Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1982-12-07
1985-09-17
Chin, Tommy P.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358142, 358143, 358146, H04N 704
Patent
active
045424063
ABSTRACT:
The horizontal sync signal contained in the video signal from a video apparatus sometimes undergoes phase jump, resulting in failure of multiplexing of audio and video signals based on the horizontal sync signal. A sync signal switching circuit is adapted to produce a modified sync signal by switching the sync signal to a local sync signal upon occurrence of the phase jump, thereby assuring the multiplexing of audio and video signals.
REFERENCES:
patent: 3755624 (1973-08-01), Sekimoto
Hanabata Toshio
Hiraoka Makoto
Nomoto Shinobu
Ohshima Toshio
Shimoyama Haruo
Chin Tommy P.
Fujitsu Limited
Nippon Electric Co. Ltd.
Nippon Telegraph & Telephone Public Corporation
Parker Michael D.
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