Separation control circuit

Details Separation control circuit Separation control circuit

1985-08-16

1986-12-30

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

H04H 500

Patent

active

046334971

ABSTRACT:
A separation control circuit for a stereophonic receiver in which both the amount of separation between right- and left- channel signals is reduced and the amplification gain for higher frequency components of the two channel signals is reduced as the field strength of the received signal decreases. Thereby, the signal-to-noise ratio of the reproduced signal in the presence of a weak received signal is significantly improved. A single low-pass filter for each channel is used for both functions.

REFERENCES:
patent: 3943293 (1976-03-01), Bailey
patent: 4039755 (1977-08-01), Berkovitz
patent: 4198543 (1980-04-01), Schertz et al.
patent: 4221928 (1980-09-01), Franssen et al.

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