Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Clinton T. Stewart0
Mark A. Abourizk0
Paul A. Green0
Date of Patent
June 5, 2007
0Patent Application Number
104421520
Date Filed
May 21, 2003
0Patent Primary Examiner
Patent abstract
A method and apparatus are provided for authenticating a measure of sleepiness in a person in which a measure of the person's sleepiness and an authentication step are performed substantially simultaneously on substantially the same physical attribute of the person. In one form, an eye of a person is scanned under infrared light and a unique identifying code is calculated from the iris as an authentication step. In one form, a measure of the person's sleepiness is determined from changes in the pupil size with time.
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