Title:
ACOUSTIC REPRODUCTION DEVICE, METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2017/169888
Kind Code:
A1
Abstract:
This technology relates to an acoustic reproduction device, method, and program, which enable acoustic reproduction with high sound quality and good directive properties at a lower cost. This acoustic reproduction device is provided with: an amplification unit for amplifying an acoustic signal; a plurality of electro-acoustic conversion units that have capacitive load characteristics and that output sound on the basis of the acoustic signal outputted from the amplification unit; and a switching unit for switching the connection of the electro-acoustic conversion units to the amplification unit so that among the plurality of electro-acoustic conversion units, any one or more of the electro-acoustic conversion units are connected to the amplification unit. This technology can be applied to an acoustic reproduction device for example.
Inventors:
NAKAGAWA TOSHIYUKI (JP)
OHASHI YOSHIO (JP)
OHASHI YOSHIO (JP)
Application Number:
PCT/JP2017/010869
Publication Date:
October 05, 2017
Filing Date:
March 17, 2017
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H04R3/12; H04R1/32; H04R1/40; H04R3/00; H04R17/00; H04R19/02
Foreign References:
| JP2006114990A | 2006-04-27 | |||
| JP2009065427A | 2009-03-26 | |||
| JP2008258815A | 2008-10-23 | |||
| JP2013057705A | 2013-03-28 | |||
| JP2002359890A | 2002-12-13 | |||
| JPH1175284A | 1999-03-16 |
Other References:
See also references of EP 3439326A4
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
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