04297685 is referenced by 126 patents and cites 5 patents.

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.

Title
Apparatus and method for sleep detection
Application Number
6/44268
Publication Number
4297685
Application Date
May 31, 1979
Publication Date
October 27, 1981
Inventor
Edward C Brainard II
Marion
MA, US
Assignee
Environmental Devices Corporation
MA, US
IPC
G08B 21/00
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