Title:
PIEZOELECTRIC BONE CONDUCTION RECEIVER AND PORTABLE ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/014155
Kind Code:
A1
Abstract:
A piezoelectric bone conduction receiver and a portable electronic device. The piezoelectric bone conduction receiver comprises: a piezoelectric bone conduction receiver driving unit serving as an acoustic vibration element and a piezoelectric driving and signal processing circuit connected to the piezoelectric bone conduction receiver driving unit, and also comprises a driving signal switching module. The piezoelectric bone conduction receiver driving unit at least comprises two piezoelectric bone conduction receiver driving modules which can independently perform driving. The piezoelectric bone conduction receiver driving modules are separately connected to the driving signal switching module. The driving signal switching module is connected to the piezoelectric driving and signal processing circuit. The driving signal switching module is used for controlling phases of piezoelectric driving signals output by the piezoelectric driving and signal processing circuit to the piezoelectric bone conduction receiver driving modules, so that the phases of the piezoelectric driving signals received by the piezoelectric bone conduction receiver driving modules are same or opposite. The piezoelectric bone conduction receiver and the portable electronic device have a beneficial effect of improving call privacy.
Inventors:
YAN BIXIANG (CN)
YUAN SHIMING (CN)
YUAN SHIMING (CN)
Application Number:
PCT/CN2014/079157
Publication Date:
February 05, 2015
Filing Date:
June 04, 2014
Export Citation:
Assignee:
GUANG DONG OPPO MOBILE TELECOMM CORP LTD (CN)
KINGTONE INNOVATION BEIJING TECHNOLOGY CO LTD (CN)
KINGTONE INNOVATION BEIJING TECHNOLOGY CO LTD (CN)
International Classes:
H04R17/00; H04M1/03
Foreign References:
| CN103002388A | 2013-03-27 | |||
| CN1402953A | 2003-03-12 | |||
| CN103369440A | 2013-10-23 | |||
| CN203368744U | 2013-12-25 | |||
| US20100310084A1 | 2010-12-09 |
Attorney, Agent or Firm:
YOGO PATENT & TRADEMARK AGENCY LIMITED COMPANY (CN)
广州粤高专利商标代理有限公司 (CN)
广州粤高专利商标代理有限公司 (CN)
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