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:
Sep. 12, 2023
Filed:
Jul. 02, 2019
Harman Becker Automotive Systems Gmbh, Karlsbad-Ittersbach, DE;
Markus Christoph, Straubing, DE;
Nikos Zafeiropoulos, Straubing, DE;
Juergen Zollner, Straubing, DE;
Vasudev Kandade Rajan, Straubing, DE;
Harman Becker Automotive Systems GmbH, Karlsbad-Ittersbach, DE;
Abstract
Methods and systems are provided for automatic noise control. Automatic noise control includes controlling a shadow noise control transfer function based on a shadow error signal and a filtered or unfiltered reference signal, generating the shadow error signal based on a filtered or unfiltered shadow anti-noise signal and an error signal, and substituting the noise control transfer function by the shadow noise control transfer function if the shadow error signal is smaller than the error signal.