Abstract: An automatic color corrector is disclosed for use in a color television receiver. To enable color correction of chroma signals within a selected range of the fleshtone axis, the outputs of the chroma demodulators are sensed to develop a control signal. In response to the control signal, a color modifier automatically reduces the gain of the (B-Y) demodulator by a predetermined factor. Preferably, the color modifier also adds a predetermined negative (B-Y) component of fixed value to the output of the (B-Y) demodulator. As a result, fleshtone chroma signals which otherwise have an unnatural cast are given a more natural color and the addition of the negative (B-Y) component causes the resultant color correction to be centered about the fleshtone axis.

Abstract: A hysteresis type color killer is described for use in a color television receiver. Lower power dissipation in the color killer is achieved by adapting an existing transistor stage in the chroma channel as a source of d.c. feedback for the color killer. Hence, the transistor stage does double duty and power dissipation is lowered.