The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 2009
Filed:
Nov. 23, 2004
Prabhakar R. Chitrapu, Blue Bell, PA (US);
Alain Charles Louis Briancon, Poolesville, MD (US);
Akinlolu Oloruntosi Kumoluyi, Plainfield, NJ (US);
Alan Gerald Carlton, Mineola, NY (US);
Kiran Kumar S. Vanganuru, Vienna, VA (US);
Richard Dan Herschaft, Whitestone, NY (US);
John Erich Hoffmann, Indialantic, FL (US);
John Thommana, Austin, TX (US);
Debashish Purkayastha, Pottstown, PA (US);
Guodong Zhang, Farmingdale, NY (US);
Robert Lind Olesen, Huntington, NY (US);
Alexander Reznik, Titusville, NJ (US);
Tiejun Shan, Upper Salford, PA (US);
Sung-hyuk Shin, Northvale, NJ (US);
Amit Singhal, King of Prussia, PA (US);
Prabhakar R. Chitrapu, Blue Bell, PA (US);
Alain Charles Louis Briancon, Poolesville, MD (US);
Akinlolu Oloruntosi Kumoluyi, Plainfield, NJ (US);
Alan Gerald Carlton, Mineola, NY (US);
Kiran Kumar S. Vanganuru, Vienna, VA (US);
Richard Dan Herschaft, Whitestone, NY (US);
John Erich Hoffmann, Indialantic, FL (US);
John Thommana, Austin, TX (US);
Debashish Purkayastha, Pottstown, PA (US);
Guodong Zhang, Farmingdale, NY (US);
Robert Lind Olesen, Huntington, NY (US);
Alexander Reznik, Titusville, NJ (US);
TieJun Shan, Upper Salford, PA (US);
Sung-Hyuk Shin, Northvale, NJ (US);
Amit Singhal, King of Prussia, PA (US);
InterDigital Technology Corporation, Wilmington, DE (US);
Abstract
Tokens/keys are produced for wireless communications. These tokens/keys are used for watermarks, signature insertion, encryption and other uses. In one embodiment, contextual information is used to generate tokens/keys. The tokens/keys may be derived directly from the contextual information. The contextual information may be used in conjunction with other information to derive the tokens/keys. Tokens/keys may be exchanged between transmit/receive units. The exchange of these tokens/keys may be encrypted.