Filter and phase shift circuit for a television automatic...

Details Filter and phase shift circuit for a television automatic... Filter and phase shift circuit for a television automatic...

H - Electricity

04

N

350/59

H04N 9/12 (2006.01) H04N 9/64 (2006.01)

Patent

CA 1175560

RCA 74,884 Abstract of the Disclosure A frequency selective signal translating circuit is disclosed for use in a color television receiver including an automatic flesh tone color correction network which provides a reference signal for color demodulators of the receiver. The circuit comprises an input bandpass filter for attenuating unwanted frequency components from the reference signal output of the correction network. The filter is followed by a phase shifter for shifting the phase of the filtered reference signal as required for proper demodulator operation. The filter comprises a fixed alignment, single-tuned, series resonant circuit coupled in series between the correction network output and the demodulator reference signal inputs.

398510

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