Power source for electronic tuning tuner

Details Power source for electronic tuning tuner Power source for electronic tuning tuner

1986-09-19

1989-01-24

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

3581911, 455343, H04N 318, H04N 544

Patent

active

048004340

ABSTRACT:
A power source for an electronically tuned tuner in which a horizontal deflection circuit supplies high voltage power to a fly-back transformer, supplying power to the tuner, when a television signal is received but otherwise a battery source is switched into supplying the tuner. The change-over circuit may be realized by a relay, by transistors or by diodes.

REFERENCES:
patent: 4281349 (1981-07-01), George
patent: 4368409 (1983-01-01), Sivanesan
patent: 4552166 (1985-11-01), Sutton
patent: 4604556 (1986-08-01), Haferl

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