Patents by Inventor Chang Soon Park
Chang Soon Park has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240172945Abstract: 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.Type: ApplicationFiled: March 31, 2023Publication date: May 30, 2024Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Soon PARK, Ui Kun Kwon, Young Soo Kim, Hye Rim Lim
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Publication number: 20240160603Abstract: Provided is a data input/output (I/O) method using a storage node-based key-value store in a storage disaggregation environment. The data I/O method using the storage node-based key-value store includes receiving a command converted from a key-value write request of an application from a calculation node according to a communication protocol used in the storage node, converting the command into an I/O request using a key included in the command, the I/O request including a logical block address and a value corresponding to the key, and storing the value in a storage device of the storage node using the logical block address of the I/O request.Type: ApplicationFiled: September 19, 2022Publication date: May 16, 2024Inventors: Sung-Soon PARK, Kyeung Pyo KIM, Young Jae KIM, Yeo Hyeon PARK, Chang Gyu LEE
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Patent number: 11974834Abstract: An apparatus for estimating bio-information may include: a processor configured to measure a current time interval between a plurality of element waveforms of the pulse wave signal, determine whether a current measurement posture of the user corresponds to a reference posture based on the current time interval of the plurality of element waveforms, and estimate the bio-information based on a determination of whether the current measurement posture corresponds to the reference posture.Type: GrantFiled: May 28, 2020Date of Patent: May 7, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ui Kun Kwon, Chang Soon Park, Seung Keun Yoon, Dae Geun Jang
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Patent number: 11961564Abstract: To program in a nonvolatile memory device including a cell region including first metal pads and a peripheral region including second metal pads and vertically connected to the cell region by the first metal pads and the second metal pads, a memory block is provided with a plurality of sub blocks disposed in a vertical direction where the memory block includes a plurality of cell strings each including a plurality of memory cells connected in series and disposed in the vertical direction. A plurality of intermediate switching transistors are disposed in a boundary portion between two adjacent sub blocks in the vertical direction. Each of the plurality of intermediate switching transistors is selectively activated based on a program address during a program operation. The selectively activating each of the plurality of intermediate switching transistors includes selectively turning on one or more intermediate switching transistors in a selected cell string based on the program address.Type: GrantFiled: October 18, 2021Date of Patent: April 16, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang-Yeon Yu, Kui-Han Ko, Il-Han Park, June-Hong Park, Joo-Yong Park, Joon-Young Park, Bong-Soon Lim
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Publication number: 20240081663Abstract: 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.Type: ApplicationFiled: March 7, 2023Publication date: March 14, 2024Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Soon PARK, Ui Kum Kwon, Young Soo Kim, Hye Rim Lim
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Patent number: 11911185Abstract: An apparatus for estimating bio-information may include: a bio-signal acquirer configured to acquire a bio-signal; and a processor configured to extract one or more first feature values from the bio-signal, determine a scale factor based on the first feature values, and to estimate bio-information based on the scale factor and the first feature values.Type: GrantFiled: February 18, 2022Date of Patent: February 27, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Soon Park, Ui Kun Kwon, Yunseo Ku, Seung Woo Noh, Seung Keun Yoon, Dae Geun Jang
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Patent number: 11898882Abstract: 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.Type: GrantFiled: November 10, 2022Date of Patent: February 13, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Soon Park, Ui Kun Kwon, Seung Keun Yoon, Dae Geun Jang
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Patent number: 11890084Abstract: An apparatus for estimating bio-information may include a sensor configured to obtain a bio-signal from an object, and a processor configured to obtain a second-order differential signal of the bio-signal, and extract a progressive wave component from the bio-signal using, based on a first local minimum point of the second-order differential signal being stable, the first local minimum point of the second-order differential signal, or extract the progressive wave component from the bio-signal using, based on the first local minimum point of the second-order differential signal being unstable, a maximum amplitude point in a systolic portion of the bio-signal.Type: GrantFiled: September 30, 2020Date of Patent: February 6, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Soon Park, Ui Kun Kwon, Seung Keun Yoon, Dae Geun Jang
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Patent number: 11844631Abstract: An apparatus for estimating bio-information includes: a sensor configured to obtain a bio-signal from an object; and a processor configured to obtain a second-order differential signal of the bio-signal, to detect at least one of an inflection point in a predetermined period of the second-order differential signal, and a zero-crossing point in the predetermined period of the second-order differential signal, to extract a feature based on the detected at least one of the inflection point and the zero-crossing point, and to estimate bio-information based on the extracted feature.Type: GrantFiled: July 18, 2022Date of Patent: December 19, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Soon Park, Seung Keun Yoon, Dae Geun Jang
