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. 07, 2019
Filed:
Oct. 02, 2017
Huawei Technologies Co., Ltd., Shenzhen, CN;
Friedrich-alexander-universitaet Erlangen-nuernberg, Erlangen, DE;
Michael Buerger, Erlangen, DE;
Heinrich Löllmann, Erlangen, DE;
Walter Kellermann, Erlangen, DE;
Karim Helwani, Munich, DE;
Peter Grosche, Munich, DE;
Yue Lang, Beijing, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG, Erlangen, DE;
Abstract
A local wave field synthesis apparatus, which includes a determination module for determining desired sound pressures and desired particle velocity vectors at a plurality of control points, a computation module for computing sound pressures and particle velocity vectors at the plurality of control points based on a set of filter parameters, an optimization module for computing an optimum set of filter parameters by jointly optimizing computed sound pressures towards the desired sound pressures and computed particle velocity vectors towards the desired particle velocity vectors, and a generator module for generating the drive signals based on the optimum set of filter parameters, wherein the plurality of control points are located on one or more contours around the one or more audio zones.