Ccd comb filter and demodulator

Details Ccd comb filter and demodulator Ccd comb filter and demodulator

H - Electricity

04

N

350/72

H04N 9/12 (2006.01) H04N 9/78 (2006.01)

Patent

CA 1160736

CCD COMB FILTER AND DEMODULATOR ABSTRACT OF THE DISCLOSURE 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.

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