System for indicating multipath interference in radio receiver

Details System for indicating multipath interference in radio receiver System for indicating multipath interference in radio receiver

1979-12-17

1982-05-04

Chin, Tommy P.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455226, 334 86, H04B 1700, H03J 104

Patent

active

043285899

ABSTRACT:
A radio receiver such as an FM stereophonic receiver includes a detector circuit connected to an intermediate frequency amplifying stage in the receiver for delivering a signal responsive to the signal strength and the degree of multipath interference, and a light emission section controlled in its average brightness and flicker in accordance with the detected signal so as to visually indicate the signal strength and the degree of multipath interference, respectively. The light emission section preferably is used also as another indicating device such as a dial pointer or a stereophonic indicator.

REFERENCES:
patent: 3732498 (1973-05-01), Beckman
patent: 3753120 (1973-08-01), Ohsawa
patent: 3881155 (1975-04-01), Saikaishi
patent: 3896386 (1975-07-01), Ohsawa
patent: 3987401 (1976-10-01), Irving

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