Video disc player having vertical timing signal generator

Facsimile and static presentation processing – Facsimile – Recording apparatus

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Details

358336, 358342, 358147, 358148, H04N 576, H04N 504

Patent

active

044096267

ABSTRACT:
A signal source continuously produces a horizontal timing signal proportional to the line rate of a recovered composite video signal. A vertical timing unit coupled to the source continuously produces a vertical timing signal proportional to the field rate of the video signal. An error detector processes data words present in the vertical interval of the composite video signal to provide a data status signal indicative of the validity of each processed data word. The data status signal is applied to the vertical timing unit for synchronizing the vertical timing signal with the vertical synchronizing component of the composite video signal and rendering the vertical timing signal substantially immune to noise which might accompany the composite video signal.

REFERENCES:
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patent: 3941920 (1976-03-01), Mohri et al.
patent: 3941930 (1976-03-01), Mohri et al.
patent: 3984828 (1976-10-01), Beyers, Jr.
patent: 4122488 (1978-10-01), Mikado
patent: 4123779 (1978-10-01), Goldschmidt
patent: 4313134 (1982-01-01), Rustman et al.
patent: 4376956 (1983-03-01), Kelleher

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