Sound multiplex receiver

Details Sound multiplex receiver Sound multiplex receiver

1986-05-19

1987-10-27

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

351 11, 351 13, 455222, 455297, H04H 500

Patent

active

047035013

ABSTRACT:
A multiplex sound receiver in which a detection signal is extracted from a broadcast to indicate whether the broadcast is monaural, stereo, or multi-lingual. The detection signal is used for controlling the separating of the channels. According to the invention, the detection signal is processed in accordance with the strength of the broadcast or the noise level. For instance, the detection signal is integrated over a period that is increased when the field strength decreases.

REFERENCES:
patent: 4399325 (1983-08-01), Tanaka et al.
patent: 4408098 (1983-10-01), Kamalski

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