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. 03, 2009
Filed:
Nov. 07, 2002
Douglas L. Jones, Champaign, IL (US);
Michael E. Lockwood, Champaign, IL (US);
Robert C. Bilger, Champaign, IL (US);
Carolyn T. Bilger, Legal Representative, Champaign, IL (US);
Albert S. Feng, Champaign, IL (US);
Charissa R. Lansing, Champaign, IL (US);
William D. O'brien, Champaign, IL (US);
Bruce C. Wheeler, Champaign, IL (US);
Mark Elledge, Austin, TX (US);
Chen Liu, Lisle, IL (US);
Douglas L. Jones, Champaign, IL (US);
Michael E. Lockwood, Champaign, IL (US);
Robert C. Bilger, Champaign, IL (US);
Carolyn T. Bilger, legal representative, Champaign, IL (US);
Albert S. Feng, Champaign, IL (US);
Charissa R. Lansing, Champaign, IL (US);
William D. O'Brien, Champaign, IL (US);
Bruce C. Wheeler, Champaign, IL (US);
Mark Elledge, Austin, TX (US);
Chen Liu, Lisle, IL (US);
Other;
Abstract
System () is disclosed including an acoustic sensor array () coupled to processor (). System () processes inputs from array () to extract a desired acoustic signal through the suppression of interfering signals. The extraction/suppression is performed by modifying the array () inputs in the frequency domain with weights selected to minimize variance of the resulting output signal while maintaining unity gain of signals received in the direction of the desired acoustic signal. System () may be utilized in hearing aids, voice input devices, surveillance devices, and other applications.