AWAKING DEGREE JUDGMENT DEVICE, METHOD FOR JUDGING DEGREE OF AWAKING AND AWAKING DEGREE JUDGMENT PROGRAM

WIPO Patent Application WO/2010/140241

A1

An awaking degree judgment device calculates a heart beat interval from a heart beat signal of an examinee and carries out a frequency analysis for the calculated heart beat interval to calculate a spectrum density for every frequency.  Further, the awaking degree judgment device extracts at every predetermined timing a combination among the maximum point density that is a spectrum density at the maximum point out of the calculated spectrum densities, the maximum point frequency that is the frequency corresponding to the maximum point density, and a large or small differential relationship indicative of a difference between the spectrum density corresponding to a frequency existing before or after the maximum point frequency.  After that, the awaking degree judgment device compares the maximum point frequency, the maximum point density, and the small or large differential relationship that are contained in the extracted combination with the maximum point frequency, the maximum point density, and the small or large differential relationship that are contained in the combination extracted before the timing of the former combination set forth above, respectively.  The awaking degree judgment device judges the degree of awaking in accordance with the judgment standard determined from a result of the comparison.

MASUDA YUTA (JP)

PCT/JP2009/060281

December 09, 2010

June 04, 2009

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FUJITSU LTD (JP)
MASUDA YUTA (JP)

A61B5/16; A61B5/0245

WO2008065724A1	2008-06-05
WO2008069337A1	2008-06-12
WO2009020074A1	2009-02-12

JP2008140156A	2008-06-19
JP2006158733A	2006-06-22

SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)

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