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

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

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.

公开(公告)号：US11419561B2

公开(公告)日：2022-08-23

申请号：US15856234

申请日：2017-12-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: A61B5/021 ,  A61B5/00 ,  A61B5/029 ,  A61B5/11 ,  A61B5/026 ,  A61B5/02 ,  A61B5/0205 ,  A61B5/318 ,  A61B5/389

Abstract: An adaptive bio-signal feature combining apparatus includes: a feature extractor configured to extract first feature values and second feature values from a bio-signal of an object; a stable interval determiner configured to determine at least one stable interval in the bio-signal; a statistical variable calculator configured to calculate a statistical variable value of a first feature and a statistical variable value of a second feature for each of the at least one stable interval based on the first and second feature values extracted from the at least one stable interval; and a feature combiner configured to calculate an integrated combining coefficient that is used to combine the first feature and the second feature, based on the statistical variable value of the first feature and the statistical variable value of the second feature.

公开(公告)号：US11189236B2

公开(公告)日：2021-11-30

申请号：US16486889

申请日：2018-02-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kang Moon Seo ,  Young Soo Kim

IPC: G06F1/26 ,  G09G3/34 ,  H02M1/32

Abstract: Disclosed are a power stabilization circuit and a display device to which the power stabilization circuit is applied. The power stabilization circuit includes a thermistor provided on a first path through which an input power is supplied, to limit an inrush current of the power, a relay that provides a second path through which the power is supplied without passing through the thermistor, to allow the power to be transferred through the second path instead of the first path when a current is supplied, and a switching circuit that is switched to supply the current generated from the input power to the relay when an activation signal for activating at least one of a display and a backlight of the display is received.

公开(公告)号：US10476222B2

公开(公告)日：2019-11-12

申请号：US16069750

申请日：2017-01-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae-Jun You ,  Young Soo Kim ,  Gil Yong Chang

IPC: H01R35/04 ,  H01R13/04 ,  H01R13/514 ,  H01R31/06 ,  H01R13/11 ,  H01R103/00 ,  H01R24/28

Abstract: Disclosed is a plug-integrated adaptor that improves usability of a power strip by reducing interference with adjacent plugs when the adaptor is used in the power strip. A plug-integrated adaptor includes a case body having an open side and a printed circuit board therein, a case base provided to cover the open side of the case body and including a first side extending in a first direction and a second side having a length shorter than a length of the first side, a plug having a pair of pins arranged in a second direction and a plug case protruding from the case base and extending in the second direction, and a connecting member coupled to the pin of the plug and connecting the plug to the printed circuit board. The plug case extending in the second direction is inclined at an angle with a range of 0 to 45 degrees with respect to the case base extending in the first direction.

公开(公告)号：US10461982B2

公开(公告)日：2019-10-29

申请号：US15876948

申请日：2018-01-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sujit Jos ,  Kiran Bynam ,  Chang Soon Park ,  Jinesh Parameshwaran Nair ,  Chandrashekhar Thejaswi Pattaguppe Suryanarayan Bhat ,  Young Jun Hong ,  Young Soo Kim

IPC: H04L27/26 ,  H04L7/04 ,  H04L7/10

Abstract: A method and apparatus estimating carrier frequency offset (CFO) with timing synchronization are provided. The apparatus includes processor that receives analog-to-digital converter (ADC) samples, determines a coarse angle from the received ADC samples, obtains an improved coarse angle by altering the coarse angle based on a preamble duration, determines a base CFO estimate from the improved coarse angle and determines a plurality of candidate CFOs based on the base CFO estimate and a difference frequency.

公开(公告)号：US10256933B2

公开(公告)日：2019-04-09

申请号：US15033400

申请日：2014-10-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chang Soon Park ,  Young Jun Hong ,  Jinesh P Nair ,  Joon Seong Kang ,  Young Soo Kim ,  Sujit Jos ,  Manoj Choudhary

IPC: H04J13/16 ,  H04J13/00 ,  H04J13/10 ,  H04L25/49 ,  H04B1/04 ,  H04B1/7097 ,  H04L27/04 ,  H04L27/38 ,  H04L27/233 ,  H04L1/24 ,  H04L27/26 ,  H04L27/36

Abstract: A method and device for transmitting a preamble sequence is disclosed. A transmitter according to an embodiment may extract a first sequence for a non-coherent receiver and a second sequence for a coherent receiver, from ternary preamble sequences including elements −1, 0 and 1, and map the first sequence and the second sequence to a preamble including a plurality of bits to generate a third sequence that the non-coherent receiver and coherent receiver support.

