X0202 4 2007-05-16 0000354913 INTERDIGITAL COMMUNICATIONS CORP IDCC 0001364064 Nolan James J 781 THIRD AVENUE KING OF PRUSSIA PA 19406-1409 0 1 0 0 Executive VP, Engineering Common Stock 2007-05-16 4 F 0 563 32.56 D 13287 D Common Stock 1968 I By 401(k) Plan The transaction reported in this Form 4 reflects the withholding of restricted stock units (RSUs) in satisfaction of the Reporting Person's tax liability. The RSUs were part of an award made to the Reporting Person pursuant to the Company's 1999 Restricted Stock Plan and which vested, in part, on May 16, 2007. As of the most recently published account statement dated May 15, 2007, the Reporting Person beneficially owned 1,968 shares of Common Stock pursuant to the InterDigital Communications Corporation Savings and Protection Plan. /s/ Rebecca Bridgeford Opher, Attorney-In-Fact for James J. Nolan 2007-05-18