Tuning device for liquid crystal television

Details Tuning device for liquid crystal television Tuning device for liquid crystal television

1986-11-07

1988-03-15

Masinick, Michael A.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455183, 455260, 455265, 3581911, H04B 116

Patent

active

047318716

ABSTRACT:
A tuning device of a liquid crystal television at first tunes by a PLL synthesizer system, and then maintains an obtained tuning voltage by an AFT signal for deciding an intermediate frequency after the PLL tuning. The device interrupts the power to at least the prescaler of the PLL loop when in the AFT mode, to reduce overall power consumption.

REFERENCES:
patent: 4078212 (1978-03-01), Rast
patent: 4241450 (1980-12-01), Blatter et al.
patent: 4264977 (1981-04-01), Deiss
patent: 4365349 (1982-12-01), Ogita et al.

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