Title:
METHOD FOR CALIBRATING EXTERNAL LIGHT FOR BIO-SIGNAL MEASUREMENT, AND ELECTRONIC DEVICE AND STORAGE MEDIUM THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/261725
Kind Code:
A1
Abstract:
A wearable electronic device comprises: a bio-signal detection unit including at least one light-receiving part and at least one light-emitting part; an external light calibration circuit; and a processor electrically connected to the bio-signal detection unit and the external light calibration circuit, wherein the processor can be configured to emit light at the skin of a user through the at least one light-emitting part, detect, from among a first period in which the light is emitted through the at least one light-emitting part and a second period in which the light is not emitted, an external light signal outputted through the at least one light-receiving part during the second period, and use the external light calibration circuit to remove the external light signal from a bio-signal corresponding to the light reflected from the skin of the user output through the at least one light-receiving part. Other embodiments are possible.
Inventors:
JUNG HYUNJUN (KR)
LIM DAEHYEONG (KR)
LIM DAEHYEONG (KR)
Application Number:
PCT/KR2021/004704
Publication Date:
December 30, 2021
Filing Date:
April 14, 2021
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
A61B5/00; A61B5/024
Foreign References:
| JP2016131796A | 2016-07-25 | |||
| JPH09299342A | 1997-11-25 | |||
| US10426387B2 | 2019-10-01 | |||
| US20190200917A1 | 2019-07-04 | |||
| KR101978552B1 | 2019-08-29 |
Attorney, Agent or Firm:
LEE, Keon-Joo et al. (KR)
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