发明授权
- 专利标题: Vehicle presence notification apparatus
- 专利标题(中): 车辆存在通知装置
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申请号: US13551729申请日: 2012-07-18
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公开(公告)号: US08823501B2公开(公告)日: 2014-09-02
- 发明人: Koichi Goto
- 申请人: Koichi Goto
- 申请人地址: JP Kariya
- 专利权人: Denso Corporation
- 当前专利权人: Denso Corporation
- 当前专利权人地址: JP Kariya
- 代理机构: Nixon & Vanderhye P.C.
- 优先权: JP2011-169200 20110802
- 主分类号: B60Q1/00
- IPC分类号: B60Q1/00 ; B60Q5/00
摘要:
An ultrasonic generation element provides a primary resonance portion existing in an ultrasonic frequency band, and is caused to perform only a notice sound generation by parametric speaker. An audible-sound generation piezoelectric speaker provides a primary resonance portion existing in an audible frequency band, and is caused to switch between a notice sound generation by dynamic speaker and a notice sound generation by parametric speaker, based on vehicular information. Under a predetermined low vehicle speed, a notice sound is generated in both (i) an area ahead of a vehicle and distant from the vehicle, and (ii) an area surrounding the vehicle. When the vehicle speed increases, a notice sound is generated at a position ahead of the vehicle and more distant from the vehicle.
公开/授权文献
- US20130033367A1 VEHICLE PRESENCE NOTIFICATION APPARATUS 公开/授权日:2013-02-07