Television tuner having simplified wiring for...

Details Television tuner having simplified wiring for... Television tuner having simplified wiring for...

2005-05-31

2005-05-31

Kostak, Victor R. (Department: 2614)

Television

Receiver circuitry

Tuning

C455S180200

Reexamination Certificate

active

06900850

ABSTRACT:
A switching voltage generation circuit is provided with a first switch transistor, a second switch transistor, and a third switch transistor whose base is connected to the base of the second switch transistor. When a television signal of a UHF band is to be received, the first switch transistor is turned off, and the second and third switch transistors are turned on. When a television signal of a high band of a VHF band is to be received, the first switch transistor is turned on, and the second and third switch transistors are turned off. When a television signal of a low band of the VHF band is to be received, the first, second, and third switch transistors are turned off.

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patent: 2002/0030530 (2002-03-01), Tsutsumi
patent: 198 19 544 (1999-11-01), None
patent: 0 457 934 (1991-11-01), None
patent: 4-369918 (1992-12-01), None
patent: 2000-224007 (2000-08-01), None
patent: WO 98/15055 (1998-04-01), None
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