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公开(公告)号：US12290344B2
公开(公告)日：2025-05-06
申请号：US18129396
申请日：2023-03-31
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chang Soon Park , Ui Kun Kwon , Young Soo Kim , Hye Rim Lim
Abstract: An apparatus for estimating blood pressure may include: a photoplethysmogram (PPG) sensor configured to measure a PPG signal from a user; and a processor configured to: extract a cardiovascular feature from the PPG signal; calculate a first variation in the extracted cardiovascular feature compared to a reference cardiovascular feature measured at a reference time; determine a measurement posture of the PPG signal based on a time interval between two waveform components of the PPG signal; in response to the measurement posture corresponding to the reference posture, estimate the blood pressure based on the first variation; and in response to the measurement posture not corresponding to the reference posture, obtain a second variation by correcting the first variation; and estimate blood pressure based on the second variation.
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公开(公告)号：US20240188834A1
公开(公告)日：2024-06-13
申请号：US18144645
申请日：2023-05-08
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Ui Kun KWON , Young Soo Kim , Chang Soon Park , Hye Rim Lim
IPC: A61B5/0205 , A61B5/029 , A61B5/11
CPC classification number: A61B5/0205 , A61B5/029 , A61B5/1116 , A61B5/02108
Abstract: Provided is an apparatus for estimating blood pressure, including a pulse wave sensor configured to measure a pulse wave signal of a user, and a processor configured to obtain, based on the pulse wave signal, one or more feature values corresponding to the blood pressure, detect whether a change in a posture of a user from a first posture to a second posture occurs while measuring the pulse wave signal, based on the change in the posture being detected, correct a reference blood pressure based on a blood pressure variation caused by the change in the posture, correct the one or more feature values based on a variation in one or more pulse wave signal feature values caused by the change in the posture, and estimate the blood pressure based on the corrected reference blood pressure and the corrected one or more feature values.
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公开(公告)号：US12114963B2
公开(公告)日：2024-10-15
申请号：US17136150
申请日：2020-12-29
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sang Yun Park , Hye Rim Lim , Jin Woo Choi , Jae Min Kang
IPC: A61B5/0205 , A61B5/00 , A61B5/02 , A61B5/021 , A61B5/16
CPC classification number: A61B5/0205 , A61B5/02007 , A61B5/165 , A61B5/442 , A61B5/6843 , A61B5/742 , A61B5/02108
Abstract: An apparatus for non-invasively measuring bio-information is provided. The apparatus for estimating bio-information may include a pulse wave sensor including a plurality of channels, and configured to measure pulse wave signals at a plurality of points of an object; and a processor configured to generate oscillograms corresponding to the plurality of channels based on the pulse wave signals measured by the plurality of channels; determine a channel, from among the plurality of channels, for estimating the bio-information based on the oscillograms; and estimate the bio-information based on an oscillogram of the channel.
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公开(公告)号：US20240081663A1
公开(公告)日：2024-03-14
申请号：US18118562
申请日：2023-03-07
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chang Soon PARK , Ui Kum Kwon , Young Soo Kim , Hye Rim Lim
CPC classification number: A61B5/02116 , A61B5/02416 , A61B5/7221
Abstract: An apparatus for non-invasively estimating bio-information and a method of determining whether a bio-signal is normal by the apparatus for estimating bio-information are provided. The apparatus for estimating bio-information according to an embodiment of the disclosure includes: a photoplethysmogram (PPG) sensor configured to measure a PPG signal from an object; and a processor configured to extract a plurality of pairs of local maximum points and local minimum points from a second derivative signal of the PPG signal, to select at least one reference pair from among the extracted plurality of pairs, and to determine whether the PPG signal is normal based on the selected at least one reference pair.
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公开(公告)号：US11911134B2
公开(公告)日：2024-02-27
申请号：US17133093
申请日：2020-12-23
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jin Woo Choi , Sang Yun Park , Hye Rim Lim , Jae Min Kang , Seung Woo Noh
IPC: A61B5/0205 , A61B5/00 , A61B5/055 , A61B5/02 , A61B5/16 , A61B8/08 , A61B5/1172 , A61B5/021
CPC classification number: A61B5/0205 , A61B5/004 , A61B5/0082 , A61B5/0095 , A61B5/02007 , A61B5/055 , A61B5/165 , A61B5/442 , A61B5/489 , A61B8/085 , A61B5/02108 , A61B5/1172 , A61B2562/0247
Abstract: An apparatus for non-invasively measuring bio-information is provided. The apparatus for estimating bio-information may include a pulse wave sensor configured to measure a pulse wave signal from an object; a sensor position sensor configured to obtain sensor position information of the pulse wave sensor with respect to the object, based on the object being in contact with the pulse wave sensor; and a processor configured to estimate the bio-information based on blood vessel position information of the object, the sensor position information, and the pulse wave signal.
