Title:
EARPHONE DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/162409
Kind Code:
A1
Abstract:
An earphone device having a baffle plate housed inside a housing and having a piezoelectric element connected to the baffle plate. The baffle plate is fixed to the housing either directly or via another element. The piezoelectric element is vibrated and generates sound waves, as a result of the input of an electric signal.
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| JPH06292294 | PLURAL FUNCTION TYPE EARPHONE SET |
| JP2001309476 | SOUND INFORMATION SWITCHING DEVICE |
| WO/2013/050804 | A HEADSET APPARATUS REGISTERING MOVEMENT IN THE HOUSING |
Inventors:
KONUMA SHINSUKE (JP)
Application Number:
PCT/JP2013/059871
Publication Date:
October 09, 2014
Filing Date:
April 01, 2013
Export Citation:
Assignee:
PIONEER CORP (JP)
PIONEER TOHOKU CORP (JP)
PIONEER TOHOKU CORP (JP)
International Classes:
H04R1/10; H04R17/00
Foreign References:
| JPH09252496A | 1997-09-22 | |||
| JPH03139999A | 1991-06-14 |
Attorney, Agent or Firm:
NAKAMURA, Toshinobu et al. (JP)
Akinobu Nakamura (JP)
Akinobu Nakamura (JP)
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