Television tuner using integrated circuit

Details Television tuner using integrated circuit Television tuner using integrated circuit

2008-03-25

2008-03-25

Ometz, David (Department: 2622)

Television

Receiver circuitry

Tuning

C348S732000, C348S733000, C348S725000, C455S179100, C455S195100

Reexamination Certificate

active

10991566

ABSTRACT:
An integrated circuit is provided with a power supply terminal and an external circuit connecting terminal which is DC insulated from an internal high-frequency circuit and is connected to an external circuit. An interface is provided with an address identifying circuit having applied with an address identifying voltage corresponding to address data and for setting the interface to receive only channel selection data by the address identifying voltage. The address identifying circuit is connected to the external circuit connecting terminals, and a first resistor is connected between the power supply terminal and the external circuit connecting terminal. The external circuit connecting terminal is DC shorted to the ground, a second resistor is connected between the external circuit connecting terminal and the ground, or the external circuit connecting terminal is DC insulated from the ground.

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patent: 2003-234971 (2003-08-01), None
patent: 3100017 (2003-12-01), None

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