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System for active noise control with audio signal compensation

  • US 8,315,404 B2
  • Filed: 03/12/2012
  • Issued: 11/20/2012
  • Est. Priority Date: 11/20/2008
  • Status: Active Grant
First Claim
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1. A method of generating a plurality of estimated path filters of an active noise control system comprising:

  • selecting a first physical path present in the active noise control system;

    selecting a second physical path present in the active noise control system;

    inputting a first signal through the first physical path to generate a first output signal;

    inputting the first signal through the second physical path to generate a second output signal;

    comparing the first signal to the first output signal to generate a first transfer function based on the first physical path;

    comparing the first signal to the second output signal to generate a second transfer function based on the second physical path; and

    generating a first estimated path filter based on the first transfer function and a second estimated path filter based on the second transfer function.

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