Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions
Reexamination Certificate
2011-04-19
2011-04-19
Ngo, Ricky (Department: 2464)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Particular set of orthogonal functions
C370S210000
Reexamination Certificate
active
07929409
ABSTRACT:
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.
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Chitrapu Prabhakar R.
Herschaft Richard Dan
Hoffmann John Erich
Kaewell, Jr. John David
Olesen Robert Lind
InterDigital Technology Corporation
Ngo Ricky
Oveissi David
Woodcock & Washburn LLP
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