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Consumer Sleep Technology
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Patent US10172530
Issued 2019-01-08
Biological Information Processing System And Method Of Controlling Biological Information Processing System
A biological information processing system includes a pulse wave information acquisition unit which acquires pulse wave information of a user, and a processing unit which determines the sleep state of the user based on the pulse wave information. The processing unit obtains index information relating to an arousal state during sleep based on the pulse wave information.
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- 1. A biological information processing system comprising:
a pulse wave sensor; a processing unit which determines the sleep state of the user based on the pulse wave information, and a presentation unit which presents the index information to the user; wherein the processing unit obtains index information relating to a brain wave state during sleep based on the pulse wave information, and wherein the processing unit:
performs a smoothing process of the pulse wave information in a first period during which it is determined that the user is in the sleep state;
obtains an amount of change of a peak of the pulse wave information before the smoothing process with respect to the value of the peak of the pulse wave information after the smoothing process;
when the obtained amount of change of the peak exceeds a pulse wave change amount threshold value, obtains a time representing the width of the peak of the pulse wave information; and
when the obtained time is within a given second period, determines that the arousal state is generated and obtains the index information based on the determination result.
