FM stereo receiver

Details FM stereo receiver FM stereo receiver

1987-11-12

1989-05-23

Ng, Jin F.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Pseudo stereophonic

381 10, 381 11, 381 13, H04R 500, H04H 500

Patent

active

048337153

ABSTRACT:
An FM stereo receiver includes a level detecting circuit for detecting the received electric field intensity and a pseudo stereo circuit for changing the phase of an entered signal and outputting two signals different in phase. When the level detecting circuit detects a received electric field intensity below a threshold level, monaural signals produced from outputs of a stereo demodulator are applied to the pseudo stereo circuit to produce pseudo stereo signals.

REFERENCES:
patent: 4457012 (1984-06-01), Carver
patent: 4491957 (1985-01-01), Kamalski
patent: 4691357 (1987-09-01), Kanda
patent: 4710958 (1987-12-01), Tazaki
patent: 4727580 (1988-02-01), Sakai
patent: 4742570 (1988-05-01), Ichikawa

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