Video signal processing circuit

Details Video signal processing circuit Video signal processing circuit

1978-08-17

1981-03-24

Murray, Richard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358141, H04N 514

Patent

active

042583900

ABSTRACT:
A video signal processing circuit in which sampling hold circuits are responsive to respective sampling pulses supplied simultaneously for sampling common input video signals and for holding values thus sampled until succeeding sampling pulses are introduced. A sampling pulse generation circuit supplies a plurality of sampling pulse trains, respectively, having pulses of a pulse width .tau. and a period T. These pulses of respective pulse trains are not overlapped mutually on a time axis. A circuit derives as output thereof maximum or minimum levels of outputs of the sampling hold circuits or for adding outputs of the sampling hold circuits and for producing an added signal as output.

REFERENCES:
patent: 3842200 (1974-10-01), Dolch
patent: 3911212 (1975-10-01), Yoshizawa et al.
patent: 4130835 (1978-12-01), Guildford

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