×

Methods and systems for measuring performance of a noise cancellation system

  • US 8,340,318 B2
  • Filed: 12/28/2006
  • Issued: 12/25/2012
  • Est. Priority Date: 12/28/2006
  • Status: Active Grant
First Claim
Patent Images

1. A method for measuring performance of a noise cancellation system operable to cancel noise, comprising:

  • generating a first model of a target noise, the first model representing the target noise received at a location remote from a noise source of the target noise and within a defined environment, wherein the environment includes an aberrant noise and the first model substantially excludes said aberrant noise;

    generating a second model of a cancellation noise configured, when combined with the target noise, to at least partially cancel the target noise, the second model representing the cancellation noise in a form that is received at the location;

    using the first model and the second model, determining a cancellation error value indicative of only a portion of the target noise that remains when the target noise and the cancellation noise are combined; and

    transmitting the cancellation error value to a module operable to monitor a performance level of the noise cancellation system.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×