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:
Aug. 15, 2017
Filed:
Mar. 27, 2015
Applicant:
Harman Becker Automotive Systems Gmbh, Karlsbad, DE;
Inventors:
Assignee:
Harman Becker Automotive Systems GmbH, Karlsbad, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10K 11/178 (2006.01); H04R 3/00 (2006.01);
U.S. Cl.
CPC ...
G10K 11/178 (2013.01); H04R 3/002 (2013.01); G10K 2210/1081 (2013.01); G10K 2210/3028 (2013.01); H04R 2410/05 (2013.01);
Abstract
A noise reducing sound reproduction system comprises a loudspeaker that is connected to a loudspeaker input path and that radiates noise reducing sound. A microphone is connected to a microphone output path and picks up the noise or a residual thereof. An active noise reduction filter is connected between the microphone output path and the loudspeaker input path, and the active noise reduction filter comprises at least one shelving filter.