Amplifier circuit to prevent video "buzzing" sound caused by a t

Details Amplifier circuit to prevent video "buzzing" sound caused by a t Amplifier circuit to prevent video "buzzing" sound caused by a t

1992-09-03

1993-08-03

Peng, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358190, 3581911, 358166, H04N 544, H04N 563, H04N 550, H04N 514

Patent

active

052334244

ABSTRACT:
In a television receiving apparatus, the output step of a video IF circuit or a video amplifying circuit in the rear step is formed by using an NPN transistor amplifying circuit and PNP transistor amplifying circuit and both transistor amplifying circuits are fed with as an input a video signal of the same polarity and are fed with as a power source a voltage from the same power source circuit as of the tuner and video IF circuit.

REFERENCES:
patent: 4742393 (1988-03-01), Sugai et al.

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