Automatic color saturation controller

An automatic color saturation controller connected to a demodulator via a color killer circuit, which comprises:

• (a) first automatic color saturation control means responsive to a chrominance signal including a color burst signal, for synchronous-detecting a product signal of a reference chrominance subcarrier and the color burst signal to produce a first constant level chrominance signal on the basis of the synchronous-detected product signal, and applying only the color burst signal to the color killer circuit to activate the color killer circuit when the applied color burst signal drops below a predetermined color killer level;
• (b) second automatic color saturation control means also responsive to said chrominance signal including said color burst signal, for peak-detecting the color burst signal to produce a second constant level chrominance signal on the basis of the peak-detected color burst signal;
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• (c) chrominance signal gate means responsive to said second constant level chrominance signal produced by said second automatic color saturation control means, for extracting only said chrominance signal from said second constant level chrominance signal and supplying the extracted chrominance signal to a chrominance signal demodulator.