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: US13425662申请日: 2012-03-21
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公开(公告)号: US09013284B2公开(公告)日: 2015-04-21
- 发明人: Toshiaki Nakayama , Junichi Ishikawa
- 申请人: Toshiaki Nakayama , Junichi Ishikawa
- 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 PC
- 优先权: JP2011-62915 20110322
- 主分类号: B60Q1/00
- IPC分类号: B60Q1/00 ; B60Q5/00 ; G10K15/02
摘要:
A vehicle presence notification apparatus may include a dynamic speaker for radiating a notification sound from a vehicle in an audible frequency, and a sound pressure supplement unit is provided to control a sound pressure of the notification sound. The apparatus may further include a parametric speaker for generating a supersonic sound of the notification sound from a supersonic sound generation unit. The supersonic sound is emitted from a sound emission opening. The parametric speaker may further include a reflected sound pressure detecting unit for detecting a sound pressure generated by a reflection of the supersonic sound from the sound emission opening. The sound pressure supplement unit increases the sound pressure of the notification sound radiated by the dynamic speaker based on the sound pressure detected by the reflected sound pressure detecting unit.
公开/授权文献
- US20120242468A1 VEHICLE PRESENCE NOTIFICATION APPARATUS 公开/授权日:2012-09-27
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