Television video signal detector

Details Television video signal detector Television video signal detector

1981-09-23

1983-06-07

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

329 50, 329123, 455324, 455337, H04B 130, H04N 544

Patent

active

043873987

ABSTRACT:
The video IF signal is applied to a carrier amplifier so that the signal is amplified and limited in amplitude and consequently only the carrier can be derived. The video IF signal is also amplified by a linear amplifier and compensated by a phase compensation circuit in such a way that the relative phase difference between the outputs from the carrier amplifier and linear amplifier can be eliminated. The outputs from the carrier amplifier and linear amplifier are applied to a synchronous detector, whereby the television video signal without any distortion can be derived.

REFERENCES:
patent: 3417337 (1968-12-01), Prasil
patent: 3750029 (1973-07-01), Baars
patent: 4234963 (1980-11-01), Hongu

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