公开(公告)号：EP0936842A1

公开(公告)日：1999-08-18

申请号：EP99108305.6

申请日：1996-09-25

Applicant: NOISE CANCELLATION TECHNOLOGIES, INC.

Inventor： Eatwell, Graham Paul ,  Machacek, Steven L. ,  Parrella, Michael J.

IPC: H04R25/00 ,  H04B1/00 ,  H03B29/00 ,  H04R17/00

CPC classification number: H04R17/00 ,  H04R7/04

Abstract: A loudspeaker system module is disclosed, the module comprising a piezoelectric element subject to displacement by applied electric potential and having a top side and an under side, a panel diaphragm that is driven by the piezoelectric element and to which the under side of the piezoelectric element is joined, and means for reducing structural resonances in the panel diaphragm.

Abstract translation: 公开了一种扬声器系统模块，该模块包括经受施加电位而位移并具有顶侧和下侧的压电元件，由压电元件驱动的面板隔膜，压电元件的下侧 和用于减小面板隔膜中的结构共振的装置。