公开(公告)号：US09998251B2

公开(公告)日：2018-06-12

申请号：US15033391

申请日：2014-10-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinesh Parameshwaran Nair ,  Young Jun Hong ,  Chang Soon Park ,  Sujit Jos ,  Young Soo Kim ,  Manoj Choudhary

IPC: H04J13/10 ,  H04B1/707 ,  H04B1/04 ,  H04J13/00 ,  H04L27/04 ,  H04J13/16 ,  H04L25/49 ,  H04B1/7097

CPC classification number: H04J13/16 ,  H04B1/0475 ,  H04B1/7097 ,  H04B2201/70707 ,  H04B2201/709709 ,  H04J13/0011 ,  H04J13/0022 ,  H04J13/0044 ,  H04J13/10 ,  H04J13/107 ,  H04L25/4923 ,  H04L27/04

Abstract: Embodiments herein achieve a method and system for selecting non-coherent spreading sequences with binary alphabets {0, 1} with variable spreading factors. The method generates circular shift equivalent sets of spreading sequences by circularly shifting base sequences with elements {1, 0} and having at least one variable spreading factor. The method determines whether each spreading sequence in the circular shift equivalent set meets pre-defined spreading sequence criteria. The spreading sequence criteria comprise balanced criteria, a non- repetition criteria, non-circular criteria, and conjugate criteria. Furthermore, the method selects the spreading sequence from expansions of at least one spreading sequence from the circular shift equivalent sets in response to determining that the spreading sequences in the circular shift equivalent sets meets the pre-defined spreading sequence criteria.

公开(公告)号：US09967114B2

公开(公告)日：2018-05-08

申请号：US15033352

申请日：2014-10-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chang Soon Park ,  Young Jun Hong ,  Sujit Jos ,  Young Soo Kim ,  Chandrashekhar Thejaswi Ps ,  Kiran Bynam ,  Manoj Choudhary

IPC: H04B1/707 ,  H04L25/03 ,  H04L25/49 ,  H04L27/04 ,  H04B1/709

CPC classification number: H04L25/03834 ,  H04B1/709 ,  H04L25/03312 ,  H04L25/4923 ,  H04L27/04

Abstract: A method and a transmitter for transmitting a pay load sequence are provided. The transmitter includes a ternary sequence mapper configured to map a binary data sequence to a ternary sequence stored in the transmitter, and a pulse shaping filter configured to generate a first signal based on the mapped ternary sequence. The ternary sequence includes elements of −1, 0, and 1.

公开(公告)号：US12121335B2

公开(公告)日：2024-10-22

申请号：US17580312

申请日：2022-01-20

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 ,  A61B5/029

CPC classification number: A61B5/021 ,  A61B5/02416 ,  A61B5/029 ,  A61B5/7239 ,  A61B2560/0223

Abstract: An apparatus for estimating blood pressure is provided. The apparatus for estimating blood pressure according to an example embodiment includes: a sensor configured to measure a photoplethysmogram (PPG) signal from an object; and a processor configured to detect a position of a dicrotic notch based on a local maximum point and a local minimum point of a second-order derivative signal of the PPG signal, to obtain a first value and a second value from a first section and a second section of the PPG signal divided based on the dicrotic notch of the PPG signal, to obtain a pulse pressure feature value based on the first value and the second value, and to estimate blood pressure based on a variation in the obtained pulse pressure feature value compared to a reference pulse pressure feature value.

公开(公告)号：US12016667B2

公开(公告)日：2024-06-25

申请号：US17540799

申请日：2021-12-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chang Mok Choi ,  Byung Hoon Ko ,  Jong Wook Lee ,  Youn Ho Kim ,  Young Soo Kim ,  Jeong Eun Hwang

IPC: A61B5/024 ,  A61B5/00 ,  A61B5/021 ,  A61B5/026

CPC classification number: A61B5/02416 ,  A61B5/0075 ,  A61B5/0082 ,  A61B5/02125 ,  A61B5/6826 ,  A61B5/0261

Abstract: An apparatus for obtaining bio-information may include a pulse wave sensor including a light source and a detector. The light source is configured to emit multi-wavelength light to an object of interest and the detector is configured to detect light reflected from the object. In addition, the apparatus may include a processor configured to obtain a change in volume of a blood vessel based on one or more of quantity of detected multi-wavelength light and absorbance coefficients of respective wavelengths of the multi-wavelength light and obtain bio-information based on the measured change in volume of the blood vessel.