Invention Grant
- Patent Title: Apparatus and method for driving an array of loudspeakers
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Application No.: US15722637Application Date: 2017-10-02
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Publication No.: US10284993B2Publication Date: 2019-05-07
- Inventor: Michael Buerger , Heinrich Löllmann , Walter Kellermann , Karim Helwani , Peter Grosche , Yue Lang
- Applicant: Huawei Technologies Co., Ltd. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
- Applicant Address: CN Shenzhen DE Erlangen
- Assignee: Huawei Technologies Co., Ltd.,FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
- Current Assignee: Huawei Technologies Co., Ltd.,FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
- Current Assignee Address: CN Shenzhen DE Erlangen
- Agency: Leydig, Voit & Mayer, Ltd.
- Main IPC: H04S7/00
- IPC: H04S7/00 ; H04R5/02

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.
Public/Granted literature
- US20180027350A1 APPARATUS AND METHOD FOR DRIVING AN ARRAY OF LOUDSPEAKERS Public/Granted day:2018-01-25
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