Sleep stage determination apparatus

Details Sleep stage determination apparatus Sleep stage determination apparatus

2006-03-31

2008-09-23

Marmor, II, Charles A. (Department: 3735)

Surgery

Diagnostic testing

Respiratory

C600S529000, C600S595000

Reexamination Certificate

active

07427270

ABSTRACT:
Disclosed is a sleep stage determination apparatus which comprises respiratory-signal detection means for detecting a variation of a respiratory signal from the body of a human subject, and sleep-stage determination means for determining a plurality of sleep stages using only the respiratory-signal variation. The sleep stage determination apparatus of the present invention can eliminate the need for detecting a plurality of biological signals and have simplified sensor and circuit configurations designed to detect only the respiratory signal variation which is relatively easily detectable. This makes it possible to reduce a detection error and achieve enhanced determination accuracy or creditability.

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