Device for separating luminance and color based on line correlat

Details Device for separating luminance and color based on line correlat Device for separating luminance and color based on line correlat

1991-05-06

1993-06-01

Peng, John K.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 964

Patent

active

052164942

ABSTRACT:
In a Y/C separator, a computed signal is obtained through computation on from a signal of a color carrier signal band in a Y/C composite video signal and a delayed signal obtained by delaying the signal of the color carrier signal band by a 1 H period. The computation includes one for producing an absolute value, one for producing a smaller one of a plurality of signals, and subtraction and addition. Under control of the computed signal and a reference signal, a color carrier signal is produced in accordance with the signal of the color carrier signal band and a signal obtained by comb filtering the signal of the color carrier signal band.

REFERENCES:
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patent: 4916527 (1990-04-01), Matsuo
patent: 4954885 (1990-09-01), Ito et al.
patent: 5001553 (1991-03-01), Matsuo et al.
patent: 5025311 (1991-06-01), Hosoi
patent: 5051818 (1991-09-01), Mishima
patent: 5132784 (1992-07-01), Hague et al.

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