Automatically clarifying radio receiver

Details Automatically clarifying radio receiver Automatically clarifying radio receiver

1977-04-27

1979-07-17

Griffin, Robert L.

325418, H04B 116

Patent

active

041616979

ABSTRACT:
A radio receiver receives input signals comprised of a plurality of frequency bands lying respectively within a plurality of non-overlapping frequency channels. The signals include an itermittently present reference frequency signal. The radio receiver includes an autolock circuit for measuring the frequency of the intermittently present carrier and for generating digital signals indicating its frequency. A digital processor has inputs coupled to receive the digital signals for calculating in response thereto a selectable demodulating frequency dependent upon the frequency of the intermittently present carrier.

REFERENCES:
patent: 3588701 (1971-06-01), Kahn
patent: 3641434 (1972-02-01), Yates
patent: 3835973 (1976-12-01), Liff
patent: 3969675 (1976-07-01), Gosling
patent: 3983484 (1976-09-01), Hodama

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