The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2006
Filed:
Apr. 04, 2003
Applicant:
Philip Edward Arthur Stuart, Chatham, CA;
Inventor:
Philip Edward Arthur Stuart, Chatham, CA;
Assignee:
Siemens VDO Automotive, Inc., Chatham, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An active noise control system () and method compensates for changes in a microphone output to maintain accurate noise control. A calibration signal reflecting a desired microphone output is generated and stored in an active noise control module (). During operation, the active noise control module () compares an actual microphone output signal with the calibration signal and compensates for any changes in the actual output signal before any noise compensation or cancellation function occurs.