Color signal processing apparatus

Details Color signal processing apparatus Color signal processing apparatus

1990-10-01

1992-10-27

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 964, H04N 968

Patent

active

051594420

ABSTRACT:
A color signal processing apparatus comprising a first delay circuit for delaying an input chroma signal; a second delay circuit for delaying an output of the first delay circuit; a plurality of gain control circuits for controlling the amplitudes of the input chroma signal and the outputs of the first and second delay circuits, respectively; and an operating circuit for operating the gain-controlled amplitudes of the input chroma signal and the outputs of the first and second delay circuits, wherein the phases of the outputs of the first and second delay circuits are matched with the phase of the input chroma signal.

REFERENCES:
patent: 4041531 (1977-08-01), Bingham
patent: 4343017 (1982-08-01), Wilkinson
patent: 4402006 (1983-08-01), Karlock
patent: 4504853 (1985-03-01), Faroudja
patent: 4935806 (1990-06-01), Rabii
"A New Single Chip LSI for an NTSC CTV Signal Processing", by Yoshimochi et al., 8087 IEEE Transactions on Cosumer Electronics, Aug. 1989, No. 3, New York, pp. 297-306.
Hickok, Amplitude and Phase Sensitive Comb Filter, Research Disclosure, Sep. 1978, pp. 56-57.

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