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Patent number: 11813039Abstract: An apparatus for estimating bio-information includes a sensor configured to measure a bio-signal from an object, and a processor configured to obtain a feature based on the measured bio-signal, obtain a bio-information variation based on the obtained feature, obtain an adjustment coefficient based on the obtained bio-information variation, and estimate the bio-information by applying the obtained adjustment coefficient to the obtained bio-information variation.Type: GrantFiled: October 4, 2019Date of Patent: November 14, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Soon Park, Ui Kun Kwon, Seung Keun Yoon
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Publication number: 20230309844Abstract: An apparatus and method for estimating blood pressure are provided. The apparatus for estimating blood pressure includes: a photoplethysmogram (PPG) sensor configured to measure a PPG signal from an object; and a processor configured to: obtain a blood pressure variation for each of a plurality of blood pressure estimation models based on the PPG signal by using the plurality of blood pressure estimation models, obtain a combining coefficient for each of the plurality of blood pressure estimation models based on the obtained blood pressure variations, and estimate blood pressure by using the obtained combining coefficients.Type: ApplicationFiled: August 23, 2022Publication date: October 5, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dae Geun JANG, Ui Kun Kwon, Chang Soon Park, Young Soo Kim
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Publication number: 20230301526Abstract: An apparatus for non-invasively estimating blood pressure is provided. Thee 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.Type: ApplicationFiled: June 2, 2023Publication date: September 28, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ui Kun Kwon, Chang Soon Park, Dae Geun Jang
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Patent number: 11744526Abstract: An apparatus for 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 extract one or more feature values from the bio-signal, to adjust a combination coefficient for combining the one or more feature values based on a reference value associated with vascular compliance, and to estimate blood pressure based on the adjusted combination coefficient, and the one or more feature values extracted from the bio-signal.Type: GrantFiled: March 9, 2022Date of Patent: September 5, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ui Kun Kwon, Chang Soon Park
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Publication number: 20230255503Abstract: 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.Type: ApplicationFiled: April 19, 2023Publication date: August 17, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dae Geun JANG, Ui Kun KWON, Chang Soon PARK
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Patent number: 11701010Abstract: An apparatus for non-invasively estimating blood pressure is provided. Thee 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.Type: GrantFiled: March 20, 2019Date of Patent: July 18, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ui Kun Kwon, Chang Soon Park, Dae Geun Jang
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Publication number: 20230190118Abstract: 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.Type: ApplicationFiled: June 14, 2022Publication date: June 22, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Soon PARK, Ui Kun KWON, Young Soo KIM, Dae Geun JANG
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Publication number: 20230190117Abstract: 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.Type: ApplicationFiled: June 14, 2022Publication date: June 22, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Soon PARK, Ui Kun KWON, Young Soo KIM, Dae Geun JANG
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Patent number: 11660009Abstract: 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.Type: GrantFiled: March 6, 2020Date of Patent: May 30, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dae Geun Jang, Ui Kun Kwon, Chang Soon Park
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Patent number: 11665267Abstract: A method of a transmitter transmitting a packet encoded by applying a coding scheme based on a wireless channel environment to a receiver, and a method of the receiver detecting the coding scheme applied to the encoded packet and decoding the packet, in which the transmitter applies a spreading factor corresponding to the coding scheme to a preamble of the packet, and the receiver decodes the packet by detecting the coding scheme using the preamble.Type: GrantFiled: July 29, 2021Date of Patent: May 30, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Chang Soon Park, Young Jun Hong, Youngsoo Kim, Hyosun Hwang
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Patent number: 11642089Abstract: An apparatus for calibrating a bio-information estimation model is provided. The apparatus for calibrating a bio-information estimation model includes: a data obtainer configured to obtain at least one pulse wave signal; and a processor configured to extract a plurality of feature sets, each feature set including one or more features, from each of the at least one pulse wave signal, and configured to calibrate a bio-information estimation model based on a correlation distribution of the extracted plurality of feature sets.Type: GrantFiled: March 6, 2020Date of Patent: May 9, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seung Keun Yoon, Seung Woo Noh, Chang Soon Park, Jin Woo Choi