Multi-Actuator System for Active Sound and Vibration Cancellation

Case ID:
0595 (OGI-D)
Web Published:
4/28/2010
Description:

Technology Overview

A multi-actuator system for sound and vibration cancellation utilizes a LMS type algorithm having an adaptive filter. However, the error signal rather than the input is filtered through an adjoin filter of the error channel to drive an adaptive filter which in turn drives, for example, a loudspeaker to provide destructive interference for noise cancellation. This method significantly decreases computational complexity for multiple-input-output systems.


  
Patent Information:
Category(s):
Engineering
For Information, Contact:
Trina Voss
Technology Development Manager
Oregon Health & Science University
4-8200
vosst@ohsu.edu
Inventors:
Eric Wan
Keywords:
Device
Software
Software - Engineering
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