Sleep evaluation device and sleep evaluation method therefor
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United States of America Patent
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Jan 7, 2014
Grant Date -
Jul 2, 2009
app pub date -
Dec 9, 2008
filing date -
Dec 28, 2007
priority date (Note) -
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Abstract
A sleep evaluation device (1) has a sensor unit (2) that constantly detects body movements of a human subject on bedding, and has a determiner that, based on results of detection, determines a sleep state and an aroused state of the human subject. The determiner quantifies results of detection of the sensor unit into N number of body movement data (where, N is a positive integral number satisfying N≧2) and obtains, based on G number of standard deviations for each of G groups (in which G is an integral number satisfying 2≦G
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