Interframe CODEC for composite color TV signals comprising means

Details Interframe CODEC for composite color TV signals comprising means Interframe CODEC for composite color TV signals comprising means

1977-07-19

1979-02-27

Murray, Richard

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 932

Patent

active

041422058

ABSTRACT:
An interframe encoder for a composite color television signal comprises an inverter for inverting the polarity of the carrier chrominance signal. Responsive to a switching signal synchronized with the frame or line periods, the television signal and the polarity-inverted signal are alternatingly switched into a converted signal in which the polarity of the carrier chrominance signal is inverted in every other frame or line period. The converted signal is interframe encoded. An interframe decoder reproduces the converted signal and the switching signal and comprises an inverter for inverting the polarity of the reproduced carrier chrominance signal. Responsive to the reproduced switching signal, the reproduced and polarity-inverted carrier chrominance signal and the converted signal are switched into a reproduction of the color television signal.

REFERENCES:
patent: 3946432 (1976-03-01), Goldberg et al.

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