Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Rogerio Guedes Alves0
Walter Zuluaga0
Date of Patent
May 6, 2014
Patent Application Number
12984941
Date Filed
January 5, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
An active noise cancellation controller for performing noise attenuation in a system over a predetermined frequency rang. The controller comprises several components: a first input for a reference signal indicative of a noise level; a second input for receiving an error signal indicative of a remnant noise level; an output for providing a noise cancellation signal; a fixed feedback controller for processing the error signal; a fixed feed-forward controller for processing the reference signal; and an adaptive feed-forward controller having a digital adaptive finite impulse response filter arranged for operation on the reference signal the error signal.
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