Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
April 19, 2011
Patent Application Number
11767803
Date Filed
June 25, 2007
Patent Primary Examiner
Patent abstract
A noise reduction system includes a microphone configured to detect an acoustic signal. A first digitizer converts an output of the microphone into a discrete output signal. An acoustic sensor detects structure-borne noise, and a second digitizer converts an output of the acoustic sensor into a discrete acoustic noise reference signal. A noise compensation circuit processes the discrete output signal based on the discrete acoustic noise reference signal.
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