Patents by Inventor Seung Keun Yoon

Seung Keun Yoon 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).

  • Publication number: 20210282648
    Abstract: An apparatus for estimating bio-information, the apparatus including a sensor configured to obtain a bio-signal of a subject; and a processor configured to estimate a variation in a Cardiac Output (CO)-related feature from the bio-signal, and obtain a progressive wave component, which is associated with a Total Peripheral Resistance (TPR)-related feature, from the bio-signal based on an estimation result of estimating the variation.
    Type: Application
    Filed: September 3, 2020
    Publication date: September 16, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Soon PARK, Ui Kun Kwon, Young Soo Kim, Seung Keun Yoon, Dae Geun Jang
  • Publication number: 20210228100
    Abstract: 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: Application
    Filed: September 30, 2020
    Publication date: July 29, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Soon PARK, Ui Kun KWON, Seung Keun YOON, Dae Geun JANG
  • Publication number: 20210177287
    Abstract: 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: Application
    Filed: May 28, 2020
    Publication date: June 17, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun KWON, Chang Soon PARK, Seung Keun YOON, Dae Geun JANG
  • Publication number: 20210085259
    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.
    Type: Application
    Filed: April 8, 2020
    Publication date: March 25, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun Kwon, Chang Soon Park, Seung Keun Yoon, Dae Geun Jang
  • Publication number: 20210068762
    Abstract: 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: Application
    Filed: May 15, 2020
    Publication date: March 11, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Soon PARK, Seung Keun YOON, Dae Geun JANG
  • Publication number: 20210000429
    Abstract: 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: Application
    Filed: March 6, 2020
    Publication date: January 7, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Keun YOON, Seung Woo Noh, Chang Soon Park, Jin Woo Choi
  • Publication number: 20200397309
    Abstract: An apparatus for calibrating a bio-information estimation model is provided. The apparatus may include a sensor configured to detect a bio-signal from an object of interest, and a processor configured to extract a first feature at each of a plurality of points of the bio-signal, extract a second feature at each of the plurality of points of the bio-signal, and determine a calibration point of the bio-information estimation model, from among the plurality of points of the bio-signal, based on a first degree of change in the first feature at each point relative to a first feature at a reference point and a second degree of change in the second feature at each point relative to a second feature at the reference point.
    Type: Application
    Filed: March 11, 2020
    Publication date: December 24, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae Geun Jang, Ui Kun Kwon, Chang Soon Park, Seung Keun Yoon
  • Patent number: 10856808
    Abstract: A bio-signal processing apparatus, a biometric information detection apparatus, and a method of detecting biometric information are provided. The bio-signal processing apparatus includes a first low pass filter (LPF) configured to have a first cutoff frequency, and output a first preprocessed signal having low frequency components of an input bio-signal that are less than the first cutoff frequency, a second LPF configured to have a second cutoff frequency, and output a second preprocessed signal in which high frequency components greater than or equal to the second cutoff frequency are removed from the input bio-signal, and a processor configured to output an output bio-signal for biometric information detection, based on the output first preprocessed signal and the output second preprocessed signal.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: December 8, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Keun Yoon, Ui Kun Kwon
  • Publication number: 20200352506
    Abstract: A bio-signal processing apparatus, a biometric information detection apparatus, and a method of detecting biometric information are provided. The bio-signal processing apparatus includes a first low pass filter (LPF) configured to have a first cutoff frequency, and output a first preprocessed signal having low frequency components of an input bio-signal that are less than the first cutoff frequency, a second LPF configured to have a second cutoff frequency, and output a second preprocessed signal in which high frequency components greater than or equal to the second cutoff frequency are removed from the input bio-signal, and a processor configured to output an output bio-signal for biometric information detection, based on the output first preprocessed signal and the output second preprocessed signal.
    Type: Application
    Filed: July 24, 2020
    Publication date: November 12, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Keun YOON, Ui Kun Kwon
  • Publication number: 20200275839
    Abstract: 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: Application
    Filed: October 4, 2019
    Publication date: September 3, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Soon PARK, Ui Kun KWON, Seung Keun YOON
  • Patent number: 10750998
    Abstract: A bio-signal processing apparatus, a biometric information detection apparatus, and a method of detecting biometric information are provided. The bio-signal processing apparatus includes a first low pass filter (LPF) configured to have a first cutoff frequency, and output a first preprocessed signal having low frequency components of an input bio-signal that are less than the first cutoff frequency, a second LPF configured to have a second cutoff frequency, and output a second preprocessed signal in which high frequency components greater than or equal to the second cutoff frequency are removed from the input bio-signal, and a processor configured to output an output bio-signal for biometric information detection, based on the output first preprocessed signal and the output second preprocessed signal.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: August 25, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Keun Yoon, Ui Kun Kwon
  • Publication number: 20200245880
    Abstract: A heartbeat index determination apparatus may include a pulse wave acquirer configured to acquire a plurality of pulse wave signals that are measured using light of different wavelengths; and a processor configured to measure wavelength-specific heartbeat index values from the plurality of pulse wave signals and determine that a wavelength-specific heartbeat index value that is obtained from the plurality of pulse wave signals a most number of times among the wavelength-specific heartbeat index values is a heartbeat index value of a user.
