US 11,911,189 B2
Biosignal processing method and apparatus
Changmok Choi, Yongin-si (KR); Seungkeun Yoon, Seoul (KR); Ui Kun Kwon, Hwaseong-si (KR); and Sang-Joon Kim, Hwaseong-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on May 22, 2019, as Appl. No. 16/419,297.
Application 16/419,297 is a division of application No. 15/271,255, filed on Sep. 21, 2016, granted, now 10,335,093.
Claims priority of application No. 10-2016-0016901 (KR), filed on Feb. 15, 2016.
Prior Publication US 2019/0269373 A1, Sep. 5, 2019
Int. Cl. A61B 5/02 (2006.01); A61B 5/00 (2006.01); A61B 5/021 (2006.01); A61B 5/024 (2006.01); A61B 5/349 (2021.01)
CPC A61B 5/7282 (2013.01) [A61B 5/02108 (2013.01); A61B 5/02416 (2013.01); A61B 5/7235 (2013.01); A61B 5/02438 (2013.01); A61B 5/349 (2021.01); A61B 5/681 (2013.01); A61B 5/7225 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A biosignal processing apparatus comprising:
at least one processor configured to:
extract reference points from a waveform of a biosignal, the reference points comprising a first reference point having a highest signal value from among neighboring first candidate reference points and a second reference point having a lowest signal value from among neighboring second candidate reference points;
determine pulse sharpness levels corresponding to each of the first reference point and the second reference point;
determine feature points of the biosignal based on the pulse sharpness levels; and
transfer, to a bioinformation estimating apparatus, the feature points such that bioinformation of a user is estimated based on the feature points,
wherein one or more of the pulse sharpness levels corresponds to an angle formed between a first line connecting the first reference point to a first candidate reference point from among the neighboring first candidate reference points and a second line connecting the first reference point to another first candidate reference point from among the neighboring first candidate reference points.