed with the Rights Agent and
shall be binding on the Rights Agent and the holders of the Rights, shares of
Preferred Stock owned by or held for the account of the Company or any
Subsidiary shall not be deemed outstanding for the purpose of any such

                                  Page 21 of 55

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computation. Such adjustment shall be made successively whenever such a record
date is fixed, and in the event that such rights or warrants are not so issued
the Purchase Price shall be adjusted to be the Purchase Price which would then
be in effect if such record date had not been fixed.

               (c) In case the Company shall fix a record date for a
distribution to all holders of shares of Preferred Stock (including any such
distribution made in connection with a consolidation or merger in which the
Company is the continuing corporation) of evidences of indebtedness, cash (other
than a regular quarterly cash dividend out of the earnings or retained earnings
of the Company), assets (other than a dividend payable in shares of Preferred
Stock, but including any dividend payable in stock other than Preferred Stock)
or subscription rights or warrants (excluding those referred to in Section 11(b)
hereof), the Purchase Price to be in effect after such record date shall be
determined by multiplying the Purchase Price in effect immediately prior to such
record date by a fraction, the numerator of which shall be the current market
price (as determined pursuant to Section 11(d) hereof) per share of Preferred
Stock on such record date less the fair market value (as determined in good
faith by a majority of the Independent Directors, whose determination shall be
described in a statement filed with the Rights Agent and shall be binding on the
Rights Agent and the holder of the Rights) of the cash, assets or evidences of
indebtedness so to be distributed or of such subscription rights or warrants
distributable in respect of a share of Preferred Stock and the denominator of
which shall be such current market price (as determined pursuant to Section
11(d) hereof) per share of Preferred Stock. Such adjustments shall be made
successively whenever such a record date is fixed, and in the event that such
distribution is not so made, the Purchase Price shall be adjusted to be the
Purchase Price which would have been in effect if such record date had not been
fixed.

               (d) (i) For the purpose of any computation hereunder, the
"current market price" per share of Company Common Stock or Common Stock on any
date shall be deemed to be the average of the daily closing prices per share of
such shares for the 10 consecutive Trading Days (as such term is hereinafter
defined) immediately prior to such date; provided, however, that if prior to the
expiration of such requisite ten Trading Day-period the issuer announces either
(A) a dividend or distribution on such shares payable in such shares or
securities convertible into such shares (other than the Rights), or (B) any
subdivision, combination or reclassification of such shares, then, following the
ex-dividend date for such dividend or the record date for such subdivision, as
the case may be, the "current market price" shall be properly adjusted to take
into account such event. The closing price for each day shall be, if the shares
are listed and admitted to trading on a national securities exchange, as
reported in the principal consolidated transaction reporting system with respect
to securities listed on the principal national securities exchange on which such
shares are listed or admitted to trading or, if such shares are not listed or
admitted to trading on any national securities exchange, the last quoted price
or, if not so quoted, the average of the high bid and low asked prices in the
over-the-counter market, as reported by the National Association of Securities
Dealers, Inc. Automated Quotation System ("Nasdaq") or such other system then in
use, or, if on any such date such shares are not quoted by any such
organization, the average of the closing bid and asked prices as furnished by a
professional market maker making a market in such shares selected by a majority
of the Independent Directors. If on any such date no market maker is making a
market in such shares, the fair value of such shares on such date as determined
in good faith by a majority of the Independent Directors shall be used. If such
shares are not publicly held or not so listed or traded, "current market price"
per share shall mean the fair value per share as determined in good faith by a
majority of the Independent Directors, whose determination shall be described in
a statement filed with the Rights Agent and shall be conclusive for all
purposes. The term "Trading Day" shall mean, if such shares are listed or
admitted to trading on any national securities exchange, a day on which the
principal national

                                  Page 22 of 55

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securities exchange on which such shares are listed or admitted to trading is
open for the transaction of business or, if such shares are not so listed or
admitted, a Business Day.

               (ii) For the purpose of any computation hereunder, the "current
market price" per share of Preferred Stock shall be determined in the same
manner as set forth above for Company Common Stock in clause (i) of this Section
11(d) (other than the fourth sentence thereof). If the current market price per
share of Preferred Stock cannot be determined in the manner provided above or if
the Preferred Stock is not publicly held or listed or traded in a manner
described in clause (i) of this Section 11(d), the "current market price" per
share of Preferred Stock shall be conclusively deemed to be an amount equal to
1,000 (as such amount may be appropriately adjusted for such events as stock
splits, stock dividends and recapitalizations with respect to Company Common
Stock occurring after the date of this Agreement) multiplied by the current
market price per share of Company Common Stock. If neither Company Common Stock
nor Preferred Stock is publicly held or so listed or traded, "current market
price" per share of the Preferred Stock shall mean the fair value per share as
determined in good faith by a majority of the Independent Directors, whose
determination shall be described in a statement filed with the Rights Agent and
shall be binding on the Rights Agent and the holders of the Rights. For all
purposes of this Agreement, the "current market price" of a Unit of Preferred
Stock shall be equal to the "current market price" of one share of Preferred
Stock divided by 1,000.

               (e) Anything herein to the contrary notwithstanding, no
adjustment in the Purchase Price shall be required unless such adjustment would
require an increase or decrease of at least 1% in the Purchase Price; provided,
however, that any adjustments which by reason of this Section 11(e) are not
required to be made shall be carried forward and taken into account in any
subsequent adjustment. All calculations under this Section 11 shall be made to
the nearest cent or to the nearest one-thousandth of a share of Company Common
Stock or Common Stock or other share or hundred-thousandth of a share of
Preferred Stock, as the case may be. Notwithstanding the first sentence of this
Section 11(e), any adjustment required by this Section 11 shall be made no later
than the earlier of (i) three years from the date of the transaction that
mandates such adjustment and (ii) the Expiration Date.

               (f) If as a result of an adjustment made pursuant to Section
11(a)(ii) or 13(a) the holder of any Right thereafter exercised shall become
entitled to receive any shares of capital stock other than Preferred Stock,
thereafter the number of such other shares so receivable upon exercise of any
Right and the Purchase Price thereof shall be subject to adjustment from time to
time in a manner and on terms as nearly equivalent as practicable to the
provisions with respect to the Preferred Stock contained in Sections 11(a), (b),
(c), (d), (e), (g), (h), (i), (j), (k), (l) and (m), and the provisions of
Sections 7, 9, 10, 13 and 14 with respect to the Preferred Stock shall apply on
like terms to any such other shares.

               (g) All Rights originally issued by the Company subsequent to any
adjustment made to the Purchase Price hereunder shall evidence the right to
purchase, at the adjusted Purchase Price, the number of Units of Preferred Stock
(or other securities or amount of cash or combination thereof) that may be
acquired from time to time hereunder upon exercise of the Rights, all subject to
further adjustment as provided herein.

               (h) Unless the Company shall have exercised its election as
provided in Section 11(i), upon each adjustment of the Purchase Price as a
result of the calculations made in Sections 11(b) and (c), each Right
outstanding immediately prior to the making of such adjustment shall thereafter
evidence the right to purchase, at the adjusted Purchase Price, that number of
Units of Preferred Stock

                                  Page 23 of 55

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(calculated to the nearest hundred-thousandth of a Unit) obtained by (i)
multiplying (x) the number of Units of Preferred Stock covered by a Right
immediately prior to this adjustment by (y) the Purchase Price in effect
immediately prior to such adjustment of the Purchase Price and (ii) dividing the
product so obtained by the Purchase Price in effect immediately after such
adjustment of the Purchase Price.

               (i) The Company may elect on or after the date of any adjustment
of the Purchase Price to adjust the number of Rights, in lieu of any adjustment
in the number of Units of Preferred Stock that may be acquired upon the exercise
of a Right. Each of the Rights outstanding after the adjustment in the number of
Rights shall be exercisable for the number of Units of Preferred Stock for which
a Right was exercisable immediately prior to such adjustment. Each Right held of
record prior to such adjustment of the number of Rights shall become that number
of Rights (calculated to the nearest hundred-thousandth) obtained by dividing
the Purchase Price in effect immediately prior to adjustment of the Purchase
Price by the Purchase Price in effect immediately after adjustment of the
Purchase Price. The Company shall make a public announcement of its election to
adjust the number of Rights, indicating the record date for the adjustment, and,
if known at the time, the amount of the adjustment to be made. This record date
may be the date on which the Purchase Price is adjusted or any day thereafter,
but, if the Rights Certificates have been issued, shall be at least 10 days
later than the date of such public announcement. If Rights Certificates have
been issued, upon each adjustment of the number of Rights pursuant to this
Section 11(i), the Company shall, as promptly as practicable, cause to be
distributed to holders of record of Rights Certificates on such record date
Rights Certificates evidencing, subject to Section 14, the additional Rights to
which such holders shall be entitled as a result of such adjustment, or, at the
option of the Company, shall cause to be distributed to such holders of record
in substitution and replacement for the Rights Certificates held by such holders
prior to the date of adjustment, and upon surrender thereof, if required by the
Company, new Rights Certificates evidencing all the Rights to which such holders
shall be entitled after such adjustment. Rights Certificates to be so
distributed shall be issued, executed and countersigned in the manner provided
for herein (and may bear, at the option of the Company, the adjusted Purchase
Price) and shall be registered in the names of the holders of record of Rights
Certificates on the record date specified in the public announcement.

               (j) Irrespective of any adjustment or change in the Purchase
Price or the number of Units of Preferred Stock issuable upon the exercise of
the Rights, the Rights Certificates theretofore and thereafter issued may
continue to express the Purchase Price per Unit and the number of Units of
Preferred Stock that were expressed in the initial Rights Certificates issued
hereunder.

               (k) Before taking any action that would cause an adjustment
reducing the Purchase Price below the then par value of the number of Units of
Preferred Stock issuable upon exercise of the Rights, the Company shall take any
corporate action which may, in the opinion of its counsel, be necessary in order
that the Company may validly and legally issue such fully paid and nonassessable
number of Units of Preferred Stock at such adjusted Purchase Price.

               (l) In any case in which this Section 11 shall require that an
adjustment in the Purchase Price be made effective as of a record date for a
specified event, the Company may elect to defer until the occurrence of such
event the issuance to the holder of any Right exercised after such record date
of that number of Units of Preferred Stock and shares of other capital stock or
securities of the Company, if any, issuable upon such exercise over and above
the number of Units of Preferred Stock and shares of other capital stock or
securities of the Company, if any, issuable upon such exercise on the basis of
the Purchase Price in effect prior to such adjustment; provided, however, that
the Company shall deliver to

                                  Page 24 of 55

<PAGE>

such holder a due bill or other appropriate instrument evidencing such holder's
right to receive such additional shares (fractional or otherwise) or securities
upon the occurrence of the event requiring such adjustment.

               (m) Anything in this Section 11 to the contrary notwithstanding,
the Company shall be entitled to make such reductions in the Purchase Price, in
addition to those adjustments expressly required by this Section 11, as and to
the extent that in their good faith judgment a majority of the Independent
Directors shall determine to be advisable in order that any (i) consolidation or
subdivision of the Preferred Stock, (ii) issuance wholly for cash of any shares
of Preferred Stock at less than the current market price, (iii) issuance wholly
for cash of shares of Preferred Stock or securities that by their terms are
convertible into or exchangeable for shares of Preferred Stock, (iv) stock
dividends or (v) issuance of rights, options or warrants referred to in this
Section 11, hereafter made by the Company to holders of its Preferred Stock,
shall not be taxable to such holders or shall reduce the taxes payable by such
holders.

