发明授权
- 专利标题: Code division multiple access (CDMA) method and apparatus for protecting and authenticating wirelessly transmitted digital information
- 专利标题(中): 用于保护和认证无线传输的数字信息的码分多址(CDMA)方法和装置
-
申请号: US11034987申请日: 2005-01-13
-
公开(公告)号: US07415043B2公开(公告)日: 2008-08-19
- 发明人: John David Kaewell, Jr. , Prabhakar R. Chitrapu , Robert Lind Olesen , Sung-Hyuk Shin , John Erich Hoffmann , Alexander Reznik
- 申请人: John David Kaewell, Jr. , Prabhakar R. Chitrapu , Robert Lind Olesen , Sung-Hyuk Shin , John Erich Hoffmann , Alexander Reznik
- 申请人地址: US DE Wilmington
- 专利权人: InterDigital Technology Corporation
- 当前专利权人: InterDigital Technology Corporation
- 当前专利权人地址: US DE Wilmington
- 代理机构: Volpe and Koenig, P.C.
- 主分类号: H04J13/00
- IPC分类号: H04J13/00
摘要:
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.
公开/授权文献
信息查询