Chrominance signal controlling apparatus

Details Chrominance signal controlling apparatus Chrominance signal controlling apparatus

H - Electricity

04

N

350/60

H04N 9/68 (2006.01) H04N 9/64 (2006.01)

Patent

CA 1113600

A CHROMINANCE SIGNAL CONTROLLING APPARATUS ABSTRACT OF THE DISCLOSURE A chrominance signal controlling apparatus for controlling a chrominance signal in a color television receiver comprises a luminance signal producing circuit for producing a luminance signal by mixing three primary color signals, a subtracting circuit for producing a difference signal between one of the primary color signal and the luminance signal, and a comparing circuit for producing a control signal for controll- ing a chrominance signal level and/or phase by keeping the difference signal equel to a certain level. - 0 - 0 -

302710

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