               (n) The Company shall not, at any time after the Distribution
Date, (i) consolidate with any other Person (other than a Subsidiary of the
Company in a transaction that complies with Section 11(o) hereof), (ii) merge
with or into any other Person (other than a Subsidiary of the Company in a
transaction which complies with Section 11(o) hereof), or (iii) sell or transfer
(or permit any Subsidiary to sell or transfer), in one transaction, or a series
of transactions, assets or earning power aggregating more than 50% of the assets
or earning power of the Company and its Subsidiaries (taken as a whole) to any
other Person or Persons (other than the Company and/or any of its Subsidiaries
in one or more transactions each of which complies with Section 11(o) hereof),
if (x) at the time of or immediately after such consolidation, merger or sale
there are any rights, warrants or other instruments or securities outstanding or
agreements in effect that would substantially diminish or otherwise eliminate
the benefits intended to be afforded by the Rights or (y) prior to,
simultaneously with or immediately after such consolidation, merger or sale, the
Person which constitutes, or would constitute, the "Principal Party" for
purposes of Section 13(a) shall have distributed or otherwise transferred to its
shareholders or other persons holding an equity interest in such Person, Rights
previously owned by such Person or any of its Affiliates and Associates;
provided, however, that this Section 11(n) shall not affect the ability of any
Subsidiary of the Company to consolidate with, merge with or into, or sell or
transfer assets or earning power to, any other Subsidiary of the Company.

               (o) After the Distribution Date, the Company shall not, except as
permitted by Section 23 or Section 26, take (or permit any Subsidiary to take)
any action if at the time such action is taken it is reasonably foreseeable that
such action will diminish substantially or otherwise eliminate the benefits
intended to be afforded by the Rights.

               (p) Anything in this Agreement to the contrary notwithstanding,
in the event that the Company shall at any time after the Rights Dividend
Declaration Date and prior to the Distribution Date (i) declare a dividend on
the outstanding shares of Company Common Stock payable in shares of Company
Common Stock, (ii) subdivide the outstanding shares of Company Common Stock,
(iii) combine the outstanding shares of Company Common Stock into a smaller
number of shares, or (iv) issue any shares of its capital stock in a
reclassification of Company Common Stock (including any such reclassification in
connection with a consolidation or merger in which the Company is the continuing
or surviving corporation), the number of Rights associated with each share of
Company Common Stock then outstanding, or issued or delivered thereafter but
prior to the Distribution Date, shall be proportionately adjusted so that the
number of Rights thereafter associated with each share of Company Common Stock

                                  Page 25 of 55

<PAGE>

following any such event shall equal the result obtained by multiplying the
number of Rights associated with each share of Company Common Stock immediately
prior to such event by a fraction, the numerator of which shall be the total
number of shares of Company Common Stock outstanding immediately prior to the
occurrence of the event and the denominator of which shall be the total number
of shares of Company Common Stock outstanding immediately following the
occurrence of such event.

         SECTION 12. Certificate of Adjusted Purchase Price or Number
of Shares. Whenever an adjustment is made as provided in Section 11 or Section
13, the Company shall (a) promptly prepare a certificate setting forth such
adjustment and a brief statement of the facts accounting for such adjustment,
(b) promptly file with the Rights Agent, and with each transfer agent for the
Preferred Stock and the Company Common Stock, a copy of such certificate, and
(c) mail a brief summary thereof to each holder of a Rights Certificate (or, if
prior to the Distribution Date, to each holder of a certificate evidencing
shares of Company Common Stock) in accordance with Section 25. The Rights Agent
shall be fully protected in relying on any such certificate and on any
adjustment therein contained and shall not be deemed to have knowledge of any
such adjustment unless and until it shall have received such certificate.

         SECTION 13. Consolidation, Merger or Sale or Transfer of Assets or
Earning Power.

               (a) In the event that, following the Stock Acquisition Date,
directly or indirectly, either (x) the Company shall consolidate with, or merge
with and into, any other Person (other than a Subsidiary of the Company in a
transaction which complies with Section 11(o) hereof), and the Company shall not
be the continuing or surviving corporation of such consolidation or merger, (y)
any Person (other than a Subsidiary of the Company in a transaction which
complies with Section 11(o) hereof) shall consolidate with, or merge with or
into, the Company, and the Company shall be the continuing or surviving
corporation of such consolidation or merger and, in connection with such
consolidation or merger, all or part of the outstanding shares of Company Common
Stock shall be converted into or exchanged for stock or other securities of any
other Person or cash or any other property, or (z) the Company shall sell or
otherwise transfer (or one or more of its Subsidiaries shall sell or otherwise
transfer) to any Person or Persons (other than the Company or any of its
Subsidiaries in one or more transactions each of which complies with Section
11(o) hereof), in one or more transactions assets or earning power aggregating
more than 50% of the assets or earning power of the Company and its Subsidiaries
(taken as a whole) (any such event being a "Section 13 Event"), then, and in
each such case, proper provision shall be made so that: (i) each holder of a
Right, except as provided in Section 7(e), shall thereafter have the right to
receive, upon the exercise thereof at the then current Purchase Price, such
number of validly authorized and issued, fully paid and nonassessable shares of
Common Stock of the Principal Party (as such term is hereinafter defined), which
shares shall not be subject to any liens, encumbrances, rights of first refusal,
transfer restrictions or other adverse claims, as shall be equal to the result
obtained by (1) multiplying the then current Purchase Price by the number of
Units of Preferred Stock for which a Right is exercisable immediately prior to
the first occurrence of a Section 13 Event (or, if a Section 11(a)(ii) Event has
occurred prior to the first occurrence of a Section 13 Event, multiplying the
number of such Units for which a Right would be exercisable hereunder but for
the occurrence of such Section 11(a)(ii) Event by the Purchase Price which would
be in effect hereunder but for such first occurrence) and (2) dividing that
product (which, following the first occurrence of a Section 13 Event, shall be
the "Purchase Price" for all purposes of this Agreement) by 50% of the current
market price (determined pursuant to Section 11(d) hereof) per share of the
Common Stock of such Principal Party on the date of consummation of such Section
13 Event; (ii) such Principal Party shall thereafter be liable for, and shall
assume, by virtue of such Section 13 Event, all the obligations and duties of
the Company pursuant to this Agreement; (iii) the term "Company" shall

                                  Page 26 of 55

<PAGE>

thereafter be deemed to refer to such Principal Party, it being specifically
intended that the provisions of Section 11 shall apply only to such Principal
Party following the first occurrence of a Section 13 Event; (iv) such Principal
Party shall take such steps (including, but not limited to the reservation of a
sufficient number of shares of its Common Stock) in connection with the
consummation of any such transaction as may be necessary to ensure that the
provisions of this Agreement shall thereafter be applicable to its shares of
Common Stock thereafter deliverable upon the exercise of the Rights; and (v) the
provisions of Section 11(a)(ii) shall be of no further effect following the
first occurrence of any Section 13 Event.

               (b) "Principal Party" means:

               (i) in the case of any transaction described in clause (x) or (y)
of the first sentence of Section 13(a), (A) the Person that is the issuer of any
securities into which shares of Company Common Stock are converted in such
merger or consolidation, or, if there is more than one such issuer, the issuer
of Common Stock that has the highest aggregate current market price (determined
pursuant to Section 11(d) hereof) and (B) if no securities are so issued, the
Person that is the other party to such merger or consolidation, or, if there is
more than one such Person, the Person the Common Stock of which has the highest
aggregate current market price (determined pursuant to Section 11(d) hereof);
and

               (ii) in the case of any transaction described in clause (z) of
the first sentence of Section 13(a), the Person that is the party receiving the
largest portion of the assets or earning power transferred pursuant to such
transaction or transactions, or, if each Person that is a party to such
transaction or transactions receives the same portion of the assets or earning
power transferred pursuant to such transaction or transactions or if the Person
receiving the largest portion of the assets or earning power cannot be
determined, whichever Person the Common Stock of which has the highest aggregate
current market price (determined pursuant to Section 11(d) hereof); provided,
however, that in any such case, (1) if the Common Stock of such Person is not at
such time and has not been continuously over the preceding 12-month period
registered under Section 12 of the Exchange Act ("Registered Common Stock"), or
such Person is not a corporation, and such Person is a direct or indirect
Subsidiary of another Person that has Registered Common Stock outstanding,
"Principal Party" shall refer to such other Person; (2) if the Common Stock of
such Person is not Registered Common Stock or such Person is not a corporation,
and such Person is a direct or indirect Subsidiary of another Person but is not
a direct or indirect Subsidiary of another Person which has Registered Common
Stock outstanding, "Principal Party" shall refer to the ultimate parent entity
of such first-mentioned Person; (3) if the Common Stock of such Person is not
Registered Common Stock or such Person is not a corporation, and such Person is
directly or indirectly controlled by more than one Person, and one or more of
such other Persons has Registered Common Stock outstanding, "Principal Party"
shall refer to whichever of such other Persons is the issuer of the Registered
Common Stock having the highest aggregate current market price (determined
pursuant to Section 11(d) hereof); and (4) if the Common Stock of such Person is
not Registered Common Stock or such Person is not a corporation, and such Person
is directly or indirectly controlled by more than one Person, and none of such
other Persons have Registered Common Stock outstanding, "Principal Party" shall
refer to whichever ultimate parent entity is the corporation having the greatest
shareholders' equity or, if no such ultimate parent entity is a corporation,
shall refer to whichever ultimate parent entity is the entity having the
greatest net assets.

               (c) The Company shall not consummate any such consolidation,
merger, sale or transfer unless the Principal Party shall have a sufficient
number of authorized shares of its Common Stock that have not been issued or
reserved for issuance to permit the exercise in full of the Rights in

                                  Page 27 of 55

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accordance with this Section 13, and unless prior thereto the Company and such
Principal Party shall have executed and delivered to the Rights Agent a
supplemental agreement providing for the terms set forth in paragraphs (a) and
(b) of this Section 13 and further providing that the Principal Party will:

               (i) (ii) file on an appropriate form, as soon as practicable
following the execution of such agreement, a registration statement under the
Securities Act with respect to the Common Stock that may be acquired upon
exercise of the Rights, (B) cause such registration statement to remain
effective (and to include a prospectus complying with the requirements of the
Securities Act) until the Expiration Date, and (C) as soon as practicable
following the execution of such agreement, take such action as may be required
to ensure that any acquisition of such Common Stock upon the exercise of the
Rights complies with any applicable state security or "blue sky" laws; and

               (iii) deliver to holders of the Rights historical financial
statements for the Principal Party and each of its Affiliates which comply in
all respects with the requirements for registration on Form 10 under the
Exchange Act.

               (d) In case the Principal Party that is to be a party to a
transaction referred to in this Section 13 has a provision in any of its
authorized securities or in its Certificate of Incorporation or By-laws or other
instrument governing its corporate affairs, which provision would have the
effect of (i) causing such Principal Party to issue, in connection with, or as a
consequence of, the consummation of a transaction referred to in this Section
13, shares of Common Stock of such Principal Party at less than the then current
market price per share (determined pursuant to Section 11(d) hereof) or
securities exercisable for, or convertible into Common Stock of such Principal
Party at less than such then current market price (other than to holders of
Rights pursuant to this Section 13) or (ii) providing for any special payment,
tax or similar provisions in connection with the issuance of the Common Stock of
such Principal Party pursuant to the provisions of this Section 13; then, in
such event, the Company shall not consummate any such transaction unless prior
thereto the Company and such Principal Party shall have executed and delivered
to the Rights Agent a supplemental agreement providing that the provision in
question of such Principal Party shall have been canceled, waived or amended, or
that the authorized securities shall be redeemed, so that the applicable
provision will have no effect in connection with, or as a consequence of, the
consummation of the proposed transaction.

