发明名称 |
Orthogonal frequency division multiplexing (OFDM) method and apparatus for protecting and authenticating wirelessly transmitted digital information |
摘要 |
A method and apparatus for protecting and authenticating wirelessly transmitted digital information using numerous techniques. The apparatus may be a wireless orthogonal frequency division multiplexing (OFDM) communication system, a base station, a wireless transmit/receive unit (WTRU), a transmitter, a receiver and/or an integrated circuit (IC). The wireless OFDM communication system includes a transmitter which steganographically embeds digital information in an OFDM communication signal and wirelessly transmits the OFDM communication signal. The system further includes a receiver which receives the OFDM communication signal and extracts the steganographically embedded digital information from the received OFDM communication signal. |
申请公布号 |
US2005180315(A1) |
申请公布日期 |
2005.08.18 |
申请号 |
US20050035174 |
申请日期 |
2005.01.13 |
申请人 |
INTERDIGITAL TECHNOLOGY CORPORATION |
发明人 |
CHITRAPU PRABHAKAR R.;KAEWELL JOHN D.JR.;OLESEN ROBERT L.;SHIN SUNG-HYUK;HOFFMANN JOHN E.;HERSCHAFT RICHARD D. |
分类号 |
H04B7/216;H04B7/26;H04J11/00;H04L1/00;H04L1/06;H04L1/08;H04L1/18;(IPC1-7):H04J11/00 |
主分类号 |
H04B7/216 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|