Title:
ELECTRONIC DEVICE, METHOD FOR CONTROLLING ELECTRONIC DEVICE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2024/058225
Kind Code:
A1
Abstract:
This electronic device comprises: a transmitting unit for transmitting a transmitted wave; a receiving unit for receiving a reflected wave from a target of the transmitted wave; and a signal processing unit for detecting a distance position, direction, and speed of the target on the basis of a converted signal obtained after a beat signal of the transmitted wave and the reflected wave has been subjected to a Fourier transform. The signal processing unit is provided with an extracting unit for extracting heartbeat information of the target on the basis of the detected distance, direction and speed of the target. The extracting unit: uses a plurality of window functions to extract, from the converted signal, signal components corresponding to vibrations that accompany a heartbeat of the target; applies a learning classifier to the extracted signal components to select a most appropriate heart sound signal as a heart sound; performs envelope processing with respect to the most appropriate heart sound signal to select a most appropriate optimal signal as the heartbeat; acquires values indicating intervals between peak times from the optimal signal; and extracts a heartbeat interval of the target on the basis of a variance and a central value of the values indicating the intervals.
Inventors:
KURODA JUN (JP)
MURAKAMI YOUHEI (JP)
SAHARA TOORU (JP)
HOMMA TAKUYA (JP)
KASHIMA YUU (JP)
TAKAMATSU TETSUYA (JP)
MURAKAMI YOUHEI (JP)
SAHARA TOORU (JP)
HOMMA TAKUYA (JP)
KASHIMA YUU (JP)
TAKAMATSU TETSUYA (JP)
Application Number:
PCT/JP2023/033444
Publication Date:
March 21, 2024
Filing Date:
September 13, 2023
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
G01S13/34; A61B5/0245; A61B5/11; G01S13/88
Foreign References:
| JP2021001735A | 2021-01-07 | |||
| CN113261925A | 2021-08-17 | |||
| CN112401856A | 2021-02-26 | |||
| JP2017127398A | 2017-07-27 | |||
| JP2021176426A | 2021-11-11 | |||
| US20180279884A1 | 2018-10-04 | |||
| US20190328243A1 | 2019-10-31 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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