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Patent Searching and Data


Title:
LIVING BODY DETECTION DEVICE, LIVING BODY DETECTION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/187308
Kind Code:
A1
Abstract:
The present invention addresses the problem of accurately determining the presence/absence of a living body. This living body detection device includes: a signal acquisition unit for acquiring a first signal comprising a first frequency component that is a frequency component for a heartbeat and a second frequency component that is a frequency component for respiration; a filter unit for attenuating a frequency component higher than the first frequency component on the basis of the first signal to generate a second signal; a frequency analysis unit for analyzing frequency components of the second signal; a variance value calculation unit for calculating a first variance value of energy of at least one frequency component among the first frequency component and the second frequency component, on the basis of an analysis result from the frequency analysis unit; a first statistic calculation unit for calculating a first statistic of the first variance value in a predetermined period; and a determination unit for determining the presence/absence of a living body on the basis of the first statistic.

Inventors:
OHTSUKI TOMOAKI (JP)
YE CHEN (JP)
Application Number:
PCT/JP2021/009768
Publication Date:
September 23, 2021
Filing Date:
March 11, 2021
Export Citation:
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Assignee:
DATA SOLUTIONS INC (JP)
International Classes:
G01S13/56; A61B5/00; A61B5/0245; A61B5/11; A61B5/113
Domestic Patent References:
WO2018216363A12018-11-29
WO2017149923A12017-09-08
Foreign References:
JP2019097982A2019-06-24
US20170109481A12017-04-20
JP2019088455A2019-06-13
JP2005237568A2005-09-08
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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