FM stereo receiver

Details FM stereo receiver FM stereo receiver

1990-05-23

1991-12-31

Ng, Jin F.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

381 13, 381 18, 381 22, H04H 500, H04R 500

Patent

active

050777971

ABSTRACT:
An FM stereo receiver for receiving FM stereo broadcast signals includes a pro-logic surround system in which the left stereo signal, a right stereo signal, a stereo sum signal and a stereo difference signal are selectively emphasized. Also includes a noise signal detector for detecting the noise signal in the received signal, and a device for disabling the pro-logic surround system when the noise signal is detected.

REFERENCES:
patent: 3883692 (1975-05-01), Tsurushima
patent: 4419541 (1983-12-01), Kishi
patent: 4799260 (1989-01-01), Mandell et al.
patent: 4833715 (1989-05-01), Sakai
patent: 4933768 (1990-06-01), Ishikawa

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