公开(公告)号：US20180027325A1

公开(公告)日：2018-01-25

申请号：US15541473

申请日：2016-01-08

Applicant: KOREA UNIVERSITY OF TECHNOLOGY AND EDUCATION INDUS TRY-UNIVERSITY COOPERATION FOUNDATION

Inventor： Byungki KIM

IPC: H04R1/40 ,  H04R1/08

CPC classification number: H04R1/406 ,  H04R1/083 ,  H04R1/086 ,  H04R7/04 ,  H04R19/04 ,  H04R29/004 ,  H04R31/00 ,  H04R2201/003 ,  H04R2201/405 ,  H04R2440/03

Abstract: A microphone comprises: a vibration member having a plate shape and formed so as to have elasticity and cause bending due to sound waves; a case having a depressed groove, which forms an air layer between the depressed groove and the vibration member since the vibration member is stacked on an upper part thereof, and coupled to the upper part of the depressed groove such that the vibration member is vibrated by sound waves; and a vibration detection unit provided on the vibration unit and the case and measuring the vibration of the vibration member vibrating by sound waves on the case, wherein when the vibration member vibrates, the air in the air layer flows so as to damp the vibration of the vibration member.