Apparatus and method for measuring vehicle speed and/or acceleration
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jun 15, 2004
Grant Date -
Jul 3, 2003
app pub date -
May 2, 2001
filing date -
Dec 29, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and method for measuring the speed and/or acceleration of a vehicle traveling on a vehicle path includes sender/detector units on one side of the vehicle path and corresponding retro-reflector matrix units on the other side of the vehicle path. A controller calculates speed and/or acceleration of the vehicle in response to interruption of the beam by a passing vehicle.
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