Title:
VEHICLE ALARM DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/075008
Kind Code:
A1
Abstract:
Provided is a vehicle alarm device (200) having a novel configuration. This vehicle alarm device (200) has a sound source detection device (110), wherein the sound source detection device (110) includes a plurality of microphones (116) and a delay circuit (117). A transistor (OS transistor) that includes an oxide semiconductor is used as a transistor constituting a signal retaining circuit (22) in the delay circuit (117). An externally derived sound is acquired by the sound source detection device (110), and a sound source position of the externally derived sound is specified. When it is assessed, from, inter alia, the relative speed between the vehicle and the sound source for which the position was specified, that there is a high risk that the vehicle could collide with the sound source, an audio signal for evoking caution in a passenger is outputted.
Inventors:
YAMAZAKI SHUNPEI (JP)
IKEDA TAKAYUKI (JP)
KIMURA KIYOTAKA (JP)
TAMATSUKURI YUKI (JP)
IKEDA TAKAYUKI (JP)
KIMURA KIYOTAKA (JP)
TAMATSUKURI YUKI (JP)
Application Number:
PCT/IB2019/058362
Publication Date:
April 16, 2020
Filing Date:
October 02, 2019
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
International Classes:
G08G1/16; B60R11/02; B60R16/02; G01S3/808; H01L21/8234; H01L21/8242; H01L27/06; H01L27/088; H01L27/108; H01L29/786; H04R3/00
Foreign References:
| JPH0585288A | 1993-04-06 | |||
| JP2017107141A | 2017-06-15 | |||
| JP2013235564A | 2013-11-21 | |||
| JPH08254995A | 1996-10-01 | |||
| JP2018146948A | 2018-09-20 | |||
| JP2016105590A | 2016-06-09 | |||
| JP2012256409A | 2012-12-27 |
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