Adaptive personal active noise reduction system
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United States of America Patent
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May 24, 2005
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N/A
app pub date -
Mar 27, 2000
filing date -
May 6, 1997
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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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