Radio receiver with frequency selection and muting

Details Radio receiver with frequency selection and muting Radio receiver with frequency selection and muting

1978-05-30

1979-10-09

Richardson, Robert L.

325455, 325464, 325468, 325478, H04B 110

Patent

active

041707605

ABSTRACT:
A radio signal receiver having a demodulator circuit with a variable local oscillator is provided with a station selector including a record medium for storing frequency selection information at spaced locations thereon, a conversion circuit for reading the frequency selection information at a selected location by aligning that location with a reading assembly and converting the respective information into a signal for determining the output frequency of the local oscillator, and a signal generating circuit responsive to a lack of alignment of the reading assembly with a location at which frequency selection information is recorded for generating a signal indicating that such lack of alignment exists and which may be effective to cause muting of the output of the demodulator circuit.

REFERENCES:
patent: 3437936 (1969-04-01), Tompson
patent: 3835384 (1974-09-01), Liff
patent: 3962641 (1976-06-01), Suwa
patent: 4015253 (1977-03-01), Goldstein
patent: 4122395 (1978-10-01), Schotz et al.

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