               (e) The provisions of this Section 13 shall similarly apply to
successive mergers or consolidations or sales or other transfers. In the event
that a Section 13 Event shall occur at any time after the occurrence of a
Section 11(a)(ii) Event, the Rights which have not theretofore been exercised
shall thereafter become exercisable in the manner described in Section 13(a).

         SECTION 14. Fractional Rights and Fractional Shares.

               (a) The Company shall not be required to issue fractions of
Rights or to distribute Rights Certificates that evidence fractional Rights. In
lieu of such fractional Rights, there shall be paid to the Persons to which such
fractional Rights would otherwise be issuable, an amount in cash equal to such
fraction of the market value of a whole Right. For purposes of this Section
14(a), the market value of a whole Right shall be the closing price of the
Rights for the Trading Day immediately prior to the date on which such
fractional Rights would have been otherwise issuable. The closing price of the
Rights for any day shall be, if the Rights are listed or admitted to trading on
a national securities exchange, as reported in the principal consolidated
transaction reporting system with respect to securities listed on the

                                  Page 28 of 55

<PAGE>

principal national securities exchange on which the Rights are listed or
admitted to trading or, if the Rights are not listed or admitted to trading on
any national securities exchange, the last quoted price or, if not so quoted,
the average of the high bid and low asked prices in the over-the-counter market
as reported by NASDAQ or such other system then in use or, if on any such date
the Rights are not quoted by any such organization, the average of the closing
bid and asked prices as furnished by a professional market maker making a market
in the Rights selected by a majority of the Independent Directors. If on any
such date no such market maker is making a market in the Rights, the fair value
of the Rights on such date as determined in good faith by a majority of the
Independent Directors shall be used and such determination shall be described in
a statement filed with the Rights Agent and the holders of the Rights.

               (b) The Company shall not be required to issue fractions of
shares of Preferred Stock (other than fractions that are integral multiples of
one one-thousandth of a share of Preferred Stock) upon exercise of the Rights or
to distribute certificates that evidence such fractional shares of Preferred
Stock (other than fractions which are integral multiples of one one-thousandth
of a share of Preferred Stock). In lieu of such fractional shares of Preferred
Stock that are not integral multiples of one one-thousandth of a share, the
Company may pay to the registered holders of Rights Certificates at the time
such Rights are exercised as herein provided an amount in cash equal to the same
fraction of the then current market price of a share of Preferred Stock on the
day of exercise, determined in accordance with Section 11(d).

               (c) The holder of a Right by the acceptance of the Rights
expressly waives his or her right to receive any fractional Rights or any
fractional shares upon exercise of a Right, except as permitted by this Section
14.

         SECTION 15. Rights of Action. All rights of action in respect
of this Agreement, other than rights of action vested in the Rights Agent
pursuant to Section 18, are vested in the respective registered holders of the
Rights Certificates (and, prior to the Distribution Date, the registered holders
of certificates evidencing shares of Company Common Stock); and any registered
holder of a Rights Certificate (or, prior to the Distribution Date, of a
certificate evidencing shares of Company Common Stock), without the consent of
the Rights Agent or of the holder of any other Rights Certificate (or, prior to
the Distribution Date, of a certificate evidencing shares of Company Common
Stock), may, in his or her own behalf and for his or her own benefit, enforce,
and may institute and maintain any suit, action or proceeding against the
Company or any other Person to enforce, or otherwise act in respect of, his or
her right to exercise the Rights evidenced by such Rights Certificate in the
manner provided in such Rights Certificate and in this Agreement. Without
limiting the foregoing or any remedies available to the holders of Rights, it is
specifically acknowledged that the holders of Rights would not have an adequate
remedy at law for any breach of this Agreement and shall be entitled to specific
performance of the obligations hereunder and injunctive relief against actual or
threatened violations of the obligations hereunder of any Person subject to this
Agreement.

         SECTION 16. Agreement of Rights Holders. Every holder of a Right by
accepting the same consents to and agrees with the Company and the Rights Agent
and with every other holder of a Right that:

               (a) prior to the Distribution Date, the Rights will be
transferable only in connection with the transfer of Company Common Stock;

                                  Page 29 of 55

<PAGE>

               (b) after the Distribution Date, the Rights Certificates are
transferable only on the registry books of the Rights Agent if surrendered at
the office of the Rights Agent designated for such purposes duly endorsed or
accompanied by a proper instrument of transfer and with the appropriate forms
and certificates duly executed;

               (c) subject to Section 6(a) and Section 7(f), the Company and the
Rights Agent may deem and treat the person in whose name a Rights Certificate
(or, prior to the Distribution Date, the associated Company Common Stock
certificate) is registered as the absolute owner thereof and of the Rights
evidenced thereby (notwithstanding any notations of ownership or writing on the
Rights Certificates or the associated Company Common Stock certificate made by
anyone other than the Company or the Rights Agent) for all purposes whatsoever,
and neither the Company nor the Rights Agent, subject to the last sentence of
Section 7(e), shall be affected by any notice to the contrary; and

               (d) notwithstanding anything in this Agreement to the contrary,
neither the Company nor the Rights Agent shall have any liability to any holder
of a Right or any other Person as a result of its inability to perform any of
its obligations under this Agreement by reason of any preliminary or permanent
injunction or other order, decree or ruling issued by a court of competent
jurisdiction or by a governmental, regulatory or administrative agency or
commission, or any statute, rule, regulation or executive order promulgated or
enacted by any governmental authority, prohibiting or otherwise restraining
performance of such obligation; provided, however, the Company must use its best
efforts to have any such order, decree or ruling lifted or otherwise overturned
as promptly as practicable.

         SECTION 17. Rights Certificate Holder Not Deemed a Shareholder. No
holder, as such, of any Rights Certificate shall be entitled to vote, receive
dividends or be deemed for any purpose the holder of the number of shares of
Preferred Stock or any other securities of the Company that may at any time be
issuable on the exercise of the Rights evidenced thereby, nor shall anything
contained herein or in any Rights Certificate be construed to confer upon the
holder of any Rights Certificate, as such, any of the rights of a shareholder of
the Company or any right to vote for the election of directors or upon any
matter submitted to shareholders at any meeting thereof, or to give or withhold
consent to any corporate action, or, except as provided in Section 24, to
receive notice of meetings or other actions affecting shareholders, or to
receive dividends or subscription rights, or otherwise, until the Right or
Rights evidenced by such Rights Certificate shall have been exercised in
accordance with the provisions hereof.

         SECTION 18. Concerning the Rights Agent.

               (a) The Company agrees to pay to the Rights Agent reasonable
compensation for all services rendered by it hereunder and, from time to time,
on demand of the Rights Agent, its reasonable expenses, including reasonable
fees and disbursements of its counsel, incurred in connection with the execution
and administration of this Agreement and the exercise and performance of its
duties hereunder. The Company shall indemnify the Rights Agent for, and hold it
harmless against, any loss, liability, or expense, incurred without gross
negligence, bad faith or wilful misconduct on the part of the Rights Agent, for
anything done or omitted by the Rights Agent in connection with the acceptance
and administration of this Agreement, including the costs and expenses of
defending against any claim of liability hereunder.

               (b) The Rights Agent shall be protected and shall incur no
liability for or in respect of any action taken, suffered or omitted by it in
connection with its administration of this

                                  Page 30 of 55

<PAGE>

Agreement in reliance upon any Rights Certificate or certificate for Preferred
Stock or for other securities of the Company, instrument of assignment or
transfer, power of attorney, endorsement, affidavit, letter, notice, direction,
consent, certificate, statement or other paper or document believed by it to be
genuine and to have been signed and/or executed or made by the proper Person or
Persons.

         SECTION 19. Merger or Consolidation or Change of Name of Rights Agent.

               (a) Any corporation into which the Rights Agent or any successor
Rights Agent may be merged or with which it may be consolidated, or any
corporation resulting from any merger or consolidation to which the Rights Agent
or any successor Rights Agent shall be a party, or any corporation succeeding to
the corporate trust or shareholder services businesses of the Rights Agent or
any successor Rights Agent, shall be the successor to the Rights Agent under
this Agreement without the execution or filing of any document or any further
act on the part of any of the parties hereto; provided, however, that such
corporation would be eligible for appointment as a successor Rights Agent under
the provisions of Section 21. In case at the time such successor Rights Agent
shall succeed to the agency created by this Agreement, any of the Rights
Certificates shall have been countersigned but not delivered, any such successor
Rights Agent may adopt the countersignature of a predecessor Rights Agent and
deliver such Rights Certificates so countersigned; and in case at that time any
of the Rights Certificates shall not have been countersigned, any successor
Rights Agent may countersign such Rights Certificates either in the name of the
predecessor or in the name of the successor Rights Agent; and in all such cases
such Rights Certificates shall have the full force provided in the Rights
Certificates and in this Agreement.

               (b) In case at any time the name of the Rights Agent shall be
changed and at such time any of the Rights Certificates shall have been
countersigned but not delivered, the Rights Agent may adopt the countersignature
under its prior name and deliver Rights Certificates so countersigned; and in
case at that time any of the Rights Certificates shall not have been
countersigned, the Rights Agent may countersign such Rights Certificates either
in its prior name or in its changed name; and in all such cases such Rights
Certificates shall have the full force provided in the Rights Certificates and
in this Agreement.

         SECTION 20. Duties of Rights Agent. The Rights Agent undertakes the
duties and obligations imposed by this Agreement upon the following terms and
conditions, by all of which the Company and the holders of Rights Certificates,
by their acceptance thereof, shall be bound:

               (a) Before the Rights Agent acts or refrains from acting, it may
consult with legal counsel (who may be legal counsel for the Company), and the
opinion of such counsel shall be full and complete authorization and protection
to the Rights Agent as to any action taken or omitted by it in good faith and in
accordance with such opinion.

               (b) Whenever in the performance of its duties under this
Agreement the Rights Agent shall deem it necessary or desirable that any fact or
matter (including, without limitation, the identity of any Acquiring Person and
the determination of "current market price") be proved or established by the
Company prior to taking or suffering any action hereunder, such fact or matter
(unless other evidence in respect thereof be specified herein) may be deemed to
be conclusively proved and established by a certificate signed by the Chairman
of the Board, the Chief Executive Officer, the President, any Vice President,
the Treasurer, any Assistant Treasurer, the Secretary or any Assistant Secretary
of the Company and delivered to the Rights Agent; provided, however, that so
long as any Person is an Acquiring Person hereunder, such certificate shall be
signed and delivered by a majority of the Independent Directors; and

                                  Page 31 of 55

<PAGE>

such certificate shall be full authorization to the Rights Agent for any action
taken or suffered in good faith by it under the provisions of this Agreement in
reliance upon such certificate.

               (c) The Rights Agent shall be liable hereunder only for its own
gross negligence, bad faith or wilful misconduct.

               (d) The Rights Agent shall not be liable for or by reason of any
of the statements of fact or recitals contained in this Agreement or in the
Rights Certificates or be required to verify the same (except as to its
countersignature on such Rights Certificates), but all such statements and
recitals are and shall be deemed to have been made by the Company only.

