Color signal reproducing system and circuit for the same

Details Color signal reproducing system and circuit for the same Color signal reproducing system and circuit for the same

1978-11-28

1981-06-30

Murray, Richard

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 21V, 358 27, H04N 9535

Patent

active

042765609

ABSTRACT:
In a color signal reproducing circuit, a red color difference signal from a color demodulator circuit is corrected by a blue color difference signal, and the blue color difference signal is corrected by a luminance signal. The phase of a color subcarrier signal to be supplied to the color demodulator circuit is controlled by the corrected red color difference signal during reception of a VIR signal, and the level of a color signal to be supplied to the color demodulator circuit is controlled by the corrected blue color difference signal. The controls of hue and color saturation are facilitated by the use of the corrected color difference signals. It is also made possible to deliver from the color demodulator circuit, color difference signals which match the fluorescence characteristics of a color picture tube.

REFERENCES:
patent: 3950780 (1976-04-01), Freestone
patent: 4130831 (1978-12-01), Isono et al.
"A Flesh-Tone Correction Circuit", Roy Ekstrano, IEEE Trans Broadcast & Telev. Recv., vol. BTR-17 No. 3, Aug. 1971.

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