Circuit for processing color video signal

Details Circuit for processing color video signal Circuit for processing color video signal

1987-10-13

1989-01-03

Hix, L. T.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358316, 358329, H04N 980

Patent

active

047960965

ABSTRACT:
In a color video signal processing circuit for use in processing two chrominance component signals produced on the reproduction side of a video tape recorder, in which two chrominance component signals have been time compressed and successively recorded in cyclically repeated fashion as one series of chrominance signal, such a signal is time expanded and made into two series of chrominance signals on the reproduction side. Each of the two series of chrominance signals, i.e., the current signal, and the signal 1H before each are subjected to digital processing for detection of a correlation therebetween and an arithmetical mean value of both the signals is output when there is such a correlation and also the level of the current signal is higher than a reference level, whereas the current signal is output as it is when the level of the current signal is lower than the reference level or when there is no such correlation even if the level of the current signal is higher than the reference level.

REFERENCES:
patent: 4743977 (1988-05-01), Yoshioka et al.

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