Video signal dropout compensator

Details Video signal dropout compensator Video signal dropout compensator

H - Electricity

04

N

350/62, 340/73

H04N 9/12 (2006.01) H04N 9/888 (2006.01)

Patent

CA 1138096

RCA 73,304 Abstract of the Disclosure A video signal dropout compensator stores information from at least one incoming television line which is represented by a plurality of samples of combined luminance and chrominance signal components. The samples occur at a rate equal to four times the chrominance subcarrier frequency. When a signal dropout is detected in one or more of the samples, a replacement sample is generated using samples from at least one adjacent tele- vision line. The value of the sample on the adjacent line at the horizontal location, corresponding to the dropout sample, is subtracted from the sum of the samples before and after this corresponding location sample. The resultant value gives a dropout replacement sample with proper chrominance phase having a close approximation of the correct luminance value.

356529

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