Title:
SOUND PICKUP DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/105632
Kind Code:
A1
Abstract:
This sound pickup device comprises a base portion which is a nearly spherical body, and a plurality of microphones with which the base portion is provided and which has predetermined constraints. The plurality of microphones, in order to increase horizontal resolution, are arranged vertically alternately with respect to a horizontal plane including the center of the nearly spherical body.
Inventors:
YAZAWA SAKURAKO (JP)
KOBAYASHI KAZUNORI (JP)
KOBAYASHI KAZUNORI (JP)
Application Number:
PCT/JP2019/045266
Publication Date:
May 28, 2020
Filing Date:
November 19, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04R1/00; H04R1/40
Foreign References:
| US20170311080A1 | 2017-10-26 | |||
| US20150117672A1 | 2015-04-30 | |||
| JP2014165901A | 2014-09-08 | |||
| CN103389155A | 2013-11-13 | |||
| JP2017143406A | 2017-08-17 | |||
| US4332979A | 1982-06-01 | |||
| JP2018157309A | 2018-10-04 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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