Stereo FM receiver, noise control circuit therefor

Details Stereo FM receiver, noise control circuit therefor Stereo FM receiver, noise control circuit therefor

1994-07-11

1995-07-11

Kuntz, Curtis

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

381 11, 381 94, H04H 500

Patent

active

054328543

ABSTRACT:
A noise control system for a FM stereo receiver senses the presence of noise outside of the FM stereo transmission bandwidth at an output of a FM detector and uses variations of amplitude of the sensed noise to control stereo channel separation and audio bandwidth control circuits of a stereo decoder circuit of the stereo receiver.

REFERENCES:
patent: 4029906 (1977-06-01), Takahaski
patent: 4063039 (1977-12-01), Endres et al.
patent: 4390749 (1983-06-01), Pearson
patent: 4694500 (1987-04-01), Tazaki et al.
patent: 5035643 (1991-07-01), Ueno
patent: 5036543 (1991-07-01), Ueno
Stremler, Ferrell G., Introduction to Communication Systems, 3rd Ed. Addison-Wesley Pub. Co., 1990, pp. 345-349.

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