Personal monitoring and alerting device for drowsiness
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United States of America Patent
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Jun 29, 1999
Grant Date -
N/A
app pub date -
Jul 10, 1997
filing date -
Jul 15, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wrist worn device and method for monitoring and alerting the user of increased drowsiness. The device includes sensors for monitoring several physiological parameters of the user, including peripheral pulse rate variability, peripheral vasomotor response, muscle tone, peripheral blood flow and reaction time variability. If the majority of these parameters are indicative of increased drowsiness, and audio-visual alert is provided the user. The sensors are encased in a shock-absorbing unit and wirelessly transmit the sensed data.
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