Title:
SOUND DETECTION DEVICE AND SOUND DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2014/102938
Kind Code:
A1
Abstract:
This sound detection device is a sound detection device that is mounted in a mobile body, which is provided with: a sound detection unit which detects peripheral sound of the mobile body; and an assessment unit which, on the basis of a degree of correlation between sound pressure information of a pre-set first frequency band in the peripheral sound detected by the sound detection unit and sound pressure information of a second frequency band of different frequencies than the first frequency band in the peripheral sound detected by the sound detection unit, assesses whether a sound source to be detected in the periphery of the mobile body exists and/or approaches to the mobile body and/or withdraws from the mobile body.
Inventors:
SATO JUN (JP)
FUNAYAMA RYUJI (JP)
TAKATANI TOMOYA (JP)
KINDO TOSHIKI (JP)
FUKAMACHI HIDEO (JP)
SHIMIZU HIROAKI (JP)
FUNAYAMA RYUJI (JP)
TAKATANI TOMOYA (JP)
KINDO TOSHIKI (JP)
FUKAMACHI HIDEO (JP)
SHIMIZU HIROAKI (JP)
Application Number:
PCT/JP2012/083701
Publication Date:
July 03, 2014
Filing Date:
December 26, 2012
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
International Classes:
G01H3/00; G08G1/16; G01S11/14; G01V1/00; G10L25/06; G10L25/18; G10L25/51; H04R3/00
Foreign References:
| JP2008299677A | 2008-12-11 | |||
| JP2012145461A | 2012-08-02 | |||
| JP2002008189A | 2002-01-11 | |||
| JPH0193797A | 1989-04-12 | |||
| JPH08175334A | 1996-07-09 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)
Yoshiki Hasegawa (JP)
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