               (e) The Rights Agent shall not have any responsibility for the
validity of this Agreement or the execution and delivery hereof (except the due
execution hereof by the Rights Agent) or for the validity or execution of any
Rights Certificate (except its countersignature thereof); nor shall it be
responsible for any breach by the Company of any covenant or failure by the
Company to satisfy conditions contained in this Agreement or in any Rights
Certificate; nor shall it be responsible for any adjustment required under the
provisions of Section 11 or Section 13 or for the manner, method or amount of
any such adjustment or the ascertaining of the existence of facts that would
require any such adjustment (except with respect to the exercise of Rights
evidenced by Rights Certificates after receipt by the Rights Agent of the
certificate describing any such adjustment contemplated by Section 12); nor
shall it by any act hereunder be deemed to make any representation or warranty
as to the authorization or reservation of any shares of Preferred Stock or any
other securities to be issued pursuant to this Agreement or any Rights
Certificate or as to whether any shares of Preferred Stock or any other
securities will, when so issued, be validly authorized and issued, fully paid
and nonassessable.

               (f) The Company shall perform, execute, acknowledge and deliver
or cause to be performed, executed, acknowledged and delivered all such further
acts, instruments and assurances as may reasonably be required by the Rights
Agent for the performance by the Rights Agent of its duties under this
Agreement.

               (g) The Rights Agent is hereby authorized and directed to accept
instructions with respect to the performance of its duties hereunder from the
Chairman of the Board, the Chief Executive Officer, the President, any Vice
President, the Secretary, any Assistant Secretary, the Treasurer or any
Assistant Treasurer of the Company, and to apply to such officers for advice or
instructions in connection with its duties, and it shall not be liable for any
action taken or suffered to be taken by it in good faith in accordance with
instructions of any such officer; provided, however, that so long as any Person
is an Acquiring Person hereunder, the Rights Agent shall accept such
instructions and advice only from a majority of the Independent Directors and
shall not be liable for any action taken or suffered to be taken by it in good
faith in accordance with such instructions of the majority of the Independent
Directors. Any application by the Rights Agent for written instructions from the
Company may, at the option of the Rights Agent, set forth in writing any action
proposed to be taken or omitted by the Rights Agent under this Rights Agreement
and the date on and/or after which such action shall be taken or such omission
shall be effective. The Rights Agent shall not be liable for any action taken
by, or omission of, the Rights Agent in accordance with a proposal included in
any such application on or after the date specified in such application (which
date shall not be less than five Business Days after the date any such officer
of the Company actually receives such application, unless any such officer shall
have consented in writing to an earlier date) unless, prior to taking any such
action (or the effective date in the case of an omission), the

                                  Page 32 of 55

<PAGE>

Rights Agent shall have received written instructions in response to such
application specifying the action to be taken or omitted.

               (h) The Rights Agent and any shareholder, director, officer or
employee of the Rights Agent may buy, sell or deal in any of the Rights or other
securities of the Company or become pecuniarily interested in any transaction in
which the Company may be interested, or contract with or lend money to the
Company or otherwise act as fully and freely as though it were not the Rights
Agent under this Agreement. Nothing herein shall preclude the Rights Agent from
acting in any other capacity for the Company or for any other legal entity.

               (i) The Rights Agent may execute and exercise any of the rights
or powers hereby vested in it or perform any duty hereunder either itself or by
or through its attorneys or agents.

               (j) No provision of this Agreement shall require the Rights Agent
to expend or risk its own funds or otherwise incur any financial liability in
the performance of any of its duties or in the exercise of its rights hereunder
if the Rights Agent shall have reasonable grounds for believing that repayment
of such funds or adequate indemnification against such risk or liability is not
reasonably assured to it.

               (k) If, with respect to any Rights Certificate surrendered to the
Rights Agent for exercise or transfer, the certificate attached to the form of
assignment or form of election to purchase, as the case may be, has either not
been completed, not signed or indicates an affirmative response to clause 1
and/or 2 thereof, the Rights Agent shall not take any further action with
respect to such requested exercise or transfer without first consulting with the
Company. If such certificate has been completed and signed and shows a negative
response to clauses 1 and 2 of such certificate, unless previously instructed
otherwise in writing by the Company (which instructions may impose on the Rights
Agent additional ministerial responsibilities, but no discretionary
responsibilities), the Rights Agent may assume without further inquiry that the
Rights Certificate is not owned by a person described in Section 4(b) or Section
7(e) and shall not be charged with any knowledge to the contrary.

         SECTION 21. Change of Rights Agent. The Rights Agent or any successor
Rights Agent may resign and be discharged from its duties under this Agreement
upon 30 days' prior notice in writing mailed to the Company, and to each
transfer agent of the Preferred Stock and the Company Common Stock, by
registered or certified mail, and to the holders of the Rights Certificates by
first-class mail. The Company may remove the Rights Agent or any successor
Rights Agent upon 30 days' prior notice in writing, mailed to the Rights Agent
or successor Rights Agent, as the case may be, and to each transfer agent of the
Preferred Stock and the Company Common Stock, by registered or certified mail,
and to the holders of the Rights Certificates by first-class mail. If the Rights
Agent shall resign or be removed or shall otherwise become incapable of acting,
the Company shall appoint a successor to the Rights Agent. If the Company shall
fail to make such appointment within a period of 30 days after giving notice of
such removal or after it has been notified in writing of such resignation or
incapacity by the resigning or incapacitated Rights Agent or by the holder of a
Rights Certificate (who shall, with such notice, submit his or her Rights
Certificate for inspection by the Company), then any registered holder of any
Rights Certificate may apply to any court of competent jurisdiction for the
appointment of a new Rights Agent. Any successor Rights Agent, whether appointed
by the Company or by such a court, shall be (a) a corporation organized and
doing business under the laws of the United States or any state of the United
States in good standing, shall be authorized to do business as a banking
institution in the State of New

                                  Page 33 of 55

<PAGE>

York or the Commonwealth of Pennsylvania, shall be authorized under such laws to
exercise corporate trust or stock transfer powers, shall be subject to
supervision or examination by federal or state authorities and shall have at the
time of its appointment as Rights Agent a combined capital and surplus of at
least $100,000,000 or (b) an Affiliate of a corporation described in clause (a).
After appointment, the successor Rights Agent shall be vested with the same
powers, rights, duties and responsibilities as if it had been originally named
as Rights Agent without further act or deed; but the predecessor Rights Agent
shall deliver and transfer to the successor Rights Agent any property at the
time held by it hereunder, and execute and deliver any further assurance,
conveyance, act or deed necessary for the purpose. Not later than the effective
date of any such appointment, the Company shall file notice thereof in writing
with the predecessor Rights Agent and each transfer agent of the Preferred Stock
and the Company Common Stock, and mail a notice thereof in writing to the
registered holders of the Rights Certificates. Failure to give any notice
provided for in this Section 21, however, or any defect therein, shall not
affect the legality or validity of the resignation or removal of the Rights
Agent or the appointment of the successor Rights Agent.

         SECTION 22. Issuance of New Rights Certificates. Notwithstanding
any of the provisions of this Agreement or the Rights to the contrary, the
Company may, at its option, issue new Rights Certificates evidencing Rights in
such form as may be approved by a majority of the Independent Directors to
reflect any adjustment or change made in accordance with the provisions of this
Agreement in the Purchase Price or the number or kind or class of shares or
other securities or property that may be acquired under the Rights Certificates.
In addition, in connection with the issuance or sale of shares of Company Common
Stock following the Distribution Date and prior to the Expiration Date, the
Company (a) shall with respect to shares of Company Common Stock so issued or
sold pursuant to the exercise of stock options or under any employee plan or
arrangement, or upon the exercise, conversion or exchange of securities
hereinafter issued by the Company, and (b) may, in any other case, if deemed
necessary or appropriate by a majority of the Independent Directors, issue
Rights Certificates representing the appropriate number of Rights in connection
with such issuance or sale; provided, however, that (i) no such Rights
Certificate shall be issued if, and to the extent that, the Company shall be
advised by counsel that such issuance would create a significant risk of
material adverse tax consequences to the Company or the person to whom such
Rights Certificate would be issued, and (ii) no such Rights Certificate shall be
issued if, and to the extent that, appropriate adjustment shall otherwise have
been made in lieu of the issuance thereof.

         SECTION 23. Redemption and Termination.

               (a) Subject to Section 30, the Company may, at its option, by
action of a majority of the Independent Directors, at any time prior to (i) the
Close of Business on the tenth Business Day following the Stock Acquisition
Date, or (ii) such later date as a majority of the Independent Directors shall
determine (such determination to be made prior to the date specified in (i)
above) and of which the Company will give the Rights Agent prompt written
notice, but in no event later than the Final Expiration Date, redeem all but not
less than all the then outstanding Rights at a redemption price of $.01 per
Right, as such amount may be appropriately adjusted to reflect any stock split,
stock dividend or similar transaction occurring after the date hereof (such
redemption price being the "Redemption Price"), and the Company may, at its
option, by action of a majority of the Independent Directors, pay the Redemption
Price either in shares of Company Common Stock (based on the "current market
price" as defined in Section 11(d), of the shares of Company Common Stock at the
time of redemption) or cash.


                                  Page 34 of 55

<PAGE>

               (b) Immediately upon the action of a majority of the Independent
Directors ordering the redemption of the Rights, evidence of which shall be
filed with the Rights Agent, and without any further action and without any
notice, the right to exercise the Rights will terminate and the only right
thereafter of the holders of Rights shall be to receive the Redemption Price for
each Right so held. Promptly after the action of a majority of the Independent
Directors ordering the redemption of the Rights, the Company shall give notice
of such redemption to the Rights Agent and the holders of the then outstanding
Rights by mailing such notice to all such holders at each holder's last address
as it appears upon the registry books of the Rights Agent or, prior to the
Distribution Date, on the registry books of the transfer agent for Company
Common Stock. Any notice that is mailed in the manner herein provided shall be
deemed given whether or not the holder receives the notice. Each such notice of
redemption will state the method by which the payment of the Redemption Price
will be made.

         SECTION 24. Notice of Certain Events.

               (a) In case the Company shall propose, at any time after the
Distribution Date, (i) to pay any dividend payable in stock of any class to the
holders of Preferred Stock or to make any other distribution to the holders of
Preferred Stock (other than a regular quarterly cash dividend out of earnings or
retained earnings of the Company), (ii) to offer to the holders of Preferred
Stock rights or warrants to subscribe for or to purchase any additional shares
of Preferred Stock or shares of stock of any class or any other securities,
rights or options, (iii) to effect any reclassification of its Preferred Stock
(other than a reclassification involving only the subdivision of outstanding
shares of Preferred Stock), (iv) to effect any consolidation or merger into or
with any other Person (other than a Subsidiary of the Company in a transaction
which complies with Section 11(o) hereof), or to effect any sale or other
transfer (or to permit one or more of its Subsidiaries to effect any sale or
other transfer), in one or more transactions, of more than 50% of the assets or
earning power of the Company and its Subsidiaries (taken as a whole) to any
other Person or Persons (other than the Company and/or any of its Subsidiaries
in one or more transactions each of which complies with Section 11(o) hereof),
or (v) to effect the liquidation, dissolution or winding up of the Company,
then, in each such case, the Company shall give to each holder of a Rights
Certificate, to the extent feasible and in accordance with Section 25, a notice
of such proposed action, which shall specify the record date for the purposes of
such stock dividend, distribution of rights or warrants, or the date on which
such reclassification, consolidation, merger, sale, transfer, liquidation,
dissolution, or winding up is to take place and the date of participation
therein by the holders of the shares of Preferred Stock, if any such date is to
be fixed, and such notice shall be so given in the case of any action covered by
clause (i) or (ii) above at least 20 days prior to the record date for
determining holders of the shares of Preferred Stock for purposes of such
action, and in the case of any such other action, at least 20 days prior to the
date of the taking of such proposed action or the date of participation therein
by the holders of the shares of Preferred Stock whichever shall be the earlier;
provided, however, that no such notice shall be required pursuant to this
Section 24, if any Subsidiary of the Company effects a consolidation or merger
with or into, or effects a sale or other transfer of assets or earnings power
to, any other Subsidiary of the Company.

