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)
OHASHI YOSHIO (JP)
Application Number:
PCT/JP2019/001970
Publication Date:
October 03, 2019
Filing Date:
January 23, 2019
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H04R17/00; H04R1/02; H04R7/12; H04R7/22; H04R19/02
Foreign References:
| JP2011151760A | 2011-08-04 | |||
| JP2011130366A | 2011-06-30 | |||
| JPS60145792U | 1985-09-27 | |||
| JP2007228557A | 2007-09-06 | |||
| JP2001045588A | 2001-02-16 | |||
| JP2007028205A | 2007-02-01 | |||
| JPS5995488A | 1984-06-01 | |||
| JP2002281597A | 2002-09-27 | |||
| JP2016012777A | 2016-01-21 | |||
| JPS57204799U | 1982-12-27 | |||
| JP2016086414A | 2016-05-19 | |||
| JPH09327093A | 1997-12-16 |
Attorney, Agent or Firm:
SUGIURA, Masatomo et al. (JP)
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