公开(公告)号：US11660053B2

公开(公告)日：2023-05-30

申请号：US16258878

申请日：2019-01-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung Keun Yoon ,  Ui Kun Kwon ,  Dae Geun Jang

IPC: A61B5/00 ,  A61B5/0205 ,  G16H50/20 ,  A61B5/024

CPC classification number: A61B5/7282 ,  A61B5/0006 ,  A61B5/0205 ,  A61B5/681 ,  A61B5/7207 ,  A61B5/7235 ,  A61B5/0015 ,  A61B5/02416 ,  G16H50/20

Abstract: An apparatus and a method for monitoring a bio-signal measuring condition are disclosed. The apparatus includes a bio-signal receiver configured to receive a bio-signal that is measured from a user, and a processor configured to extract any one or any combination of a waveform feature, a period feature, and an amplitude feature, from the received bio-signal, determine whether the extracted any one or any combination of the waveform feature, the period feature, and the amplitude feature are normal, using at least one predetermined determination reference corresponding to the extracted any one or any combination of the waveform feature, the period feature, and the amplitude features, and monitor a measuring condition of the received bio-signal, based on whether the extracted any one or any combination of the waveform feature, the period feature, and the amplitude feature are determined to be normal.

公开(公告)号：US11660009B2

公开(公告)日：2023-05-30

申请号：US16811038

申请日：2020-03-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dae Geun Jang ,  Ui Kun Kwon ,  Chang Soon Park

IPC: A61B5/021 ,  A61B5/024 ,  A61B5/02 ,  A61B5/00

CPC classification number: A61B5/02125 ,  A61B5/02007 ,  A61B5/02116 ,  A61B5/02416 ,  A61B5/7207 ,  A61B2560/0223

Abstract: Provided is an apparatus for non-invasively estimating bio-information by analyzing a pulse waveform. The apparatus for estimating bio-information according to an aspect of the present disclosure includes a processor configured to obtain a first characteristic point from a first pulse wave signal measured by a pulse wave sensor at a calibration time, obtain a second characteristic point from a second pulse wave signal measured by the pulse wave sensor at a bio-information estimation time, based on time information of the obtained first characteristic point, and estimate the bio-information of an object based on the obtained second characteristic point.

公开(公告)号：US20230119697A1

公开(公告)日：2023-04-20

申请号：US17670684

申请日：2022-02-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ui Kun KWON ,  Dae Geun Jang ,  Chang Soon Park ,  Young Soo Kim

IPC: A61B5/00 ,  A61B5/021 ,  A61B5/024

Abstract: A method of evaluating quality of a bio-signal includes receiving an input bio-signal; setting a quality evaluation region in thebio-signal; dividing a signal of the quality evaluation region into a plurality of sub-signals; extracting a representative waveform by using the plurality of sub-signals; evaluating a quality of each sub-signal based on the representative waveform; and evaluating a quality of the signal in the quality evaluation region based on quality evaluation results of the plurality of sub-signals.

公开(公告)号：US11540779B2

公开(公告)日：2023-01-03

申请号：US16044013

申请日：2018-07-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung Woo Noh ,  Yunseo Ku ,  Ui Kun Kwon ,  Youn Ho Kim ,  Chang Soon Park ,  Seung Keun Yoon ,  Dae Geun Jang

IPC: A61B5/00 ,  A61B5/021 ,  A61B5/029 ,  A61B5/024 ,  A61B5/02

Abstract: A bio-information measuring apparatus bio-information measuring method are provided. The bio-information measuring apparatus includes: a pulse wave obtainer configured to obtain a pulse wave signal, and a processor configured to correct a feature of the obtained pulse wave signal based on a variation in an amplitude of the obtained pulse wave signal, and to measure bio-information based on the corrected feature.

公开(公告)号：US20210235996A1

公开(公告)日：2021-08-05

申请号：US16904732

申请日：2020-06-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chang Mok Choi ,  Dae Geun Jang

IPC: A61B5/0205 ,  A61B5/00 ,  A61B5/02 ,  A61B5/16

Abstract: A signal processing apparatus includes a memory configured to store instructions; and a processor configured to execute the instructions to obtain a signal; obtain a frequency band spectrum by applying a Fast Fourier Transform (FFT) to the obtained signal; and remove noise from the obtained spectrum by applying a first filter and a second filter, which are different from each other, to the obtained frequency band spectrum.

