Oscillator for television tuner

Details Oscillator for television tuner Oscillator for television tuner

1981-09-21

1983-04-19

Bookbinder, Marc E.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

331109, 334 15, 455195, 455318, H04B 126

Patent

active

043808271

ABSTRACT:
An oscillator is described for use in the tuner of a television receiver which is tuned to a selected channel by a variable tuning voltage. The oscillator provides a higher than conventional power output at relatively low channel numbers by virtue of circuitry which changes the oscillator's operating current in response to the tuning voltage reaching a predetermined value. That predetermined value is selected to correspond to a relatively low channel number at which the power output of a conventional oscillator begins to decline.

REFERENCES:
patent: 3356952 (1967-12-01), Sev
patent: 3723906 (1973-03-01), Pedersen
patent: 3813615 (1974-05-01), Okazaki
patent: 3889210 (1975-06-01), Matsuura et al.
patent: 4160213 (1979-07-01), Carter

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