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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.:

US 8290189 B1

PDFFull Text
Expired
Date of Patent:
Oct. 16, 2012

Filed:

Jan. 21, 2010

Blind source separation method and acoustic signal processing system for improving interference estimation in binaural wiener filtering

Applicants:

Walter Kellermann, Eckental, DE;

Yuanhang Zheng, Erlangen, DE;

Inventors:

Walter Kellermann, Eckental, DE;

Yuanhang Zheng, Erlangen, DE;

Assignee:

Siemens Aktiengesellschaft, Munich, DE;

Attorneys:

Laurence A. Greenberg

Werner H. Stemer

Ralph E. Locher

Primary Examiner:

Davetta W Goins

Assistant Examiner:

Phylesha Dabney

Int. Cl.
CPC ...
H04B 15/00 (2006.01); H04R 25/00 (2006.01); H04R 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method and an acoustic signal processing system for noise reduction of a binaural microphone signal (x, x) with one target point source and M interfering point sources (n, n, . . . , n) as input sources to a left and a right microphone of a binaural microphone system, include: where His the Wiener filter, Φis the auto power spectral density of the sum of all of the M interfering point sources components (x1,n, x2,n) contained in the left and right microphone signals and Φis the auto power spectral density of the sum of the left and right microphone signals. Due to the linear-phase property of the calculated Wiener filter, original binaural cues are perfectly preserved not only for the target source but also for the residual interfering sources.

Find Patent Forward Citations

Kellermann, Walter. (2012). Blind source separation method and acoustic signal processing system for improving interference estimation in binaural wiener filtering (U.S. Patent No. 8290189). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8290189

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