Apparatus and method for sleep detection
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United States of America Patent
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-
Oct 27, 1981
Grant Date -
N/A
app pub date -
May 31, 1979
filing date -
May 31, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention rests on the discovery that the onset of sleep is preceeded by a drop in brain temperature as measured within the auditory canal. Auditory canal temperature is thus measured and its value used to activate an audible or visible alarm to prevent the subject's falling asleep.
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