Comb filter-burst locked clock circuitry

Details Comb filter-burst locked clock circuitry Comb filter-burst locked clock circuitry

1991-05-20

1992-07-21

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 19, H04N 978

Patent

active

051327848

ABSTRACT:
The present invention is directed to a video signal processing system including a burst locked clock generator which is repsonsive to separated chrominance signal provided by a comb filter. The comb filer includes apparatus responsive to a burst gate signal, for passing non-comb filtered video signal during burst intervals thereby enhancing the response time of the clock generator.

REFERENCES:
patent: 4543600 (1985-09-01), Bolger
patent: 4604646 (1986-08-01), Karlock
patent: 4745463 (1988-05-01), Lu
patent: 4882626 (1989-11-01), Fling et al.
patent: 4961108 (1990-10-01), Perlman

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