               (b) In case any of the events set forth in Section 11(a)(ii)
shall occur, then, in any such case, (i) the Company shall as soon as
practicable thereafter give to each holder of a Rights Certificate, to the
extent feasible and in accordance with Section 25, a notice of the occurrence of
such event, which shall specify the event and the consequences of the event to
holders of Rights under Section 11(a)(ii).


                                  Page 35 of 55

<PAGE>

         SECTION 25. Notices. All notices and other communications provided for
hereunder shall, unless otherwise stated herein, be in writing (including by
telex, telegram or cable) and mailed or sent or delivered, if to the Company, at
its address at:

                           InterDigital Communications Corporation
                           781 Third Avenue
                           King of Prussia, PA  19406-1409
                           Attention:  General Counsel
                           Fax: (610) 992-9432

and if to the Rights Agent, at its address at:

                           American Stock Transfer and Trust Company
                           6201 15th Avenue
                           Brooklyn, NY  11219
                           Attention:  Carlos A. Pinto
                           Fax: (718) 921-8336

Notices to the Company and to the Rights Agent shall be deemed given upon
receipt. Notices or demands authorized by this Agreement to be given or made by
the Company or the Rights Agent to the holder of any Rights Certificate (or, if
prior to the Distribution Date, to the holder of certificates representing
shares of Company Common Stock) shall be sufficiently given or made if sent by
first-class mail, postage prepaid, addressed to such holder at the address of
such holder as shown on the registry books of the Company.

         SECTION 26. Supplements and Amendments. Prior to the Distribution Date
and subject to the penultimate sentence of this Section 26, the Company and the
Rights Agent shall, if the Company so directs, supplement or amend any provision
of this Agreement without the approval of any holders of certificates evidencing
shares of Company Common Stock. From and after the Distribution Date and subject
to the penultimate sentence of this Section 26, the Company and the Rights Agent
shall, if the Company so directs, supplement or amend this Agreement without the
approval of any holders of Rights Certificates in order (i) to cure any
ambiguity, (ii) to correct or supplement any provision contained herein that may
be defective or inconsistent with any other provisions herein, (iii) to shorten
or lengthen any time period hereunder, or (iv) to change or supplement the
provisions hereunder in any manner that the Company may deem necessary or
desirable and that shall not adversely affect the interests of the holders of
Rights Certificates (other than an Acquiring Person or an Affiliate or Associate
of an Acquiring Person); provided, however, that this Agreement may not be
supplemented or amended to lengthen, pursuant to clause (iii) of this sentence,
(A) subject to Section 30, a time period relating to when the Rights may be
redeemed at such time as the Rights are not then redeemable, or (B) any other
time period unless such lengthening is for the purpose of protecting, enhancing
or clarifying the rights of, and/or the benefits to the holders of Rights. Upon
the delivery of a certificate from an appropriate officer of the Company or, so
long as any Person is an Acquiring Person hereunder, from the majority of the
Independent Directors that states that the proposed supplement or amendment is
in compliance with the terms of this Section 26, the Rights Agent shall execute
such supplement or amendment, subject to the Right Agent's right to apply to
counsel chosen by the Right Agent and the Right Agent being reasonably assured
that such supplement or amendment is in no way detrimental to the Right Agent's
right or interest. Notwithstanding anything contained in this Agreement to the
contrary, no supplement or amendment shall be made that changes the Redemption
Price, the Purchase Price, the Expiration Date or the number of Units of
Preferred Stock for

                                  Page 36 of 55

<PAGE>

which a Right is exercisable without the approval of a majority of the
Independent Directors. Prior to the Distribution Date, the interests of the
holders of Rights shall be deemed coincident with the interests of the holders
of Company Common Stock.

         SECTION 27. Successors. All the covenants and provisions of this
Agreement by or for the benefit of the Company or the Rights Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.

         SECTION 28. Determinations and Actions by the Board of Directors, etc.
For all purposes of this Agreement, any calculation of the number of shares of
Company Common Stock outstanding at any particular time, including for purposes
of determining the particular percentage of such outstanding shares of Company
Common Stock of which any Person is the Beneficial Owner, shall be made in
accordance with the last sentence of Rule 13d-3(d)(1)(i) of the Exchange Act
Regulations as in effect on the date hereof. Except as otherwise specifically
provided herein, the Board of Directors of the Company shall have the exclusive
power and authority to administer this Agreement and to exercise all rights and
powers specifically granted to the Board or to the Company, or as may be
necessary or advisable in the administration of this Agreement, including,
without limitation, the right and power (i) to interpret the provisions of this
Agreement, and (ii) to make all determinations deemed necessary or advisable for
the administration of this Agreement. All such actions, calculations,
interpretations and determinations (including, for purposes of clause (y) below,
all omissions with respect to the foregoing) which are done or made by the Board
or by a majority of the Independent Directors in good faith shall (x) be final,
conclusive and binding on the Company, the Rights Agent, the holders of the
Rights and all other parties, and (y) not subject the Board or any member
thereof to any liability to the holders of the Rights.

         SECTION 29. Benefits of this Agreement. Nothing in this Agreement shall
be construed to give to any Person other than the Company, the Rights Agent and
the registered holders of the Rights Certificates (and, prior to the
Distribution Date, registered holders of shares of Company Common Stock) any
legal or equitable right, remedy or claim under this Agreement; but this
Agreement shall be for the sole and exclusive benefit of the Company, the Rights
Agent and the registered holders of the Rights Certificates (and, prior to the
Distribution Date, registered holders of shares of Company Common Stock).

         SECTION 30. Severability. If any term, provision, covenant or
restriction of this Agreement is held by a court of competent jurisdiction or
other authority to be invalid, void or unenforceable, the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected, impaired or invalidated;
provided, however, that notwithstanding anything in this Agreement to the
contrary, if any such term, provision, covenant or restriction is held by such
court or authority to be invalid, void or unenforceable and a majority of the
Independent Directors determines in its good faith judgment that severing the
invalid language from this Agreement would adversely affect the purpose or
effect of this Agreement and the Rights shall not then be redeemable, the right
of redemption set forth in Section 23 hereof shall be reinstated and shall not
expire until the Close of Business on the tenth Business Day following the date
of such determination by a majority of the Independent Directors.

         SECTION 31. Governing Law. This Agreement each Right and each Rights
Certificate issued hereunder shall be governed by, and construed in accordance
with, the laws of the Commonwealth of Pennsylvania applicable to contracts
executed in and to be performed entirely in such Commonwealth.


                                  Page 37 of 55

<PAGE>

         SECTION 32. Counterparts. This Agreement may be executed (including by
facsimile) in one or more counterparts and by the different parties hereto in
separate counterparts, each of which when executed shall be deemed to be an
original, but all of which taken together shall constitute one and the same
instrument.

         SECTION 33. Descriptive Headings. The headings contained in this
Agreement are for descriptive purposes only and shall not affect in any way the
meaning or interpretation of this Agreement.

         SECTION 34. Exchange.

               (a) The Company may at any time after the Distribution Date, upon
resolution of a majority of the Independent Directors, exchange all or part of
the then outstanding exercisable Rights (which shall not include Rights that
have become void pursuant to Section 7(e) hereof) for Units of Preferred Stock
at an exchange ratio specified in the following sentence, as appropriately
adjusted to reflect any stock split, stock dividend or similar transaction
occurring after the date hereof. Subject to such adjustment, upon such
resolution each Right may be exchanged for that number of Units of Preferred
Stock obtained by dividing the Adjustment Spread (as defined below) by the then
current market price (determined pursuant to Section 11(d) hereof) per Unit of
Preferred Stock on the earlier of (i) the date on which any Person becomes an
Acquiring Person and (ii) the date on which a tender or exchange offer by any
Person (other than the Company, any Subsidiary of the Company, any employee
benefit plan maintained by the Company or any of its Subsidiaries or any trustee
or fiduciary with respect to such plan acting in such capacity) is first
published or sent or given within the meaning of Rule 14d-4(a) of the Exchange
Act Regulations or any successor rule, if upon consummation thereof such Person
would be the Beneficial Owner of 15% or more of the shares of Company Common
Stock then outstanding (such exchange ratio being the "Exchange Ratio"). The
"Adjustment Spread" shall equal (x) the aggregate market price on the date of
such event of the number of Adjustment Shares determined pursuant to Section
11(a)(ii), minus (y) the Purchase Price.

               (b) Immediately upon the action of a majority of the Independent
Directors ordering the exchange of any Rights pursuant to Section 34(a) and
without any further action and without any notice, the right to exercise such
Rights shall terminate and the only right thereafter of a holder of such Rights
shall be to receive that number of Units of Preferred Stock equal to the number
of such Rights held by such holder multiplied by the Exchange Ratio. The Company
shall promptly give public notice of any such exchange; provided, however, that
the failure to give, or any defect in, such notice shall not affect the validity
of such exchange. The Company promptly shall mail a notice of any such exchange
to all the holders of such Rights at their last addresses as they appear upon
the registry books of the Rights Agent. Any notice which is mailed in the manner
herein provided shall be deemed given, whether or not the holder receives the
notice. Each such notice of exchange shall state the method by which the
exchange of Units of Preferred Stock for Rights will be effected and, in the
event of any partial exchange, the number of Rights which will be exchanged. Any
partial exchange shall be effected pro rata based on the number of Rights (other
than Rights which have become void pursuant to the provisions of Section 7(e)
hereof) held by each holder of Rights.

               (c) In the event that the number of shares of Preferred Stock
that are authorized by the Company's Certificate of Incorporation but not
outstanding or reserved for issuance for purposes other than upon exercise of
the Rights are not sufficient to permit any exchange of Rights as contemplated
in accordance with this Section 34, the Company shall take all such action as
may be

                                  Page 38 of 55

<PAGE>

necessary to authorize additional shares of Preferred Stock for issuance upon
exchange of the Rights or make adequate provision to substitute (1) cash, (2)
Company Common Stock or other equity securities of the Company, (3) debt
securities of the Company, (4) other assets, or (5) any combination of the
foregoing, having an aggregate value equal to the Adjustment Spread, where such
aggregate value has been determined by a majority of the Independent Directors.

               (d) The Company shall not be required to issue fractions of Units
of Preferred Stock or to distribute certificates that evidence fractional Units.
In lieu of fractional Units, the Company may pay to the registered holders of
Rights Certificates at the time such Rights are exchanged as herein provided an
amount in cash equal to the same fraction of the current market price
(determined pursuant to Section 11(d) hereof) of one Unit of Preferred Stock.


         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed, all as of the date first above written.


