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Patent Searching and Data


Title:
VEHICLE PRESENCE NOTIFICATION DEVICE
Document Type and Number:
Japanese Patent JP2014015187
Kind Code:
A
Abstract:

To provide a vehicle presence notification device capable of delivering a notification sound to "a pedestrian before a vehicle", and also deliver a notification sound even to "pedestrians in a circumference of the vehicle, for example, by and behind the vehicle and so on".

A vehicle presence notification device generates "a notification sound using a sound of high frequency" by first notification sound generation means 1 toward before a vehicle. "The sound of high frequency" has high directivity, so its arrival range can be controlled and the notification sound can be delivered positively to "a pedestrian before the vehicle". Further, "a notification sound using a sound of low frequency" is generated by second notification sound generation means 2 toward below the vehicle (namely, toward a road surface". "The sound of low frequency" has low directivity, so the notification sound reflected by the road surface can be delivered to "pedestrians in a circumference of the vehicle, for example, by and behind the vehicle and so on". Namely, the notification sound is delivered positively to "the pedestrian before the vehicle", and the notification sound can be delivered even to "the pedestrians in the circumference of the vehicle, for example, by and behind the vehicle and so on".


Inventors:
NAKAYAMA TOSHIAKI
SUZUKI KOJI
Application Number:
JP2012155989A
Publication Date:
January 30, 2014
Filing Date:
July 11, 2012
Export Citation:
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Assignee:
DENSO CORP
HAMANAKO DENSO CO LTD
International Classes:
G10K11/22; B60Q5/00; G10K11/28; H04R3/00
Attorney, Agent or Firm:
Kenji Ishiguro
Shinji Hase