Sleep stage estimating apparatus, biological data estimating apparatus, sleep stage estimating method, and biological data estimating method
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United States of America Patent
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Apr 14, 2020
Grant Date -
Mar 8, 2018
app pub date -
Mar 14, 2016
filing date -
Mar 18, 2015
priority date (Note) -
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Abstract
The estimation of the sleep stage at a time point where data does not exist, is enabled. An acquiring unit configured to acquire biological data indicating a wave of a heartbeat; a parameter estimating unit configured to estimate a parameter by using the biological data, with respect to a mathematical expression defining a medium frequency component of the wave of the heartbeat by using the parameter; and a sleep stage estimating unit configured to estimate a sleep stage from a value of the medium frequency component at any time point, based on the mathematical expression to which the estimated parameter is applied, are included.
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