Multi-system AM stereo receiver having preferred mode of operati

Details Multi-system AM stereo receiver having preferred mode of operati Multi-system AM stereo receiver having preferred mode of operati

1989-09-25

1991-06-11

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

H04H 500

Patent

active

050239090

ABSTRACT:
Stereo decoders for use in AM stereo receivers are disclosed which have two different modes of operation, one of which suffers adverse effects from the presence of co-channel interference and employs envelope detection to develope an (L+R) representative signal. When such interference is detected the decoder switches to a second mode of operation, which is less affected by the interference, and also switches to synchronous detection to develop the (L+R) representative signal.

REFERENCES:
patent: 4653095 (1987-03-01), Kahn

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