Adaptive personal active noise system
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United States of America Patent
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app pub date -
Apr 13, 2006
filing date -
May 6, 1997
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Abandoned
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Abstract
An improved active noise reduction system which has a transducer, an electro-acoustic sensing means including adjacent to the transducer, an attenuation means with electro-acoustic sensing means to attenuate selected sound frequencies, said system utilizing both feed forward control means and feedback control means comprising a heteronomous electronic controller with algorithmic transfer function and said controller being individually operable.
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