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. 30, 2023
Filed:
Apr. 27, 2022
Harman International Industries, Incorporated, Stamford, CT (US);
Kevin J. Bastyr, Franklin, MI (US);
Harman International Industries, Incorporated, Stamford, CT (US);
Abstract
In at least one embodiment, an active noise cancellation (ANC) system is provided. The ANC system includes at least one microphone, a first filter, a first controllable filter, and at least one controller. The at least one microphone provides an error signal indicative of noise and an anti-noise sound within the cabin. The first filter modifies a transfer function between the at least one microphone and at least one remote microphone location to generate an estimated remote microphone error signal based at least on the error signal. The first controllable filter generates the anti-noise signal based on the estimated remote microphone error signal. The controller receives receive a first signal indicative of the vehicle exhibiting a fast-adapting event controls the first filter to execute a predetermined filter based on the first signal to reduce a group delay associated with the first filter.