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Patent Agency Ranking
公开(公告)号：US20220022757A1
公开(公告)日：2022-01-27
申请号：US17133093
申请日：2020-12-23
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jin Woo Choi , Sang Yun Park , Hye Rim Lim , Jae Min Kang , Seung Woo Noh
Abstract: An apparatus for non-invasively measuring bio-information is provided. The apparatus for estimating bio-information may include a pulse wave sensor configured to measure a pulse wave signal from an object; a sensor position sensor configured to obtain sensor position information of the pulse wave sensor with respect to the object, based on the object being in contact with the pulse wave sensor; and a processor configured to estimate the bio-information based on blood vessel position information of the object, the sensor position information, and the pulse wave signal.
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公开(公告)号：US12239425B2
公开(公告)日：2025-03-04
申请号：US17373015
申请日：2021-07-12
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jin Woo Choi , Jae Min Kang , Seung Woo Noh , Sang Yun Park , Hye Rim Lim
Abstract: An apparatus for estimating blood pressure is provided. According to one embodiment, the apparatus for estimating blood pressure may include: a first sensor configured to obtain a pulse wave signal of a green wavelength from an object when the object is in contact with the first sensor; a second sensor configured to measure an external force applied to the second sensor while the first sensor is obtaining the pulse wave signal; and a processor configured to obtain an oscillometric envelope based on a direct current (DC) component of the pulse wave signal of the green wavelength and the external force, and estimate the blood pressure using the oscillometric envelope.
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公开(公告)号：US12023138B2
公开(公告)日：2024-07-02
申请号：US17149204
申请日：2021-01-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sang Yun Park , Chang Mok Choi , Jae Min Kang , Seung Woo Noh , Hye Rim Lim , Jin Woo Choi
CPC classification number: A61B5/02108 , A61B5/02007 , A61B5/02225 , A61B5/02427 , A61B2562/0247
Abstract: An apparatus for estimating bio-information, the apparatus including a pulse wave sensor and a processor. The pulse wave sensor includes a plurality of channels, each channel of the plurality of channels being configured to measure a first pulse wave signal of a first wavelength and a second pulse wave signal of a second wavelength that is different from the first wavelength. The processor is configured to: for each channel of the plurality of channels, generate a first oscillogram based on the first pulse wave signal, generate a second oscillogram based on the second pulse wave signal, and convert a phase delay between the first oscillogram and the second oscillogram into an area. The processor is further configured to determine a channel among the plurality of channels based on the area of each channel, and estimate bio-information based on the determined channel.
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公开(公告)号：US12011251B2
公开(公告)日：2024-06-18
申请号：US17132230
申请日：2020-12-23
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hye Rim Lim , Sang Yun Park , Jin Woo Choi , Jae Min Kang
CPC classification number: A61B5/02116 , A61B5/0033 , A61B5/02007 , A61B5/7475 , A61B90/06 , A61B2090/065
Abstract: An apparatus for estimating bio-information is provided. The apparatus for estimating bio-information may include a pulse wave sensor configured to measure a pulse wave signal from an object; a force sensor configured to measure a first force exerted between the object and the pulse wave sensor; and a processor configured to: convert the first force into a second force, based on structure information of the object; and estimate the bio-information, based on the pulse wave signal and the second force.
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公开(公告)号：US20240172945A1
公开(公告)日：2024-05-30
申请号：US18129396
申请日：2023-03-31
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chang Soon PARK , Ui Kun Kwon , Young Soo Kim , Hye Rim Lim
CPC classification number: A61B5/02116 , A61B5/029 , A61B5/7239 , A61B5/7246 , A61B5/7278 , A61B5/02416
Abstract: An apparatus for estimating blood pressure may include: a photoplethysmogram (PPG) sensor configured to measure a PPG signal from a user; and a processor configured to: extract a cardiovascular feature from the PPG signal; calculate a first variation in the extracted cardiovascular feature compared to a reference cardiovascular feature measured at a reference time; determine a measurement posture of the PPG signal based on a time interval between two waveform components of the PPG signal; in response to the measurement posture corresponding to the reference posture, estimate the blood pressure based on the first variation; and in response to the measurement posture not corresponding to the reference posture, obtain a second variation by correcting the first variation; and estimate blood pressure based on the second variation.
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