Automatic peak color control circuit

Details Automatic peak color control circuit Automatic peak color control circuit

1974-07-15

1976-06-08

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 9535

Patent

active

039627233

ABSTRACT:
In a television receiver having a chrominance signal channel coupled to a cathode ray tube, an automatic peak color control circuit includes an envelope detector means providing a combined chroma envelope and DC potential, a means for shifting the level of the combined chroma envelope and DC potential, a means for detecting the peak level of the chroma signal, and a means for comparing the detected peak chroma signal level and a reference potential level to provide a control signal for maintaining application of a substantially constant level of chroma signal to the cathode ray tube.

REFERENCES:
patent: 3571499 (1971-03-01), Hansen et al.
patent: 3708613 (1973-01-01), Nakabe et al.
patent: 3732358 (1973-05-01), Harwood
patent: 3740462 (1973-06-01), Harwood
patent: 3764734 (1973-10-01), Srivastava

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