Video signal coding system

Details Video signal coding system Video signal coding system

1976-04-05

1977-10-18

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 13, 358 19, H04N 522

Patent

active

040549046

ABSTRACT:
A video signal coding system includes multiple sources to load a digital version of a composite video signal into an associated storage memory. The several memories or memory portions are interrogated employing a common reference wave to obtain the stored digitized video signals in synchronism with one another.
In accordance with the principles of the present invention,feedback circuitry is employed in each digital video signal source to sample each video program in a like phase relationship with respect to the signal color burst. Accordingly, the color information is reliably preserved and is in synchronism between video programs upon signal read out from memory.

REFERENCES:
patent: 3647965 (1972-03-01), Butler
patent: 3860952 (1975-01-01), Tallent et al.
patent: 3946432 (1976-03-01), Goldberg et al.
patent: 3971063 (1976-07-01), Michael et al.
Kiver et al., Television Simplified, Van Nostrand Reinhold Co., 1973, p. 490.

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