公开(公告)号：US20210085259A1

公开(公告)日：2021-03-25

申请号：US16843104

申请日：2020-04-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ui Kun Kwon ,  Chang Soon Park ,  Seung Keun Yoon ,  Dae Geun Jang

IPC: A61B5/00 ,  A61B5/021 ,  A61B5/024 ,  A61B5/02 ,  A61B5/16

Abstract: Provided is an apparatus for estimating bio-information. The apparatus for estimating bio-information according to an embodiment includes a processor configured to obtain a pulse wave signal from a user; extract components of a plurality of element waveforms which constitute a waveform of the pulse wave signal; and obtain a cardiovascular feature based on the extracted components of the plurality of element waveforms. The processor is configured to extract a component of at least one element waveform based on a component of an adjacent element waveform.

公开(公告)号：US20190274552A1

公开(公告)日：2019-09-12

申请号：US16298527

申请日：2019-03-11

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  UNIVERSITY OF MARYLAND, COLLEGE PARK

Inventor： Dae Geun Jang ,  Youn Ho Kim ,  Peyman Yousefian ,  Jin-Oh Hann ,  Sungtae Shin ,  Azin Sadat Mousavi

IPC: A61B5/021 ,  A61B5/11 ,  A61B5/00

Abstract: An apparatus for measuring blood pressure according to one aspect may include a limb ballistocardiogram (BCG) sensor configured to attach to a limb of a user and measure a limb BCG signal of the user, and a processor configured to extract blood pressure-related features from the measured limb BCG signal and estimate blood pressure of the user based on at least part of the extracted blood pressure-related features.

公开(公告)号：US20180177465A1

公开(公告)日：2018-06-28

申请号：US15833727

申请日：2017-12-06

Applicant: Samsung Electronics Co., LTD.

Inventor： Ui Kun Kwon ,  Chang Soon Park ,  Dae Geun Jang ,  Young Soo Kim

IPC: A61B5/00 ,  A61B5/0402 ,  A61B5/0488 ,  A61B5/11 ,  A61B5/04 ,  A61B5/0205

CPC classification number: A61B5/7278 ,  A61B5/0205 ,  A61B5/021 ,  A61B5/04012 ,  A61B5/0402 ,  A61B5/0488 ,  A61B5/0816 ,  A61B5/1102 ,  A61B2560/0223

Abstract: A bio-signal feature scaling apparatus may include: a processor configured to execute instructions to: extract a feature from a bio-signal of an object; estimate a cause of change in a bio-state of the object; calibrate a scale factor based on the estimated cause of change in the bio-state; and scale the extracted feature by applying the calibrated scale factor to the extracted feature.

公开(公告)号：US12290345B2

公开(公告)日：2025-05-06

申请号：US18328257

申请日：2023-06-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ui Kun Kwon ,  Chang Soon Park ,  Dae Geun Jang

IPC: A61B5/021 ,  A61B5/00

Abstract: An apparatus for non-invasively estimating blood pressure is provided. The apparatus for estimating blood pressure may include a bio-signal measurer configured to measure a bio-signal from a user and a processor configured to estimate blood pressure using the measured bio-signal. The processor may extract a first feature and a second feature from the bio-signal at an extraction time, estimate changes in the first feature and the second feature which have occurred during a time period from a calibration time at which the first feature and the second feature are calibrated to the extraction time at which the first feature and the second feature are extracted, and estimate a blood pressure based on the changes in the first feature and the second feature.

公开(公告)号：US12274535B2

公开(公告)日：2025-04-15

申请号：US17839722

申请日：2022-06-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chang Soon Park ,  Ui Kun Kwon ,  Young Soo Kim ,  Dae Geun Jang

IPC: A61B5/021 ,  A61B5/00 ,  A61B5/024

Abstract: An apparatus for estimating blood pressure may include: a memory storing one or more instructions; and a processor configured to execute the one or more instructions to: extract a cardiac output (CO) feature, a first candidate total peripheral resistance (TPR) feature, and a second candidate TPR feature from a bio-signal; determine one of the first candidate TPR feature and the second candidate TPR feature as a TPR feature based on a direction of change in the CO feature and a direction of change in the first candidate TPR feature between a blood pressure measurement time and a calibration time; and estimate the blood pressure based on the TPR feature and the CO feature.