Compatible four channel radio broadcast and receiving system

Details Compatible four channel radio broadcast and receiving system Compatible four channel radio broadcast and receiving system

1974-04-18

1976-02-10

Claffy, Kathleen H.

179 1GQ, H04R 500

Patent

active

039378969

ABSTRACT:
A compatible four channel system for use in conjunction with a radio transmission system for transmitting four individual audio signals over a medium having primary and secondary information channels and first and second subsidiary information channels, the primary and secondary channels carrying information that is consistent and compatible with existing monophonic and stereophonic standards.

REFERENCES:
patent: 3761628 (1973-09-01), Bauer
patent: 3814858 (1974-06-01), Parker
patent: 3875338 (1975-04-01), Bauer
Discrete-Matrix Multichannel Stereo by Cooper et al., Paper Presented Mar. 1972, Central Europe Section Audio Engineering Society.
QFMX-Quadruplex FM Transmission Using the 4-4-4 QMX Matrix System by Cooper, Journal AES, Mar. 1974, pp. 82-87.
Compatible FM Broadcasting of Panoramic Sound by Gibson et al., AES Preprint Presented Sept. 15, 1972.

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