Method for the correction of television signals at transmission,

Details Method for the correction of television signals at transmission, Method for the correction of television signals at transmission,

1991-07-24

1993-05-11

Peng, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 36, 380 7, 380 14, H04N 5213, H04N 964

Patent

active

052106080

ABSTRACT:
According to the disclosed method, a reference line is caused to be transmitted during the non-visible part of the image, the transmissions are received with a calibrated receiver, this reference line is sampled, an error signal is produced from the difference between this line and its theoretical value, a correction coefficient is deduced therefrom for each of the samples of the line, and this correction coefficient is applied to the lines of the following frames.

REFERENCES:
patent: 4777648 (1988-10-01), Gardner
patent: 4951314 (1990-08-01), Shreve
patent: 4964162 (1990-10-01), McAdam et al.
patent: 4972263 (1990-11-01), Lamdraziu

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