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:
Aug. 19, 2008
Filed:
Jan. 13, 2005
John David Kaewell, Jr., Jamison, PA (US);
Prabhakar R. Chitrapu, Blue Bell, PA (US);
Robert Lind Olesen, Huntington, NY (US);
Sung-hyuk Shin, Northvale, NJ (US);
John Erich Hoffmann, Indialantic, FL (US);
Alexander Reznik, Titusville, NJ (US);
John David Kaewell, Jr., Jamison, PA (US);
Prabhakar R. Chitrapu, Blue Bell, PA (US);
Robert Lind Olesen, Huntington, NY (US);
Sung-Hyuk Shin, Northvale, NJ (US);
John Erich Hoffmann, Indialantic, FL (US);
Alexander Reznik, Titusville, NJ (US);
InterDigital Technology Corporation, Wilmington, DE (US);
Abstract
A spread spectrum method and apparatus for protecting and authenticating wirelessly transmitted digital information using numerous techniques. The apparatus may be a wireless code division multiple access (CDMA) communication system, a base station, a wireless transmit/receive unit (WTRU), a transmitter, a receiver and/or an integrated circuit (IC). The wireless CDMA communication system includes a transmitter which steganographically embeds digital information in a CDMA communication signal and wirelessly transmits the CDMA communication signal. The system further includes a receiver which receives the CDMA communication signal and extracts the steganographically embedded digital information from the received CDMA communication signal.