Adaptive personal active noise reduction system

Details Adaptive personal active noise reduction system Adaptive personal active noise reduction system

2005-05-24

2005-05-24

Mei, Xu (Department: 2644)

Electrical audio signal processing systems and devices

Acoustical noise or sound cancellation

Adjacent ear

C381S072000, C381S071700

Reexamination Certificate

active

06898290

ABSTRACT:
An improved personal noise attenuation system which attenuates both tonal and broadband sound and which includes a spatially adjustable acousto-electric sensor and attenuation means including both feedback and feed forward components so as to provide a heteronomous attenuation and more complete active noise attenuation and the adjustable acousto-electric sensor is moved to exploit the changing physical characteristics of spatial silent zones in different noise fields.

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