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Patent Searching and Data


Title:
AUDIO DEVICE AND AUDIO PLAYBACK DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/187547
Kind Code:
A1
Abstract:
The present invention is an audio device that has an acoustic sheet which is a thin film material having capacitive characteristics and which has a curved shape. The acoustic sheet has a first region that is actively driven by an input signal, and a second region that is not actively driven by the input signal, and the first region is formed on at least a portion on the outer side of the second region.

Inventors:
NAKAGAWA TOSHIYUKI (JP)
OHASHI YOSHIO (JP)
Application Number:
JP2019/001970
Publication Date:
October 03, 2019
Filing Date:
January 23, 2019
Export Citation:
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Assignee:
SONY CORP (JP)
International Classes:
H04R17/00; H04R1/02; H04R7/12; H04R7/22; H04R19/02
Foreign References:
JP2011151760A2011-08-04
JP2011130366A2011-06-30
JPS60145792U1985-09-27
JP2007228557A2007-09-06
JP2001045588A2001-02-16
JP2007028205A2007-02-01
JPS5995488A1984-06-01
JP2002281597A2002-09-27
JP2016012777A2016-01-21
JPS57204799U1982-12-27
JP2016086414A2016-05-19
JPH09327093A1997-12-16
Attorney, Agent or Firm:
SUGIURA, Masatomo et al. (JP)
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