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:
May. 31, 2016
Filed:
Oct. 17, 2012
Applicant:
Sivantos Pte. Ltd., Singapore, SG;
Inventors:
Sebastian Pape, Erangen, DE;
Tobias Wurzbacher, Fuerth, DE;
Assignee:
Sivantos Pte. Ltd., Singapore, SG;
Primary Examiner:
Int. Cl.
CPC ...
H04B 15/00 (2006.01); H04R 3/02 (2006.01); G10K 11/178 (2006.01); H03G 3/00 (2006.01); H03F 1/36 (2006.01); H04R 25/00 (2006.01);
U.S. Cl.
CPC ...
H04R 3/02 (2013.01); G10K 11/1784 (2013.01); H03F 1/36 (2013.01); H03G 3/001 (2013.01); H04R 25/453 (2013.01);
Abstract
Acoustic feedback in an audio device is reduced or eliminated via a feedback compensator. The feedback compensator disposes of at least one adaptive filter whose adaptation is governed by a step-size parameter μ. A step-size parameter μ of the adaptive filter is set at a high level to eliminate acoustic feedback and the parameter μ is decreased when a critical excitation signal is detected. This way to proceed allows for efficient elimination of feedback whistling while required environment signals are retained.