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61.发明申请公开(公告)号：US20150036768A1
公开(公告)日：2015-02-05
申请号：US14200867
申请日：2014-03-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Ui Kun KWON , Chang Soon PARK , Chi Sung BAE , Joon Seong KANG , Sang Joon KIM , Seung Keun YOON , Chang Mok CHOI
IPC: H04B1/12
Abstract: Provided is a method and apparatus to adaptively set a threshold for signal demodulation. The apparatus and the method include adaptively setting a threshold to demodulate a currently received symbol based on the demodulation value of a previously received symbol based on a comparison value. The comparison value is obtained by comparing a number of previously received symbols having a demodulation value of “0” and a number of currently received symbols having a demodulation value of “1”.
Abstract translation: 提供了一种自适应地设置用于信号解调的阈值的方法和装置。 所述装置和方法包括：基于比较值，自适应地设定阈值以基于先前接收到的符号的解调值来解调当前接收到的符号。 通过比较先前接收到的具有解调值“0”的符号与解调值为“1”的当前接收的符号的数目，获得比较值。
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公开(公告)号：US20130208781A1
公开(公告)日：2013-08-15
申请号：US13849637
申请日：2013-03-25
Inventor： Dong Sik KIM , Ui Kun KWON , Gi Hong IM , Chang Yong SHIN
IPC: H04L27/01
CPC classification number: H04L27/01 , H04L25/03159 , H04L25/03171 , H04L2025/03414 , H04L2025/03796
Abstract: A transmitter and/or receiver for performing frequency domain equalization is provided. A transmitter includes a pilot position determination unit for determining positions for inserting pilots in a frequency domain based on frequency spectrums of data, and a pilot insertion unit for inserting the pilots between the frequency spectrums of the data according to the determined positions for inserting the pilots.
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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：US20230255503A1
公开(公告)日：2023-08-17
申请号：US18136714
申请日：2023-04-19
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dae Geun JANG , Ui Kun KWON , Chang Soon PARK
CPC classification number: A61B5/02125 , A61B5/02416 , A61B5/02007 , A61B5/02116 , 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.
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公开(公告)号：US20230190117A1
公开(公告)日：2023-06-22
申请号：US17839688
申请日：2022-06-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chang Soon PARK , Ui Kun KWON , Young Soo KIM , Dae Geun JANG
CPC classification number: A61B5/02116 , A61B5/0261 , A61B5/681 , A61B5/02125
Abstract: An apparatus for estimating blood pressure may include a sensor configured to measure a bio-signal from an object; and a processor configured to: obtain a cardiac output (CO) feature based on the bio-signal; obtain a total peripheral resistance (TPR) feature by combining an amplitude of a propagation wave component and amplitudes of at least two reflection wave components of the bio-signal, in response to a variation of the CO feature at a blood pressure measurement time relative to a calibration time, being within a predetermined range; obtain the TPR feature by combining the amplitude of the propagation wave component and an amplitude of one reflection wave component of the at least two reflection wave components, in response to the variation of the CO feature not being within the predetermined range; and estimate blood pressure based on the CO feature and the TPR feature.
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Patent Agency Ranking
公开(公告)号：US20230065255A1
公开(公告)日：2023-03-02
申请号：US17984880
申请日：2022-11-10
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chang Soon PARK , Ui Kun KWON , Seung Keun YOON , Dae Geun JANG
IPC: G01D18/00
Abstract: An apparatus for calibration of a bio-information estimation model includes a sensor configured to obtain a bio-signal from an object in a reference interval; a feature extractor, implemented by at least one processor, configure to extract a reference feature value from the bio-signal; and a calibrator, implemented by the at least one processor, configured to determine whether a condition is satisfied based on at least one of the reference feature value and an offset value, and based on determining that the condition is satisfied, configured to calibrate the bio-information estimation model based on the reference feature value and the offset value.
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公开(公告)号：US20230000444A1
公开(公告)日：2023-01-05
申请号：US17940678
申请日：2022-09-08
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dae Geun JANG , Ui Kun KWON , Seung Keun YOON
IPC: A61B5/00 , G16H40/63 , A61B5/0205
Abstract: A bio-signal quality assessment apparatus may include: a bio-signal obtainer configured to obtain a bio-signal; and a processor configured to extract periodic signals from the obtained bio-signal, and determine a signal quality index based on at least one of similarity between the extracted periodic signals and signal variability of the obtained bio-signal.
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68.发明申请公开(公告)号：US20220061770A1
公开(公告)日：2022-03-03
申请号：US17366931
申请日：2021-07-02
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Seung Keun YOON , Ui Kun KWON , Dae Geun JANG
IPC: A61B5/00 , A61B5/0205 , A61B5/024 , A61B5/11 , A61B5/0535 , A61B5/318 , A61B5/389
Abstract: A method for predicting failure of bio-information estimation is provided. The method for predicting failure of bio-information estimation includes: receiving a bio-signal; obtaining failure prediction indicators from the bio-signal that is received until a current time, the failure prediction indicators comprising at least one of a current number of pulses of the bio-signal until the current time, a current signal quality of the bio-signal until the current time, a maximum number of pulses of the bio-signal that are predicted to be measured until a time limit, and a maximum signal quality of the bio-signal that is predicted to be measured until the time limit; and predicting whether bio-information estimation will fail based on the failure prediction indicators before the time limit is elapsed.
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公开(公告)号：US20210378602A1
公开(公告)日：2021-12-09
申请号：US17410651
申请日：2021-08-24
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Ui Kun KWON , Yunseo KU , Seung Woo NOH , Chang Soon PARK , Seung Keun YOON , Dae Geun JANG
IPC: A61B5/00 , A61B5/029 , A61B5/021 , A61B5/0205
Abstract: A blood pressure estimating apparatus includes a sensor configured to obtain a bio-signal of an object; and a processor configured to extract a first cardiovascular feature and a second cardiovascular feature based on the bio-signal, and estimate blood pressure based on a first changing tendency of the first cardiovascular feature from a first reference level and a second changing tendency of the second cardiovascular feature from a second reference level, the first changing tendency and the second changing tendency being independent from each other.
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公开(公告)号：US20210007615A1
公开(公告)日：2021-01-14
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
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.
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