Encoding and decoding system for quadraphonic sound

Details Encoding and decoding system for quadraphonic sound Encoding and decoding system for quadraphonic sound

1974-07-02

1976-07-06

Olms, Douglas W.

H04R 500

Patent

active

039683311

ABSTRACT:
Method of encoding quadraphonic signals in four channels, in which for each side the front signal is recorded together with the phase-shifted back signal, and the back signal is recorded together with the supplementarily phase-shifted front signal.

REFERENCES:
patent: 3218393 (1965-11-01), Kahn
patent: 3564162 (1971-02-01), Bauer
patent: 3761628 (1973-09-01), Bauer
patent: 3839602 (1974-10-01), Takahashi
Multiplex Methods for FM Broadcast of Four-Channel Stereo Signals by Halstead et al., Journal AES, Dec. 1970 pp. 1970, 630.

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