Title:
PIEZOELECTRIC CERAMIC SPEAKER AND FREQUENCY DIVISION SYSTEM FOR SMART TERMINAL
Document Type and Number:
WIPO Patent Application WO/2015/131732
Kind Code:
A1
Abstract:
A piezoelectric ceramic speaker and a frequency division system for a smart terminal. The piezoelectric ceramic speaker comprises three piezoelectric ceramic pieces having different frequency response widths, namely, a low frequency piezoelectric ceramic piece, an intermediate frequency piezoelectric ceramic piece, and a high frequency piezoelectric ceramic piece; the three pieces are combined together by being nested one in another in a same plane. The technical solution of the present invention divides a piezoelectric ceramic speaker into piezoelectric ceramic pieces corresponding to different frequency bands, and processes audio signals of different frequency bands with more specificity, thereby increasing the frequency response width of the piezoelectric ceramic speaker, substantially enhancing the sound quality of a smart terminal using a piezoelectric ceramic speaker of the present invention, and satisfying users' requirement for sound quality.
Inventors:
ZHAO YANTAO (CN)
Application Number:
PCT/CN2015/071985
Publication Date:
September 11, 2015
Filing Date:
January 30, 2015
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H04R17/10
Foreign References:
| CN102037740A | 2011-04-27 | |||
| CN102456350A | 2012-05-16 | |||
| US20120170786A1 | 2012-07-05 |
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (CN)
北京安信方达知识产权代理有限公司 (CN)
北京安信方达知识产权代理有限公司 (CN)
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