公开(公告)号：US09628605B2

公开(公告)日：2017-04-18

申请号：US14801543

申请日：2015-07-16

Applicant: Samsung Display Co., Ltd.

Inventor： Taehee Lee ,  Wonsang Park ,  Yijoon Ahn ,  Myungim Kim ,  Sukman Yang ,  Yongsuk Yeo

IPC: H04M1/725 ,  H04M1/03 ,  H04M1/60

CPC classification number: H04M1/72569 ,  H04M1/03 ,  H04M1/6008 ,  H04M1/6016

Abstract: A mobile communication device includes: a first sound transceiver including a first lower electrode, a first upper electrode, and a first vibration plate between the first lower electrode and the first upper electrode; a second sound transceiver including a second lower electrode, a second upper electrode, and a second vibration plate between the second lower electrode and the second upper electrode; a position sensor configured to perform a detection of a relative positional relationship between the first and second sound transceivers; and a controller configured to apply a sound signal to one of the first and second sound transceivers and detect a sound signal from the other one thereof, based on the detection result provided from the position sensor.