Patents by Inventor Chang-mok Choi

Chang-mok Choi 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: 20190171288
    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: Application
    Filed: February 5, 2019
    Publication date: June 6, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok CHOI, Sang Joon KIM, Seung Keun YOON
  • Publication number: 20190150846
    Abstract: A parallel biometric signal processor and a method of controlling the parallel biometric signal processor are described. The processor and corresponding method include amplifiers configured to amplify a biometric signal based on an amplifying attribute and converters configured to convert the amplified signal to a converted signal based on a converting attribute. The processor also includes preprocessors configured to preprocess the converted signal based on a preprocessing attribute, and feature extractors configured to extract a set of biometric information from an output signal of the preprocessors.
    Type: Application
    Filed: January 22, 2019
    Publication date: May 23, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chi Sung BAE, Sang Joon KIM, Chang Mok CHOI
  • Patent number: 10285012
    Abstract: A method and apparatus are configured to recognize mobile terminals positioned within a coverage area for short range communication with a user-specific device, wherein each mobile terminal comprises identification information for the user-specific device. The method and the apparatus provide a customized service corresponding to at least one of the mobile terminals.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: May 7, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok Choi, Sang Joon Kim, Su-Hyun Na, Yu Jin Na, Jong Kee Lee, Soon Kyu Jang, Young Ei Cho
  • Patent number: 10285039
    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: May 8, 2014
    Date of Patent: May 7, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Keun Yoon, Sang Joon Kim, Chang Mok Choi
  • Publication number: 20190110698
    Abstract: A bio-information processing apparatus may include: a bio-signal measurer configured to measure a bio-signal; a bio-information receiver configured to receive first bio-information; and a processor configured to estimate second bio-information based on the bio-signal, and to correct the second bio-information based on measurement circumstances of the first bio-information and the second bio-information.
    Type: Application
    Filed: February 27, 2018
    Publication date: April 18, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung Hoon KO, Seung Keun YOON, Jong Wook LEE, Dae Geun JANG, Chang Mok CHOI, Youn Ho KIM
  • Patent number: 10241574
    Abstract: A wearable biosignal interface and operation method of the wearable biosignal interface is provided wherein the wearable biosignal interface may perceive a motion unintentionally performed by a user and ignore a biosignal obtained thereby and thus, improve accuracy of a bio-based determination of an intention of the user for operating a device.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: March 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok Choi, Sang Joon Kim, Seung Keun Yoon
  • Patent number: 10238320
    Abstract: A method of calculating an amount of exercise performed includes measuring noise based on a relative difference in displacement between a skin of a user and a sensor attached to the skin of the user, and determining a number of steps taken by the user based on the measured noise.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: March 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok Choi, Byung Hoon Ko, Tak Hyung Lee, Kun Soo Shin
  • Publication number: 20190038219
    Abstract: An apparatus for estimating an anaerobic threshold may include a heart rate detector configured to detect a heart rate from a signal sensed from a user, and an anaerobic threshold estimator configured to estimate an anaerobic threshold of the user based on a change in the detected heart rate.
    Type: Application
    Filed: October 11, 2018
    Publication date: February 7, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Youn Ho Kim, Sang Kon Bae, Kun Soo Shin, Chang Mok Choi
  • Patent number: 10130300
    Abstract: An apparatus for estimating an anaerobic threshold may include a heart rate detector configured to detect a heart rate from a signal sensed from a user, and an anaerobic threshold estimator configured to estimate an anaerobic threshold of the user based on a change in the detected heart rate.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: November 20, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youn Ho Kim, Sang Kon Bae, Kun Soo Shin, Chang Mok Choi
  • Publication number: 20180332161
    Abstract: A wearable device and corresponding method include producing, at a wearable device, an incoming call processing option list in response to a rejection input from a user rejecting an incoming call from a mobile terminal. The wearable device and corresponding method further transmit, from the wearable device to the mobile terminal, a result value corresponding to a gesture of the user and in response to the incoming call processing option list.