ATTEST:                                    INTERDIGITAL COMMUNICATIONS
                                                CORPORATION


By:       /s/  JANE S. SCHULTZ             By:       /s/  WILLIAM A. DOYLE
         ---------------------------                -------------------------
         Jane S. Schultz                            William A. Doyle
         Assistant Secretary                        President





ATTEST:                                    AMERICAN STOCK TRANSFER AND
                                                TRUST COMPANY


By:       /s/  CARLOS A. PINTO             By:       /s/  HERBERT J. LEMMER
         ---------------------------                -------------------------
         Carlos A. Pinto                            Herbert J. Lemmer
         Vice President                             Senior Vice President and
                                                       General Counsel


                                  Page 39 of 55

<PAGE>

                                                                      EXHIBIT A


                           Form of Rights Certificate


Certificate No. R-______                                      __________ Rights


NOT EXERCISABLE AFTER THE EXPIRATION DATE (AS DEFINED IN THE RIGHTS AGREEMENT
REFERRED TO BELOW). THE RIGHTS ARE SUBJECT TO REDEMPTION, AT THE OPTION OF THE
COMPANY, ON THE TERMS SET FORTH IN THE RIGHTS AGREEMENT. UNDER CERTAIN
CIRCUMSTANCES (SPECIFIED IN THE RIGHTS AGREEMENT), RIGHTS BENEFICIALLY OWNED BY
ACQUIRING PERSONS (AS DEFINED IN THE RIGHTS AGREEMENT) OR ANY SUBSEQUENT HOLDER
OF SUCH RIGHTS MAY BECOME NULL AND VOID. [THE RIGHTS REPRESENTED BY THIS RIGHTS
CERTIFICATE ARE OR WERE BENEFICIALLY OWNED BY A PERSON WHO WAS OR BECAME AN
ACQUIRING PERSON OR AN AFFILIATE OR ASSOCIATE OF AN ACQUIRING PERSON (AS SUCH
TERMS ARE DEFINED IN THE RIGHTS AGREEMENT REFERRED TO BELOW). ACCORDINGLY, THIS
RIGHTS CERTIFICATE AND THE RIGHTS REPRESENTED HEREBY MAY BECOME NULL AND VOID IN
THE CIRCUMSTANCES SPECIFIED IN SECTION 7(e) OF THE RIGHTS AGREEMENT.]1

                               Rights Certificate

                     INTERDIGITAL COMMUNICATIONS CORPORATION

         This certifies that _____________________, or registered assigns, is
the registered holder of the number of Rights set forth above, each of which
entitles the registered holder thereof, subject to the terms and conditions of
the Rights Agreement dated as of December 31, 1996 (the "Rights Agreement";
terms defined therein are used herein with the same meaning unless otherwise
defined herein) between INTERDIGITAL COMMUNICATIONS CORPORATION, a Pennsylvania
corporation (the "Company"), and American Stock Transfer and Trust Company, a
New York corporation, as Rights Agent (which term shall include any successor
Rights Agent under the Rights Agreement), to purchase from the Company at any
time after the Distribution Date and prior to the Expiration Date at the office
of the Rights Agent, one one-thousandth of one fully paid and nonassessable
share of Series B Junior Participating Preferred Stock (the "Preferred Stock"),
of the Company at the Purchase Price initially of $45.00 per one one-thousandth
share (each such one one-thousandth of a share being a "Unit") of Preferred
Stock, upon presentation and surrender of this Rights Certificate with the
Election to Purchase and related certificate duly executed. The number of Rights
evidenced by this Rights Certificate (and the number of Units that may be
purchased upon exercise thereof) set forth above, and the Purchase Price per
Unit set forth above shall be subject to adjustment in certain events as
provided in the Rights Agreement.

         Upon the occurrence of a Section 11(a)(ii) Event, if the Rights
evidenced by this Rights Certificate are beneficially owned by an Acquiring
Person or an Affiliate or Associate of any such

- --------

1 The portion of the legend in brackets shall be inserted only if applicable and
  shall replace the preceding sentence.

                                  Page 40 of 55

<PAGE>

Acquiring Person or, under certain circumstances described in the Rights
Agreement, a transferee of any such Acquiring Person, Associate or Affiliate,
such Rights shall become null and void and no holder hereof shall have any right
with respect to such Rights from and after the occurrence of such Section
11(a)(ii) Event.

         In certain circumstances described in the Rights Agreement, the rights
evidenced hereby may entitle the registered holder thereof to purchase capital
stock of an entity other than the Company or receive common stock, cash or other
assets, all as provided in the Rights Agreement.

         This Rights Certificate is subject to all the terms and conditions of
the Rights Agreement, which terms and conditions are hereby incorporated herein
by reference and made a part hereof and to which Rights Agreement reference is
hereby made for a full description of the rights, limitations of rights,
obligations, duties and immunities hereunder of the Rights Agent, the Company
and the holders of the Rights Certificates. Copies of the Rights Agreement are
on file at the principal office of the Company and are available from the
Company upon written request.

         This Rights Certificate, with or without other Rights Certificates,
upon surrender at the office of the Rights Agent designated for such purpose,
may be exchanged for another Rights Certificate or Rights Certificates of like
tenor and date evidencing an aggregate number of Rights equal to the aggregate
number of Rights evidenced by the Rights Certificate or Rights Certificates
surrendered. If this Rights Certificate shall be exercised in part, the
registered holder shall be entitled to receive, upon surrender hereof, another
Rights Certificate or Rights Certificates for the number of whole Rights not
exercised.

         Subject to the provisions of the Rights Agreement, the Rights evidenced
by this Certificate may be redeemed by the Company under certain circumstances
at its option at a redemption price of $.01 per Right, payable at the Company's
option in cash or in common stock of the Company, subject to adjustment in
certain events as provided in the Rights Agreement.

         No fractional shares of Preferred Stock will be issued upon the
exercise of any Right or Rights evidenced hereby (other than fractions which are
integral multiples of one one-thousandth of a share of Preferred Stock), but in
lieu thereof a cash payment will be made, as provided in the Rights Agreement.

         No holder of this Rights Certificate, as such, shall he entitled to
vote or receive dividends or be deemed for any purpose the holder of Preferred
Stock or of any other securities which may at any time be issuable on the
exercise hereof, nor shall anything contained in the Rights Agreement or herein
be constituted to confer upon the holder hereof, as such, any of the rights of a
shareholder of the Company or any right to vote for the election of directors or
upon any matter submitted to shareholders at any meeting thereof, or to give or
withhold consent to any corporate action, or to receive notice of meetings or
other actions affecting shareholders (except as provided in the Rights
Agreement), or to receive dividends or subscription rights, or otherwise, until
the Rights evidenced by this Rights Certificate shall have been exercised as
provided in the Rights Agreement.

         This Rights Certificate shall not be valid or obligatory for any
purpose until it shall have been countersigned by the Rights Agent.

                                  Page 41 of 55

<PAGE>

         WITNESS the facsimile signature of the proper officers of the Company
and its corporate seal. Dated as of ____________ ___, 199_/200_.

ATTEST:                                         INTERDIGITAL COMMUNICATIONS
CORPORATION


By:      ______________________________         By:      _____________________
         Name:                                           Name:
         Title:                                          Title:


Countersigned:

AMERICAN STOCK TRANSFER AND TRUST COMPANY
as Rights Agent


By:      ______________________________
         Name:
         Title:


                                  Page 42 of 55

<PAGE>

                  [Form of Reverse Side of Rights Certificate]

                               FORM OF ASSIGNMENT


                   (To be executed by the registered holder if
                       such holder desires to transfer the
                               Rights Certificate)


FOR VALUE RECEIVED                     hereby sells, assigns and transfers unto
                   -------------------

- ----------------------------------------------------------------

         (Please print name and address of transferee)

- ----------------------------------------------------------------
this Rights Certificate, together with all right, title and interest therein,
and does hereby irrevocably constitute and appoint __________ Attorney, to
transfer the within Rights Certificate on the books of the within-named Company,
with full power of substitution.

Dated:              , 199 /200 
        --------- --     -    -

                                              ----------------------------
                                              Signature

Signature Guaranteed:


                                  Page 43 of 55

<PAGE>

                                   Certificate

         The undersigned hereby certifies by checking the appropriate boxes
that:

         (1) this Rights Certificate |_| is |_| is not being sold, assigned and
transferred by or on behalf of a Person who is or was an Acquiring Person or an
Affiliate or Associate of any such Acquiring Person (as such terms are defined
pursuant to the Rights Agreement); and

         (2) after due inquiry and to the best knowledge of the undersigned, it
|_| did |_| did not acquire the Rights evidenced by this Rights Certificate from
any Person who is, was or subsequently became an Acquiring Person or an
Affiliate or Associate of an Acquiring Person.


Dated:              , 199 /200  
        --------- --     -    -

                                              ----------------------------
                                                                 Signature

Signature Guaranteed:

                         -------------------------------

                                     NOTICE

         The signature to the foregoing Assignment and Certificate must
correspond to the name as written upon the face of this Rights Certificate in
every particular, without alteration or enlargement or any change whatsoever.

         Signatures must be guaranteed by a member in the Securities Transfer
Agents Medallion Program, the Stock Exchange Medallion Program or the New York
Stock Exchange Medallion Program.

         In the event the certification set forth above is not completed, the
Company will deem the beneficial owner of the Rights evidenced by this Rights
Certificate to be an Acquiring Person or an Affiliate or Associate thereof (as
defined in the Rights Agreement) and, in the case of an Assignment, will affix a
legend to that effect on any Rights Certificates issued in exchange for this
Rights Certificate.



                                  Page 44 of 55

<PAGE>

                          FORM OF ELECTION TO PURCHASE

                    (To be executed if the registered holder
                     desires to exercise Rights represented
                           by the Rights Certificate.)


To: INTERDIGITAL COMMUNICATIONS CORPORATION

         The undersigned hereby irrevocably elects to exercise _________ Rights
represented by this Rights Certificate to purchase the Units of Preferred Stock
issuable upon the exercise of the Rights (or such other securities of the
Company or of any other person or other property which may be issuable upon the
exercise of the Rights) and requests that certificates for such Units be issued
in the name of and delivered to:


- -------------------------------
(Please print name and address)

- -------------------------------

Please insert social security
or other identifying number: 
                             -------------- 

         If such number of Rights shall not be all the Rights evidenced by this
Rights Certificate, a new Rights Certificate for the balance of such Rights
shall he registered in the name of and delivered to:


- -------------------------------
(Please print name and address)

- -------------------------------

Please insert social security
or other identifying number:
                              --------------

                                                 -------------------------
                                                 Signature

Signature Guaranteed:


                                  Page 45 of 55

<PAGE>

                                   Certificate

         The undersigned hereby certifies by checking the appropriate boxes
that:

         (1) the Rights evidenced by this Rights Certificate |_| are |_| are not
beneficially owned by an Acquiring Person or an Affiliate or an Associate
thereof (as defined in the Rights Agreement); and

         (2) after due inquiry and to the best knowledge of the undersigned, the
undersigned |_| did |_| did not acquire the Rights evidenced by this Rights
Certificate from any person who is, was or subsequently became an Acquiring
Person or an Affiliate or Associate thereof.


Dated:              , 199 /200  
        --------- --     -    -

                                            ----------------------------  
                                            Signature


Signature Guaranteed:

                            ------------------------

                                     NOTICE

         The signature in the foregoing Election to Purchase and Certificate
must conform to the name as written upon the face of this Rights Certificate in
every particular, without alteration or enlargement or any change whatsoever.

         Signatures must be guaranteed by a member in the Securities Transfer
Agents Medallion Program, the Stock Exchange Medallion Program or the New York
Stock Exchange Medallion Program.

         In the event the certification set forth above is not completed, the
Company will deem the beneficial owner of the Rights evidenced by this Rights
Certificate to be an Acquiring Person or an Affiliate or Associate thereof (as
defined in the Rights Agreement) and, in the case of an Assignment, will affix a
legend to that effect on any Rights Certificates issued in exchange for this
Rights Certificate.

