VEHICLE APPROACH NOTIFICATION UNIT
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United States of America Patent
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N/A
Issued Date -
Nov 28, 2013
app pub date -
May 21, 2013
filing date -
May 28, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A vehicle approach notification unit produces a notification sound outside a vehicle when a predetermined driving condition is met to notify an approach of the vehicle. The vehicle approach notification unit has a cavity portion and a small speaker. The cavity portion is disposed to a component of the vehicle and has a sound space therein. The small speaker directly produces the notification sound including an audible frequency. The small speaker is disposed at the cavity portion and emits the notification sound into the sound space of the cavity portion. The cavity portion has a diaphragm or a sound outlet that emits the notification sound from the sound space of the cavity portion outside the vehicle.
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