Television – Format – Including additional information
Patent
1994-04-08
1997-09-09
Peng, John K.
Television
Format
Including additional information
348463, 348467, 358305, H04N 7087
Patent
active
056661681
ABSTRACT:
The instant application is directed to a cable facsimile machine which implements the upper vestigial chrominance sideband of a standard video signal for data transmission.
Signal processors for permitting the transparent, simultaneous transmission and reception of a data signal in the video bandwidth is disclosed. The signal processor in the transmitter rasterizes the data at the horizontal scanning rate and modulates the data with a data carrier at a non-integral multiple of the horizontal scanning rate to obtain frequency interleaving. The data is transmitted during the active video portion of each video line.
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Montgomery Gerald D.
Norrish Jay B.
Flynn Nathan J.
Peng John K.
WavePhore, Inc.
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