                                  Page 46 of 55

<PAGE>

                                                                       EXHIBIT B


                 DESIGNATION OF THE VOTING POWERS, DESIGNATIONS
                    PREFERENCES AND RELATIVE, PARTICIPATING,
              OPTIONAL OR OTHER SPECIAL RIGHTS AND QUALIFICATIONS,
                       LIMITATIONS AND RESTRICTIONS OF THE
                  SERIES B JUNIOR PARTICIPATING PREFERRED STOCK

                        --------------------------------

                         Pursuant to Section 1522 of the
                           Business Corporation Law of
                        the Commonwealth of Pennsylvania

                        --------------------------------


         I, _________________________, [President] of Interdigital
Communications Corporation, a corporation organized and existing under the
Business Corporation Law of the Commonwealth of Pennsylvania (the
"Corporation"), DO HEREBY CERTIFY:

         that, pursuant to authority conferred upon the Board of Directors of
the Corporation by its Articles of Incorporation (the "Articles"), and, pursuant
to the provisions of Section 1522 of the Business Corporation Law of the
Commonwealth of Pennsylvania, such Board of Directors, at a duly called meeting
held on December 13, 1996, at which a quorum was present and acted throughout,
adopted the following resolutions, which resolutions remain in full force and
effect on the date hereof creating a series of 90,000 shares of Preferred Stock
designated as Series B Junior Participating Preferred Stock (the "Series B
Preferred Stock") out of the class of 14,398,600 shares of preferred stock (the
"Preferred Stock"):

         RESOLVED, that in order to effect the Rights Plan and pursuant to the
authority vested in the Board of Directors in accordance with the provisions of
the Articles, the Board of Directors does hereby create, authorize and provide
for the issuance of the Series B Preferred Stock having the voting powers,
designation, relative, participating, optional and other special rights,
preferences, and qualifications, limitations and restrictions thereof that are
set forth as follows:

         Section 1. Designation and Amount. The shares of such series shall be
designated as "Series B Junior Participating Preferred Stock" and the number of
shares constituting such series shall be 90,000.

         Section 2. Dividends and Distributions.

               (A) Subject to the prior and superior rights of the holders of
any shares of any other series of Preferred Stock or any other shares of
preferred stock of the Corporation ranking prior and superior to the shares of
Series B Preferred Stock with respect to dividends, each holder of one
one-thousandth (1/1000) of a share (a "Unit") of Series B Preferred Stock shall
be entitled to receive, when, as and if declared by the Board of Directors out
of funds legally available for that purpose, (i) dividends payable in cash when

                                  Page 47 of 55

<PAGE>

and if declared by the Board of Directors of the Corporation in respect of the
Common Stock (each such date being a "Dividend Payment Date") commencing on the
first Dividend Payment Date after the first issuance of such Unit of Series B
Preferred Stock, in an amount per Unit (rounded to the nearest cent) equal to,
subject to the provision for adjustment hereinafter set forth, the aggregate per
share amount of all cash dividends declared on shares of the Common Stock since
the immediately preceding Dividend Payment Date, or, with respect to the first
Dividend Payment Date, since the first issuance of a Unit of Series B Preferred
Stock, and (ii) subject to the provision for adjustment hereinafter set forth,
distributions (payable in kind) on each Dividend Payment Date in an amount per
Unit equal to the aggregate per share amount of all noncash dividends or other
distributions (other than a dividend payable in shares of Common Stock or a
subdivision of the outstanding shares of Common Stock, by reclassification or
otherwise) declared on shares of common stock since the immediately preceding
Dividend Payment Date, or with respect to the first Dividend Payment Date, since
the first issuance of a Unit of Series B Preferred Stock. In the event that the
Corporation shall at any time after December 13, 1996 (the "Rights Declaration
Date"), (i) declare any dividend on outstanding shares of Common Stock payable
in shares of common stock, (ii) subdivide outstanding shares of Common Stock or
(iii) combine outstanding shares of Common Stock into a smaller number of
shares, then in each such case the amount to which the holder of a Unit of
Series B Preferred Stock was entitled immediately prior to such event pursuant
to the next preceding sentence shall be adjusted by multiplying such amount by a
fraction the numerator of which shall be the number of shares of Common Stock
that are outstanding immediately after such event and the denominator of which
shall be the number of shares of Common Stock that were outstanding immediately
prior to such event.

               (B) The Corporation shall declare a dividend or distribution on
Units of Series B Preferred Stock as provided in paragraph (A) above immediately
after it declares a dividend or distribution on the shares of Common Stock
(other than a dividend payable in shares of Common Stock).

         Section 3. Voting Rights.

               The holders of Units of Series B Preferred Stock shall have the
following voting rights:

               (A) Subject to the provision for adjustment hereinafter set
forth, each Unit of Series B Preferred Stock shall entitle the holder thereof to
one vote on all matters submitted to a vote of the holders of Common Stock of
the Corporation. In the event the Corporation shall at any time after the Rights
Declaration Date (i) declare any dividend on outstanding shares of Common Stock
payable in shares of Common Stock, (ii) subdivide outstanding shares of Common
Stock or (iii) combine the outstanding shares of Common Stock into a smaller
number of shares, then in each such case the number of votes per Unit to which
holders of Units of Series B Preferred Stock were entitled immediately prior to
such event shall be adjusted by multiplying such number by a fraction the
numerator of which shall be the number of shares of Common Stock outstanding
immediately after such event and the denominator of which shall be the number of
shares of Common Stock that were outstanding immediately prior to such event.

               (B) Except as otherwise provided herein or by law, the holders of
Units of Series B Preferred Stock and the holders of shares of Common Stock
shall vote together as one class on all matters submitted to a vote of holders
of Common Stock of the Corporation.


                                  Page 48 of 55

<PAGE>




               (C) Except as set forth herein, holders of Units of Series A
Preferred Stock shall have no special voting rights and their consents shall not
be required (except to the extent they are entitled to vote with holders of
shares of Common Stock as set forth herein) for taking any corporate action.

         Section 4. Certain Restrictions.

               (A) Whenever any dividends or distributions payable, on Units of
Series B Preferred Stock as provided in Section 2 have not been paid in full,
thereafter and until all such accrued and unpaid dividends and distributions,
whether or not declared, on outstanding Units of Series B Preferred Stock shall
have been paid in full, the Corporation shall not:

               (i) declare or pay dividends on, make any other distributions on,
or redeem or repurchase or otherwise acquire for consideration, any shares of
junior stock;

               (ii) declare or pay dividends on or make any other distributions
on any shares of parity stock, except dividends paid ratably on Units of Series
B Preferred Stock and shares of all such parity stock on which dividends are
payable or in arrears in proportion to the total amounts to which the holders of
such Units and all such shares are then entitled;

               (iii) redeem or repurchase or otherwise acquire for consideration
shares of any parity stock; provided, however, that the Corporation may at any
time redeem, repurchase or otherwise acquire shares of any such parity stock in
exchange for shares of any junior stock;

               (iv) repurchase or otherwise acquire for consideration (other
than shares of junior stock) any Units of Series B Preferred Stock, except in
accordance with a repurchase offer made in writing or by publication (as
determined by the Board of Directors) to all holders of such Units on the same
terms.

               (B) The Corporation shall not permit any subsidiary of the
Corporation to purchase or otherwise acquire for consideration any shares of
stock of the Corporation unless the Corporation could, under paragraph (A) of
this Section 4, repurchase or otherwise acquire such shares at such time and in
such manner.

         Section 5. Reacquired Shares. Any Units of Series B Preferred Stock
purchased or otherwise acquired by the Corporation in any manner whatsoever
shall be retired and canceled promptly after the acquisition thereof. All such
Units shall, upon their cancellation, become authorized but unissued Units of
Preferred Stock and may be reissued as part of a new series of Preferred Stock
to be created by resolution or resolutions of the Board of Directors, subject to
the conditions and restrictions on issuance set forth herein.

         Section 6. Liquidation, Dissolution or Winding Up.

               (A) Upon any voluntary or involuntary liquidation, dissolution or
winding up of the Corporation, no distribution shall be made (i) to the holders
of shares of junior stock unless the holders of Units of Series B Preferred
Stock shall have received, subject to adjustment as hereinafter provided in
paragraph (B), the amount, per Unit, equal to the aggregate per share amount to
be distributed to holders of shares of common stock, or (ii) to the holders of
shares of parity stock, unless simultaneously therewith distributions are made
ratably on Units of Series B Preferred Stock and all other shares of such parity
stock in proportion to the total amounts to which the holders of Units of Series
B Preferred Stock are entitled under

                                  Page 49 of 55

<PAGE>

clause (i) of this sentence and to which the holders of shares of such parity
stock are entitled, in each case upon such liquidation, dissolution or winding
up.

               (B) In the event the Corporation shall at any time after the
Rights Declaration Date (i) declare any dividend on outstanding shares of Common
Stock payable in shares of Common Stock, (ii) subdivide outstanding shares of
Common Stock, or (iii) combine outstanding shares of Common Stock into a smaller
number of shares, then in each such case the aggregate amount to which holders
of Units of Series B Preferred Stock were entitled immediately prior to such
event pursuant to clause (i)(b) of paragraph (A) of this Section 6 shall be
adjusted by multiplying such amount by a fraction the numerator of which shall
be the number of shares of Common Stock that are outstanding immediately after
such event and the denominator of which shall be the number of shares of Common
Stock that were outstanding immediately prior to such event.

               Section 7. Consolidation, Merger, etc. In case the Corporation
shall enter into any consolidation, merger, combination or other transaction in
which the shares of Common Stock are exchanged for or converted into other stock
or securities, cash and/or any other property, then in any such case Units of
Series B Preferred Stock shall at the same time be similarly exchanged for or
converted into an amount per Unit (subject to the provision for adjustment
hereinafter set forth) equal to the aggregate amount of stock, securities, cash
and/or any other property (payable in kind), as the case may be, into which or
for which each share of Common Stock is converted or exchanged. In the event the
Corporation shall at any time after the Rights Declaration Date (i) declare any
dividend on outstanding shares of Common Stock payable in shares of Common
Stock, (ii) subdivide outstanding shares of Common Stock, or (iii) combine
outstanding Common Stock into a smaller number of shares, then in each such case
the amount set forth in the immediately preceding sentence with respect to the
exchange or conversion of Units of Series B Preferred Stock shall be adjusted by
multiplying such amount by a fraction the numerator of which shall be the number
of shares of Common Stock that are outstanding immediately after such event and
the denominator of which shall be the number of shares of Common Stock that were
outstanding immediately prior to such event.

               Section 8. Redemption. The Units of Series B Preferred Stock
shall not be redeemable.

               Section 9. Ranking. The Units of Series B Preferred Stock shall
rank junior to all other series of the Preferred Stock and to any other class of
preferred stock that hereafter may be issued by the Corporation as to the
payment of dividends and the distribution of assets, unless the terms of any
such series or class shall provide otherwise.

               Section 10. Amendment. The Articles, including, without
limitation, this resolution, shall not hereafter be amended, either directly or
indirectly, or through merger or consolidation with another corporation in any
manner that would alter or change the powers, preferences or special rights of
the Series B Preferred Stock so as to affect them adversely without the
affirmative vote of the holders of a majority or more of the outstanding Units
of Series B Preferred Stock, voting separately as a class.

                  Section 11. Fractional Shares. The Series B Preferred Stock
may be issued in Units or other fractions of a share, which Units or fractions
shall entitle the holder, in proportion to such holder's fractional shares, to
exercise voting rights, receive dividends, participate in distributions and to
have the benefit of all other rights of holders of Series B Preferred Stock.


