Wireless microphone with FM receiver muting system responsive to

Details Wireless microphone with FM receiver muting system responsive to Wireless microphone with FM receiver muting system responsive to

1977-02-11

1978-08-15

Griffin, Robert L.

325403, 325478, H04B 110

Patent

active

041076133

ABSTRACT:
A wireless microphone and receiver in which the receiver output is muted whenever there is insufficient carrier present at the receiver to provide a clear noise free recovered audio or when there is radio frequency interference of a nature in strength to cause amplitude modulation on the IF envelope at the input to the FM detector. The invention places the receiver into a sampling mode whenever it is in a muted condition to conserve batteries and to provide a visual indication of such condition.

REFERENCES:
patent: 2509381 (1950-05-01), Werner et al.
patent: 3188571 (1965-06-01), Michael
patent: 3323066 (1967-05-01), Kurtz
patent: 3482166 (1969-12-01), Gleason
patent: 3569840 (1971-03-01), Tanaka et al.

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