Speed-monitoring radar-activated brake light
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United States of America Patent
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-
Aug 10, 2010
Grant Date -
Jul 19, 2007
app pub date -
Mar 22, 2007
filing date -
Jun 24, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The operator of a third vehicle trailing a second, host vehicle is alerted of a potentially hazardous deceleration of a first vehicle forward of the host vehicle. The road-speed of the first vehicle is ascertained by the host vehicle. Any significant deceleration of the road-speed of the first vehicle is determined. A luminous signal is provided to the third vehicle by the host vehicle when such significant deceleration has occurred. According to some methods a radar device carried by the host vehicle may be used to determine the relative speed between the first and second vehicles.
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