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:
Dec. 03, 2013
Filed:
Mar. 25, 2011
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);
Teik Lim, Mason, OH (US);
Mingfeng LI, Cincinnati, OH (US);
Jie Duan, 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);
Teik Lim, Mason, OH (US);
Mingfeng Li, Cincinnati, OH (US);
Jie Duan, Cincinnati, OH (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A multiple error filtered-x least mean square (MEFxLMS) algorithm using a channel equalization virtual secondary path for an active noise control/cancellation (ANC) system for treating noise in a Multiple-Input Multiple-Output (MIMO) system. The channel equalization technique equalizes amplitude levels of the estimated response of all primary channels to overcome limitations caused by the frequency dependent property of standard filtered-x least mean square (FxLMS) algorithm, reduce the variation of convergence speed existed in the multiple channels, and improve the overall performance of the control system. The convergence property of the algorithm is analyzed in the frequency domain.