    Type: Application
    Filed: January 13, 2020
    Publication date: August 6, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ka Ram CHOI, Seung Keun YOON, Sang Kyu KIM
  • Publication number: 20200187835
    Abstract: An apparatus for estimating blood glucose using a photoplethysmography (PPG) signal is provided. The apparatus for estimating blood glucose includes: a pulse wave sensor configured to obtain a pulse wave signal from an object; and a processor configured to obtain at least two points from a waveform of the pulse wave signal, to extract a feature based on time values of the obtained at least two points, and to estimate blood glucose based on the extracted feature.
    Type: Application
    Filed: July 9, 2019
    Publication date: June 18, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ka Ram CHOI, Sang Kon BAE, So Young LEE, Seung Keun YOON
  • Patent number: 10649549
    Abstract: A device, a method, and a system recognize a motion using a gripped object. The motion recognition device may estimate a state of a wrist of a user according to a writing action using the gripped object and may estimate a joint motion of a body part related to the wrist according to the writing action. The device may then estimate a state of the gripped object according to the state of the wrist and the joint motion. Additionally, the motion recognition device may control an external device by using a control signal generated by continuously tracking the state of the object.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: May 12, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Joon Kim, Seung Keun Yoon, Chang Mok Choi
  • Patent number: 10652724
    Abstract: A wearable device and a communication method using the wearable device may include recognizing a gesture of a user by sensing at least one of a motion and a biosignal that occur in or around a portion of the user to which the wearable device is attached. A wireless communication connection is established for the wearable device with at least one of an external device, an internal device, or another wearable device based on the recognized gesture. Wireless communication is performed with at least one of the external device and the internal device with which the wireless communication connection is established.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 12, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Keun Yoon, Sang Joon Kim, Chang Mok Choi
  • Patent number: 10642359
    Abstract: A wearable biosignal interface, an apparatus for operating an external device, and an operation method of a wearable biosignal interface are provided. A wearable biosignal interface may include a motion sensor configured to obtain a first signal based on a motion of a target, a biosignal sensor disposed on the target and configured to obtain a second signal from the target, and a determination controller configured to determine a validity of the second signal based on the first signal.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: May 5, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok Choi, Sang Joon Kim, Seung Keun Yoon
  • Publication number: 20200113453
    Abstract: A blood pressure estimating apparatus is provided. The blood pressure estimating apparatus may include: a sensor configured to measure a bio-signal waveform; and a processor configured to obtain a first feature based on a first area under the bio-signal waveform in a first time interval, obtain a second feature based on a second area under the bio-signal waveform in a second time interval which is different from the first time interval, and estimate blood pressure based on the first feature and the second feature.
    Type: Application
    Filed: April 3, 2019
    Publication date: April 16, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Soon PARK, Ui Kun KWON, Seung Keun YOON, Dae Geun JANG
  • Publication number: 20200113527
    Abstract: An apparatus for estimating a blood pressure, includes a sensor configured to measure a bio-signal, and a processor configured to acquire a feature value from the bio-signal, and detect a blood pressure change sign, based on the feature value. The processor is further configured to acquire a scale factor, based on the blood pressure change sign, and estimate the blood pressure, based on the feature value and the scale factor.
    Type: Application
    Filed: June 27, 2019
    Publication date: April 16, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Soon PARK, Ui Kun Kwon, Seung Keun Yoon, Dae Geun Jang
  • Publication number: 20200113526
    Abstract: An apparatus for estimating blood pressure is provided. According to one embodiment, the apparatus for estimating blood pressure may include a sensor configured to measure a bio-signal from a subject, and a processor configured to acquire, form the bio-signal, a first feature value associated with cardiac output (CO) and a second feature value associated with total peripheral resistance (TPR), determine whether a current mechanism of blood pressure change of the subject is a post-exercise hypotension mechanism based on the first feature value and the second feature value, and estimate blood pressure according to determination of whether the current mechanism is the post-exercise hypotension mechanism.
    Type: Application
    Filed: May 17, 2019
    Publication date: April 16, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Soon PARK, Ui Kun KWON, Youn Ho KIM, Seung Keun YOON, Dae Geun JANG
  • Publication number: 20200085371
    Abstract: A bio-signal processing apparatus, a biometric information detection apparatus, and a method of detecting biometric information are provided. The bio-signal processing apparatus includes a first low pass filter (LPF) configured to have a first cutoff frequency, and output a first preprocessed signal having low frequency components of an input bio-signal that are less than the first cutoff frequency, a second LPF configured to have a second cutoff frequency, and output a second preprocessed signal in which high frequency components greater than or equal to the second cutoff frequency are removed from the input bio-signal, and a processor configured to output an output bio-signal for biometric information detection, based on the output first preprocessed signal and the output second preprocessed signal.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Keun Yoon, Ui Kun Kwon