Exhibit 23.1

                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS



As independent  public  accountants,  we hereby consent to the  incorporation by
reference  in this  registration  statement  on Form  S-8 of our  reports  dated
February 6, 2001,  included in InterDigital  Communications  Corporation's  Form
10-K for the year ended  December 31, 2000,  and to all  references  to our Firm
included in this registration statement.



                                           /s/ ARTHUR ANDERSEN LLP


Philadelphia, Pennsylvania
  June 15, 2001