Title:
生体検出装置、生体検出方法、及び、プログラム
Document Type and Number:
Japanese Patent JP7286229
Kind Code:
B2
Abstract:
An object is to accurately determine the presence or absence of a living body. A living body detection device comprises: a signal acquirer that acquires a first signal including a first frequency component that is a frequency component of heartbeat and a second frequency component that is a frequency component of breathing; a filter that attenuates a frequency component higher than the first frequency component based on the first signal to generate a second signal; a frequency analyzer that analyzes a frequency component of the second signal; a variance value calculator that calculates a first variance value of energy of at least one of the first frequency component and the second frequency component based on a result of analysis by the frequency analyzer; a first statistical quantity calculator that calculates a first statistical quantity of the first variance value for a predetermined period; and a determiner that determines presence or absence of a living body based on the first statistical quantity.
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Inventors:
Tomoaki Otsuki
Leaf vassal
Leaf vassal
Application Number:
JP2022508282A
Publication Date:
June 05, 2023
Filing Date:
March 11, 2021
Export Citation:
Assignee:
Data Solutions Co., Ltd.
International Classes:
A61B5/00; A61B5/0245; A61B5/11; A61B5/113; G01S13/56
Domestic Patent References:
| JP201997982A | ||||
| JP201988455A | ||||
| JP2005237568A |
Foreign References:
| US20170109481 | ||||
| WO2018216363A1 | ||||
| WO2017149923A1 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito