Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent
1988-06-07
1990-12-11
Isen, Forester W.
Electrical audio signal processing systems and devices
Acoustical noise or sound cancellation
Adjacent ear
381 72, G10K 1116
Patent
active
049776002
ABSTRACT:
A sound cancellation system wherein a pair of sensors and actuators are positioned immediately adjacent an associated ear of an inhabitant of an enclosure so as to provide a cancellation zone immediately adjacent an associated ear without interfering with adjacent zones. A controller receives a synchronization signal so as to cancel a selected noise associated with a synchronization signal. The sensors and actuators are mounted to a seat which is to be occupied by an inhabitant of the enclosure.
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"Noise+Noise=Silence", Steve Cropley; Autoweek, Apr. 25, 1988, pp. 33,34.
John Free, "Noise Zapper", Popular Science, Jan., 1987, pp. 76,77,96.
Isen Forester W.
Noise Cancellation Technologies, Inc.
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