Automatic gain control delay circuit for a video signal processo

Details Automatic gain control delay circuit for a video signal processo Automatic gain control delay circuit for a video signal processo

1987-05-06

1988-08-02

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358179, 455246, H04N 552

Patent

active

047616873

ABSTRACT:
In an automatic gain control (AGC) network in a video signal processing system, a comparator responds to an input control signal for providing an output control signal to an RF tuner amplifier for decreasing its gain below a normal maximum level when the input signal exceeds a threshold value. The operation of the comparator is inhibited beyond a predetermined level of the input control signal, to prevent a false output gain control signal from being developed.

REFERENCES:
patent: 3495031 (1970-02-01), Poppa
patent: 3838210 (1974-09-01), Peil
patent: 4237490 (1980-12-01), Harford
patent: 4630117 (1986-12-01), Parker

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