Patent
1976-11-11
1978-01-17
Griffin, Robert L.
325 51, 325 56, 325 63, 325453, H04B 132
Patent
active
040694550
ABSTRACT:
A radio receiver is provided with a local oscillator whose frequency is switched so that the receiver is normally receptive to the stronger signal but so that the receiver is momentarily and periodically made receptive to the other weaker signal. A circuit compares the relative strengths of the two signals, and if the weaker signal becomes stronger than the previously stronger signal, then reception is switched to the now stronger signal with momentary and periodic reception of the now weaker signal. Thus, interference-free and good reception of the transmitted information is provided.
REFERENCES:
patent: 3443228 (1969-05-01), Brenner et al.
patent: 3470481 (1969-09-01), Myers et al.
patent: 3497813 (1970-02-01), Gallagher
patent: 3532988 (1970-10-01), Magnuski
patent: 3617895 (1971-11-01), Tomsa et al.
patent: 3619788 (1971-11-01), Giles, Jr.
patent: 3983492 (1976-09-01), Fisher et al.
General Electric Company
Griffin Robert L.
Ng Jin F.
Williams James J.
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