Title:
心拍検出システム、心拍検出方法
Document Type and Number:
Japanese Patent JP7064893
Kind Code:
B2
Abstract:
To improve precision of heartbeat detection.SOLUTION: This heartbeat detection system comprises: a Doppler sensor which receives a reflection wave from a subject and acquires an I signal and a Q signal of a time region; and a sparse spectrum reconstitution unit which converts the I signal and the Q signal of the time region to an I signal and a Q signal of a frequency region. The sparse spectrum reconstitution unit reconstitutes the sparse spectrum of heartbeats by using an algorithm belonging to a stochastic gradient descent method.SELECTED DRAWING: Figure 4
Inventors:
Tomoaki Otsuki
Leaf vassal
Leaf vassal
Application Number:
JP2018014373A
Publication Date:
May 11, 2022
Filing Date:
January 31, 2018
Export Citation:
Assignee:
Data Solutions Co., Ltd.
International Classes:
A61B5/11; A61B5/0245
Domestic Patent References:
| JP2005160640A | ||||
| JP2017519548A | ||||
| JP2010142456A | ||||
| JP200655504A | ||||
| JP2017225560A |
Foreign References:
| EP3182413A1 | ||||
| WO2017140663A1 | ||||
| US20100245091 | ||||
| WO2018003139A1 |
Other References:
茂木 瑛梨子 他,スペクトログラムを用いたドップラーレーダによる心拍検出,電子情報通信学会技術研究報告,2017年01月,Vol.116, No.407,pp.25-30
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito