Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2011-03-01
2011-03-01
Pham, Toan N (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S573100
Reexamination Certificate
active
07898426
ABSTRACT:
Example apparatus and methods for estimating a living being's alertness include modeling the sleep-wake cycle using a function generator circuit to model the circadian component, and one or more analog circuits to model the homeostatic and inertial components. In some embodiments of the present invention, temporal scaling is used for more rapid modeling, for example using time periods of seconds or less to represent an hour of the sleep-wake cycle.
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PDF downloaded from website entitled: http://www.theactigraph.com/index.php?option=com—docman&task=doc—details&Itemid=89&gid=2-2 (created on Jul. 22, 2008).
Acherman, P. et al., Simulation of daytime vigilance by the additive interaction of a homeostatic and circadian process,Biological Cybernetics, 71:115-121, 1994.
Kalik Steven F.
Namburu Setu Madhavi
Rai Deepti
Gifford Krass Sprinkle Anderson & Citkowski P.C.
Pham Toan N
Toyota Motor Engineering & Manufacturing North America, Inc
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