VEHICLE APPROACH NOTIFICATION UNIT
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jan 16, 2014
app pub date -
May 21, 2013
filing date -
Jul 11, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A vehicle approach notification unit is disposed in a vehicle for producing a notification sound. The vehicle approach notification unit has a speaker and a thin film. The speaker is disposed to a sound tube of a vehicle horn of the vehicle. The vehicle horn produces a resonant warning sound with a resonant frequency. The thin film partitions a space between the speaker and the sound tube. The speaker emits the notification sound into the sound tube so that the notification sound is emitted outside of the vehicle via the sound tube. The thin film restricts a sound wave having the resonant frequency from being transmitted, and allows a sound wave having a frequency producing the notification sound to be transmitted.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully