公开(公告)号：US09736593B1

公开(公告)日：2017-08-15

申请号：US15131041

申请日：2016-04-18

Applicant: GlobalMEMS Co., Ltd.

Inventor： Shih-Hsiung Tseng ,  Ming-Ching Wu

IPC: H04R25/00 ,  H04R17/00 ,  H04R19/00 ,  H04R23/00

CPC classification number: H04R17/005 ,  H04R7/06 ,  H04R17/00 ,  H04R19/005 ,  H04R23/006 ,  H04R2201/003 ,  H04R2217/01 ,  H04R2400/01

Abstract: An electro-acoustic transducer includes a base and a plurality of vibration portions. Each of the vibration portions includes a piezoelectric transduction layer and has two connection ends and a free end. The connection portions are connected to the base, and the free ends are separated from one another. The piezoelectric transduction layers are adapted to receive electrical signals to deform, such that the vibration portions are driven to vibrate and generate corresponding acoustic waves. The vibration portions are adapted to receive acoustic waves to vibrate, such that the piezoelectric transduction layers are driven to deform and generate corresponding electrical signals.