Tint control circuit

Details Tint control circuit Tint control circuit

H - Electricity

03

L

350/59

H03L 7/08 (2006.01) H04N 9/64 (2006.01) H04N 9/72 (2006.01)

Patent

CA 1096488

ABSTRACT OF THE DISCLOSURE A tint control circuit for color television receivers includes a voltage-controlled oscillator for locally generating a color subcarrier. a variable phase shifter shifting the phase of the generated subcarrier in dependence on a manually adjusted DC control voltage, and a phase detector which allows a received color burst to be supplied to a load circuit in dependence on the difference in phase between the color burst and the DC-controlled, variable phase-shifted subcarrier in order to derive a DC control voltage from the load circuit which controls the valtage-controlled oscillator. - 1 -

305027

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