Gray scale sync video processing system

Details Gray scale sync video processing system Gray scale sync video processing system

1979-06-08

1981-10-13

Murray, Richard

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 17, 358142, 358120, 358160, H04J 932

Patent

active

042951550

ABSTRACT:
The blacker-than-black sync pulse of a standard video signal is replaced by a gray scale sync to increase picture signal, permit audio multiplexing and allow security phase inversion by means of encoder and decoder circuitry including a sync stripper, gate and timing generator, audio processor, phase code generator, color reference regenerator, blank and summing amplifier, and phase reversal amplifier.

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patent: 3924059 (1975-12-01), Horowitz
patent: 4075660 (1978-02-01), Horowitz

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