                                  Page 50 of 55

<PAGE>

         Section 12. Certain Definitions. As used herein with respect to the
Series B Preferred Stock, the following terms shall have the following meanings:

               (A) The term "Common Stock" means the class of common stock
designated as the Common Stock, par value $.01 per share, of the Corporation at
the date hereof or any other class of stock resulting from successive changes or
reclassification of the common stock.

               (B) The term "junior stock" (i) as used in Section 4 means the
common stock and any other class or series of capital stock of the Corporation
hereafter authorized or issued over which the Series B Preferred Stock has
preference or priority as to the payment of dividends and (ii) as used in
Section 6, shall mean the common stock and any other class or series of capital
stock of the Corporation over which the Series B Preferred Stock has preference
or priority in the distribution of assets on any liquidation, dissolution or
winding up of the Corporation.

               (C) The term "parity stock" (i) as used in Section 4, means any
class or series of stock of the Corporation hereafter authorized or issued
ranking pari passu with the Series B Preferred Stock as to dividends and (ii) as
used in Section 6, shall mean any class or series of capital stock ranking pari
passu with the Series B Preferred Stock in the distribution of assets on any
liquidation, dissolution or winding up.


         IN WITNESS WHEREOF, Interdigital Communications Corporation has caused
this Certificate to be signed by its [President], and attested by its
[Assistant] Secretary as of the _____ day of December, 1996.


                                       INTERDIGITAL COMMUNICATIONS CORPORATION


                                       By:      _______________________________
                                                [name, title]


Attest:


By:    _______________________
         [name, title]

                                  Page 51 of 55

<PAGE>

                                                                      EXHIBIT C

                          SUMMARY OF RIGHTS TO PURCHASE
                                 PREFERRED STOCK


         On December 13, 1996, the Board of Directors of InterDigital
Communications Corporation, a Pennsylvania corporation (the "Company"), declared
a distribution of one Right (as defined below) for each outstanding share of
Common Stock, par value $.01 per share (the "Company Common Stock") to
shareholders of record at the close of business on January 3, 1997 (the "Record
Date") and for each share of Company Common Stock issued (including shares
distributed from Treasury) by the Company thereafter and prior to the
Distribution Date. Each Right entitles the registered holder, subject to the
terms of the Rights Agreement (as defined below), to purchase from the Company
one one-thousandth of a share (a "Unit") of Series B Junior Participating
Preferred Stock (the "Preferred Stock"), at a Purchase Price of $45.00 per Unit,
subject to adjustment (the "Right"). The Purchase Price is payable in cash or by
certified or bank check or money order payable to the order of the Company. The
description and terms of the Rights are set forth in a Rights Agreement between
the Company and American Stock Transfer and Trust Company, as Rights Agent (the
"Rights Agreement").

         Copies of the Rights Agreement and the Certificate of Designation for
the Preferred Stock have been filed with the Securities and Exchange Commission
as exhibits to a Registration Statement on Form 8-A dated January 2, 1997 (the
"Form 8-A"). Copies of the Rights Agreement and the Certificate of Designation
are available free of charge from the Company. This summary description of the
Rights and the Preferred Stock does not purport to be complete and is qualified
in its entirety by reference to all the provisions of the Rights Agreement and
the Certificate of Designation, including the definitions therein of certain
terms, which Rights Agreement and Certificate of Designation are incorporated
herein by reference.

The Rights Agreement

         Initially, the Rights will attach to all certificates representing
shares of outstanding Company Common Stock, and no separate Rights Certificates
will be distributed. The Rights will separate from the Company Common Stock and
the "Distribution Date" will occur upon (i) the earlier of (A) 10 business days
following the date of a public announcement (the date of such announcement being
the "Stock Acquisition Date") that a person or group of affiliated or associated
persons (other than the Company, any subsidiary of the Company or any employee
benefit plan of the Company or such subsidiary) (an "Acquiring Person") has
acquired, obtained the right to acquire, or otherwise obtained beneficial
ownership of 15% or more of the then outstanding shares of Company Common Stock,
and (B) 10 business days following the commencement of a tender offer or
exchange offer that would result in a person or group beneficially owning 15% or
more of the then outstanding shares of Company Common Stock, or (ii) such later
date as may be determined by action of a majority of the Independent Directors
of the Board prior to the occurrence of either event specified in (i) above. The
determination of beneficial ownership under the Rights Agreement generally
exclude options to purchase shares and shares acquired from the Company pursuant
to stock-based plans for employees and directors. Until the Distribution Date,
(x) the Rights will be evidenced by Company Common Stock certificates and will
be transferred with and only with such Company Common Stock certificates, (y)
new Company Common Stock certificates issued after the Record Date (also
including shares distributed from Treasury) will contain a notation
incorporating the Rights Agreement by reference, and (z) the surrender for
transfer of any certificates representing outstanding Company Common Stock will
also constitute the transfer of the Rights associated with the Company Common
Stock represented by such certificates.

                                  Page 52 of 55

<PAGE>

         The Rights are not exercisable until the Distribution Date and will
expire at the close of business on the tenth anniversary of the Rights Agreement
unless earlier redeemed by the Company as described below.

         As soon as practicable after the Distribution Date, Rights Certificates
will be mailed to holders of record of Company Common Stock as of the close of
business on the Distribution Date and, thereafter, the separate Rights
Certificates alone will represent the Rights.

         In the event that (i) the Company is the surviving corporation in a
merger with an Acquiring Person and shares of Company Common Stock shall remain
outstanding, (ii) a Person becomes the beneficial owner of 15% or more of the
then outstanding shares of Company Common Stock, (iii) an Acquiring Person
engages in one or more "self-dealing" transactions as set forth in the Rights
Agreement, or (iv) during such time as there is an Acquiring Person, an event
occurs which results in such Acquiring Person's ownership interest in the
Company Common Stock being increased by more than 1% (e.g., by means of a
reverse stock split or recapitalization), then, in each such case, each holder
of a Right will thereafter have the right to receive, upon exercise, Units of
Preferred Stock (or, in certain circumstances, Company Common Stock, cash,
property or other securities of the Company) having a current market value equal
to two times the exercise price of the Right. The exercise price is the Purchase
Price multiplied by the number of Units of Preferred Stock issuable upon
exercise of a Right prior to the events described in this paragraph.
Notwithstanding any of the foregoing, following the occurrence of any of the
events set forth in this paragraph, all Rights that are, or (under certain
circumstances specified in the Rights Agreement) were, beneficially owned by any
Acquiring Person will be null and void.

         In the event that, at any time following the Stock Acquisition Date,
(i) the Company is acquired in a merger or other business combination
transaction and the Company is not the surviving corporation (other than a
merger described in the preceding paragraph), (ii) any Person consolidates or
merges with the Company and all or part of the Company Common Stock is converted
or exchanged for securities, cash or property of any other Person, or (iii) 50%
or more of the Company's assets or earning power is sold or transferred, each
holder of a Right (except Rights which previously have been voided as described
above) shall thereafter have the right to receive, upon exercise, common stock
of the Acquiring Person having a current market value equal to two times the
exercise price of the Right.

         The Purchase Price payable, and the number of Units of Preferred Stock
issuable, upon exercise of the Rights are subject to adjustment from time to
time to prevent dilution (i) in the event of a stock dividend on, or a
subdivision, combination or reclassification of, the Preferred Stock, (ii) if
holders of the Preferred Stock are granted certain rights or warrants to
subscribe for Preferred Stock or convertible securities at less than the current
market price of the Preferred Stock, or (iii) upon the distribution to the
holders of the Preferred Stock of evidences of indebtedness, cash or assets
(excluding regular cash dividends, if any) or of subscription rights or warrants
(other than those referred to above).

         With certain exceptions, no adjustment in the Purchase Price will be
required until cumulative adjustments amount to at least 1% of the Purchase
Price. The Company is not required to issue fractional Units. In lieu thereof,
an adjustment in cash may be made based on the market price of the Preferred
Stock prior to the date of exercise.

         A majority of the Independent Directors may redeem the Rights in whole,
but not in part, until (i) ten business days following the Stock Acquisition
Date, or (ii) such later date as they shall determine, at a price of $.01 per
Right (subject to adjustment in certain events) (the "Redemption Price"),
payable, at the election of such majority of the Independent Directors, in cash
or shares of Company

                                  Page 53 of 55

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Common Stock. Immediately upon the action of a majority of the Independent
Directors ordering the redemption of the Rights, the Rights will terminate and
the only right of the holders of Rights will be to receive the Redemption Price.

         Until a Right is exercised, the holder thereof, as such, will have no
rights as a shareholder of the Company, including, without limitation, the right
to vote or to receive dividends. While the distribution of the Rights will not
be taxable to shareholders or to the Company, shareholders may, depending upon
the circumstances, recognize taxable income in the event that the Rights become
exercisable for Units of Preferred Stock (or other consideration).

         Any of the provisions of the Rights Agreement may be amended without
the approval of the holders of Company Common Stock at any time prior to the
Distribution Date. After the Distribution Date, the provisions of the Rights
Agreement may be amended in order to cure any ambiguity, defect or
inconsistency, to make changes which do not adversely affect the interests of
holders of Rights (excluding the interests of any Acquiring Person), or to
shorten or lengthen any time period under the Rights Agreement; provided,
however, that no amendment to adjust the time period governing redemption shall
be made at such time as the Rights are not redeemable.

Description of Preferred Stock

         The Units of Preferred Stock that may be acquired upon exercise of the
Rights will be nonredeemable and subordinate to any other shares of preferred
stock that may be issued by the Company.

         Each Unit of Preferred Stock will be entitled to dividends at the same
rate per share as dividends declared on the Company Common Stock and shall be
entitled to payment of dividends to the extent dividends are declared on the
Company Common Stock. In the event of liquidation, the holder of a Unit of
Preferred Stock will receive the per share amount paid in respect of a share of
Company Common Stock.

         In the event of any merger, consolidation or other transaction in which
shares of Company Common Stock are exchanged, each Unit of Preferred Stock will
be entitled to receive the per share amount paid in respect of each share of
Company Common Stock. Each Unit of Preferred Stock will have one vote, voting
together with the Company Common Stock. The rights of holders of the Preferred
Stock to dividends, liquidation and voting, and in the event of mergers and
consolidations, are protected by customary anti-dilution provisions.

         Because of the nature of the Preferred Stock's dividend, liquidation
and voting rights, the economic value of one Unit of Preferred Stock that may be
acquired upon the exercise of each Right should approximate the economic value
of one share of the Common Stock.


                                  Page 54 of 55

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                                                                      EXHIBIT 2


Form of Legend:


         "This certificate also evidences and entitles the holder hereof to
         certain Rights as set forth in the Rights Agreement between
         InterDigital Communications Corporation (the "Company") and American
         Stock Transfer and Trust Company (the "Rights Agent") dated as of
         December 31, 1996 (the "Rights Agreement), the terms of which are
         hereby incorporated herein by reference and a copy of which is on file
         at the principal office of the stock transfer administration office of
         the Rights Agent. Under certain circumstances; as set forth in the
         Rights Agreement, such Rights will be evidenced by separate
         certificates and will no longer be evidenced by this certificate. The
         Company will mail to the holder of this certificate a copy of the
         Rights Agreement, as in effect on the date of mailing, without charge
         promptly after receipt of a written request therefor. Under certain
         circumstances set forth in the Rights Agreement, Rights issued to, or
         held by, any Person who is, was or becomes an Acquiring Person or any
         Affiliate or Associate thereof (as such terms are defined in the Rights
         Agreement), whether currently held by or on behalf of such Person or by
         any subsequent holder, may become null and void."

                                  Page 55 of 55

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