Tuning apparatus for selecting preset broadcast frequencies

Details Tuning apparatus for selecting preset broadcast frequencies Tuning apparatus for selecting preset broadcast frequencies

1978-03-28

1979-07-31

Smith, Alfred E.

Tuners

With indicator

334 30, 116263, H03J 102, H03J 312, H03J 104

Patent

active

041632036

ABSTRACT:
In a tuning apparatus for a broadcast receiver having a dial scale calibrated to represent broadcast frequencies over a predetermined frequency band, and along which an indicator is movable for indicating the broadcast frequency to which the tuning apparatus is actually tuned; a sensor is movable with the indicator, at least one presetting element is movable along the dial scale for indicating a respective preset broadcast frequency and each such element coacts with the sensor whenever the broadcast frequency to which the tuning apparatus is tuned corresponds to the respective preset broadcast frequency, a control signal generator produces a control signal in response to the coaction of the sensor with each of the presetting elements, and a control circuit is responsive to the control signal to control a function of the tuning apparatus, such as, a muting and/or automatic frequency control operation of the tuning Johnson 310 239

REFERENCES:
patent: 2060216 (1936-11-01), Huber et al.
patent: 2182572 (1939-12-01), Schnell
patent: 2186828 (1940-01-01), Forstrom
patent: 2268950 (1942-01-01), Leishman
patent: 2463097 (1949-03-01), Gayer
patent: 2851622 (1958-09-01), Hall
patent: 3242362 (1966-03-01), Ciliax
patent: 3953800 (1976-04-01), Nakamura et al.
patent: 3962641 (1976-06-01), Suwa

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