Exhibit 99.1

 InterDigital Awarded $134 Million Plus Interest in Arbitration Proceeding with
 Samsung for Sales Through 2005; Tribunal Also Sets Royalty Rates for Samsung's
                 Sales of GSM/GPRS/EDGE Terminal Units In 2006

    KING OF PRUSSIA, Pa.--(BUSINESS WIRE)--Sept. 6, 2006--InterDigital
Communications Corporation (Nasdaq:IDCC), today announced that the
Tribunal in the arbitration proceeding between InterDigital
Communications Corporation and its wholly-owned subsidiary,
InterDigital Technology Corporation (ITC), and Samsung Electronics
Co., Ltd. (Samsung) has issued its Final Award. Among its
determinations, the Tribunal awarded InterDigital approximately $134
million in past royalties plus interest on Samsung's sale of single
mode 2G GSM/TDMA and 2.5G GSM/GPRS/EDGE terminal units through 2005.
The Tribunal also established the royalty rates to be applied to
Samsung's sales of covered products in 2006. Based on available market
data, the company estimates that Samsung's royalty obligation for the
first half of 2006 will be in the range of $17 million to $21 million.
    The Award requires Samsung to promptly pay amounts due, net of an
approximate $6 million prepayment credit. In addition, the company
estimates Samsung's interest obligation to be in the range of $11
million to $13 million. As a result of the Award, Samsung's royalty
obligations under Samsung's patent license agreement with InterDigital
for sales of single-mode 2G GSM/TDMA and 2.5G GSM/GPRS/EDGE terminal
units made after 2006 will be fully paid-up after Samsung pays
royalties for sales of covered products sold through 2006.
    Separate from the royalty issues on 2G and 2.5G products, the
Tribunal also determined that Samsung has not obtained the broader
CDMA and 3G patent license rights in the Nokia agreement with
InterDigital, notwithstanding Samsung's Most Favored Licensee (MFL)
election in 2002 of the Nokia agreement.
    "We are pleased with the Tribunal's decision," said William J.
Merritt, InterDigital's President and Chief Executive Officer. "The
Tribunal's findings in this contractual dispute are consistent with
our beliefs as to Samsung's obligations and we have filed an action
seeking to enforce the Award in the U.S. District Court for the
Southern District of New York."
    The company will recognize revenue associated with the Award after
all criteria for revenue recognition have been met.

    Note to editors:

    In February 1996, Samsung entered into agreements with
InterDigital which covered both technology development and patent
license agreement. As part of the agreements, Samsung paid
approximately $35 million up front to InterDigital. As part of an
arbitration proceeding concluded in 2002, Samsung elected, pursuant to
its MFL clause, to have its royalty obligations commencing January 1,
2002 for its TDMA-based wireless communication products be determined
in accordance with the terms of InterDigital's patent license
agreement with Nokia. Patent licensing agreements signed in March 2003
between InterDigital and Ericsson and Sony Ericsson established the
framework for Nokia's royalty obligations for 2G GSM/TDMA and 2.5G
GSM/GPRS/EDGE handset and infrastructure sales. After these patent
license agreements were signed, InterDigital notified Samsung of its
royalty payment obligations. Samsung disagreed with InterDigital's
interpretation of the impact of these patent licensing agreements and
requested binding arbitration in November 2003 to resolve the dispute.
The Arbitral Tribunal, operating under the auspices of the
International Court of Arbitration of the International Chamber of
Commerce, conducted a hearing in January 2006 before rendering its
Award.

    About InterDigital

    InterDigital Communications Corporation designs, develops and
provides advanced wireless technologies and products that drive voice
and data communications. InterDigital is a leading contributor to the
global wireless standards and holds a strong portfolio of patented
technologies which it licenses to manufacturers of 2G, 2.5G, 3G and
802 products worldwide. Additionally, the company offers baseband
product solutions and protocol software for 3G multimode terminals and
converged devices. InterDigital's differentiated technology and
product solutions deliver time-to-market, performance and cost
benefits. For more information, please visit: www.interdigital.com.
InterDigital is a registered trademark of InterDigital.

    This press release contains forward-looking statements regarding
our current beliefs, plans and expectations as to the amount of
interest and 2006 royalty revenues we may be paid by Samsung.
Forward-looking statements are subject to risks and uncertainties.
Actual outcomes could differ materially from those expressed in or
anticipated by such forward-looking statements due to a variety of
factors including, but not limited to, inaccuracies in the market
projections of Samsung sales of terminal units and in calculations of
interest owed.

    CONTACT: InterDigital Communications Corporation
             Media Contact:
             Jack Indekeu, 610-878-7800
             jack.indekeu@interdigital.com
                 or
             Investor Contact:
             Janet Point, 610-878-7800
             janet.point@interdigital.com