Television – Format – Including additional information
Patent
1997-05-19
1999-08-17
Peng, John K.
Television
Format
Including additional information
348469, 348907, 348 1, 380 6, 455 2, 341139, 375209, H04N 7087
Patent
active
059401354
ABSTRACT:
Apparatus and methods are provided for encoding, storing and decoding auxiliary information on an analog source signal in a way which has minimal impact on the human perception of the source information when the source signal is applied to an appropriate output device, such as a speaker or a display monitor. The autocorrelation function of a host signal is modulated according to the value of an auxiliary information signal by adding a host modifying signal to the host signal. The auxiliary signal is decoded by generating the autocorrelation function of the encoded signal and extracting the auxiliary signal according to well-known signal extraction techniques.
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Jemili Kanaan
Metois Eric
Petrovic Rade
Winograd Joseph M.
Aris Technologies, Inc.
Desir Jean W.
Peng John K.
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