Electrical audio signal processing systems and devices – One-way audio signal program distribution – Multiple channel
Patent
1992-01-06
1994-03-22
Isen, Forester W.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Multiple channel
H04B 300
Patent
active
052972119
ABSTRACT:
In an acoustic device for custom installation in which one can listen to music in a zone which is different from a zone where an acoustic device main unit, e.g., an audio amplifier or a CD player, is located, turning on or off of loudspeakers is remote-controlled in one zone. An remote control signal from a remote-controller is received by a remote controller signal receiver in that zone and transmitted to a switch control section (microcomputer). The switch control section identifies the particular zone in which the remote control signal has been produced and switches a transmission on/off switch to turn on or off the loudspeakers in that zone. The acoustic device also includes independent signal paths, selective mixed signal supply paths which selectively combines the remote control signals provided from the plural zones and supplies the selective combined remote control signal and all mixed signal supply path which combines all the remote control signals and supplies the combined remote control signal and a remote control signal can be supplied via one these signal paths depending upon the situation of use of acoustic devices whereby some acoustic devices can be controlled only from a single zone, others can be controlled from selected zones and still others can be controlled from all zones.
REFERENCES:
patent: 2179043 (1939-11-01), Kimball
patent: 3809810 (1974-05-01), Walker et al.
patent: 4979217 (1990-12-01), Shipley
patent: 5131048 (1992-07-01), Farenelli et al.
Isen Forester W.
Yamaha Corporation
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