Method of modulating a composite color television signal on a ca

Details Method of modulating a composite color television signal on a ca Method of modulating a composite color television signal on a ca

1978-08-15

1980-07-15

Richardson, Robert L.

Facsimile and static presentation processing

Static presentation processing

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358 13, H04N 902

Patent

active

042131448

ABSTRACT:
A method of modulating a composite color television signal on a carrier wave. The luminance signal is frequency-modulated on the carrier wave. The chrominance signal is translated to a subcarrier wave frequency either by mixing the modulated carrier wave or frequency modulating the carrier wave with said chrominance signal. Subsequently, the carrier wave is pulse-width modulated with said subcarrier wave. In this way a signal is obtained from which the original color television signal can be recovered by a single frequency demodulation operation, while the normally occurring undesired interference components can be reduced substantially.

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