Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent
1993-04-01
1996-01-02
Isen, Forester W.
Electrical audio signal processing systems and devices
Acoustical noise or sound cancellation
Adjacent ear
381 72, 381 74, 381103, G10K 1116, H03G 500
Patent
active
054816157
ABSTRACT:
An improved audio system designed to maintain a desired sound at the ear of a listener by using an equalization filter (2). The equalization filter (2) is continuously adjusted in response to the signal (9) from a sensor (8) which monitors the sound close to the listener's ear. The audio system can be combined with an active noise control system (3) to reduce interference from external noise.
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Eatwell Graham P.
Langley Andrew
Hiney James W.
Isen Forester W.
Noise Cancellation Technologies, Inc.
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