Driver alarm
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 17, 1996
Grant Date -
N/A
app pub date -
Mar 3, 1995
filing date -
Mar 3, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pressure transducer is attached along the circumference of the steering wheel of a vehicle and measures total hand grip pressure on the wheel. A control unit having a microcontroller monitors the variable pressure signal from the transducer and sounds an alarm when the pressure falls below a lower limit and when the transient behavior of the pressure signal deteriorates substantially. A display unit, attached to the steering wheel and having a number of LED's, gives a visual indication of the driver's drowsiness level.
First Claim
Family
International Classification(s)
Cited Art Landscape
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