Automatic multi-system AM stereo receiver using existing single-

Details Automatic multi-system AM stereo receiver using existing single- Automatic multi-system AM stereo receiver using existing single-

1985-08-28

1987-02-03

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

329131, 329146, 329178, H04H 500

Patent

active

046413413

ABSTRACT:
Disclosed is an AM stereo receiver capable of receiving signals representing at least two different types of AM stereo systems, but using an integrated circuit (IC) decoder designed to properly decode received signals representing only one of the two types of systems. The receiver includes circuitry coupled to the IC which adapts the IC for also properly decoding received signals representing the second type of AM stereo system as well. Circuitry is also disclosed for automatically detecting which type of AM stereo system is being received and for configuring the receiver's decoding circuits to properly decode the received stereo signals.

REFERENCES:
patent: 4420658 (1983-12-01), Loughlin
patent: 4426728 (1984-01-01), Kahn
patent: 4535470 (1985-08-01), Yokoya et al.
patent: 4536885 (1985-08-01), Loughlin

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