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:
Nov. 06, 2018
Filed:
Dec. 08, 2014
Ford Global Technologies, Llc, Dearborn, MI (US);
University of Cincinnati, Cincinnati, OH (US);
Ming-Ran Lee, Troy, MI (US);
Takeshi Abe, Garden City, MI (US);
Ming-te Cheng, Ann Arbor, MI (US);
Frederick Wayne Vanhaaften, Northville, MI (US);
Liqun Na, Northville, MI (US);
Teik Lim, Mason, OH (US);
Mingfeng Li, Cincinnati, OH (US);
Guohua Sun, Cincinnati, OH (US);
Tao Feng, Cincinnati, OH (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
University of Cincinnati, Cincinnati, OH (US);
Abstract
An active noise control (ANC) system includes a speaker and one or more processors. The one or more processors implement an adaptive subband filtered reference control algorithm that applies thresholds to reference and error feedback signal paths such that, in response to a series of broadband non-Gaussian impulsive reference signals indicative of road noise in the vehicle having an audible frequency range of 20 Hz to 20 kHz, weight coefficients defining an adaptive filter of the control algorithm converge and permit the ANC system to partially cancel the road noise via output of the speaker.