CCD Comb filter and demodulator

Details CCD Comb filter and demodulator CCD Comb filter and demodulator

1980-09-08

1982-01-26

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 23, H04N 9535

Patent

active

043131310

ABSTRACT:
A color demodulation and comb filtering system is described for use in a color television receiver. The system includes a pair of charge coupled devices (CCD's) which each receive a filtered video signal and which develop outputs which are delayed, one from the other, by one horizontal line interval. Both devices are clocked at the color subcarrier frequency to develop outputs which include demodulated color and luminance components. The outputs of the two CCD's are combined in a summer, the output of which includes demodulated color components from which luminance components are eliminated.

REFERENCES:
patent: 4096516 (1978-06-01), Pritchard
patent: 4158209 (1979-06-01), Levine
patent: 4205335 (1980-05-01), Nakagawa
patent: 4224638 (1980-09-01), Pritchard
A Practical Charge-Coupled Device Filter for the Separation of Luminance and Chrominance Signals in a Television Receiver, Barton, IEEE Trans on Consumer Electronics, vol. CE-23, No. 3, Aug. 1977, pp. 342-357.

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