    Type: Application
    Filed: July 23, 2018
    Publication date: November 15, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok CHOI, Sang Joon KIM, Su-Hyun NA, Yu-Jin NA, Jong Kee LEE, Soon Kyu JANG, Young Ei CHO
  • Publication number: 20180284912
    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: Application
    Filed: June 6, 2018
    Publication date: October 4, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sang Joon KIM, Seung Keun YOON, Chang Mok CHOI
  • Patent number: 10085669
    Abstract: Provided is a device for measuring a signal and a method of operating the same. The device may include electrodes attached to the device, and a control unit for determining the optimal pair of electrodes to be used for measuring the signal. Also, the device may include an output unit for measuring signals that are sensed by the electrodes.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: October 2, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok Choi, Sang Joon Kim, Min Young Mun
  • Patent number: 10063681
    Abstract: A wearable device and corresponding method include producing, at a wearable device, an incoming call processing option list in response to a rejection input from a user rejecting an incoming call from a mobile terminal. The wearable device and corresponding method further transmit, from the wearable device to the mobile terminal, a result value corresponding to a gesture of the user and in response to the incoming call processing option list.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: August 28, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok Choi, Sang Joon Kim, Su-Hyun Na, Yu-Jin Na, Jong Kee Lee, Soon Kyu Jang, Young Ei Cho
  • Patent number: 10019078
    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: February 4, 2014
    Date of Patent: July 10, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Joon Kim, Seung Keun Yoon, Chang Mok Choi
  • Publication number: 20180132067
    Abstract: A method and apparatus are configured to recognize mobile terminals positioned within a coverage area for short range communication with a user-specific device, wherein each mobile terminal comprises identification information for the user-specific device. The method and the apparatus provide a customized service corresponding to at least one of the mobile terminals.
    Type: Application
    Filed: January 9, 2018
    Publication date: May 10, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok CHOI, Sang Joon KIM, Su-Hyun NA, Yu Jin NA, Jong Kee LEE, Soon Kyu JANG, Young Ei CHO
  • Patent number: 9936889
    Abstract: A method of controlling a threshold for detecting peaks of physiological signals includes: obtaining a physiological signal measured from a person being examined; determining whether a peak of the physiological signals is detected based on a result of comparing the physiological signals with a threshold; and controlling the threshold based on a minimum threshold and either the threshold or a feature value of the detected peak based on a result of the determining. When a threshold for detecting peaks of physiological signals is controlled, even if an interval between the peaks is irregular or there is a large difference in values of the peaks, the peaks can be accurately detected.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: April 10, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-mok Choi, Youn-ho Kim, Kun-soo Shin
  • Publication number: 20180055449
    Abstract: A wearable measurement apparatus capable of measuring a biometric signal is provided. The wearable measurement apparatus includes a main body, and a main-body elastic part disposed on a bottom surface of the main body, and configured to elastically support the main body against a body part of a user. The wearable measurement apparatus further includes a biometric signal sensor disposed apart from the main-body elastic part, and configured to detect a biometric signal from the body part, and a sensor elastic part interposed between the main body and the biometric signal sensor, and configured to form a step difference between a bottom surface of the biometric signal sensor and a bottom surface of the main-body elastic part, and elastically support the biometric signal sensor against the main body.
    Type: Application
    Filed: February 7, 2017
    Publication date: March 1, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung Hoon KO, Yong Joo KWON, Youn Ho KIM, Sang Yun PARK, Jin Hyun YUN, Jong Wook LEE, Chang Mok CHOI
  • Patent number: 9877160
    Abstract: A method and apparatus are configured to recognize mobile terminals positioned within a coverage area for short range communication with a user-specific device, wherein each mobile terminal comprises identification information for the user-specific device. The method and the apparatus provide a customized service corresponding to at least one of the mobile terminals.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: January 23, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok Choi, Sang Joon Kim, Su-Hyun Na, Yu Jin Na, Jong Kee Lee, Soon Kyu Jang, Young Ei Cho
  • Patent number: 9811648
    Abstract: A wearable device includes a first sensor configured to detect a first biosignal generated in response to a gesture performed by a user, and a second sensor configured to detect a second biosignal of the user. The device further includes a memory configured to store, with respect to at least one user, information of the first biosignal and the second biosignal, and a processor configured to initiate user authentication based on a result of determining whether the detected first biosignal corresponds to the stored information, and authenticate the user by comparing the detected second biosignal to the stored information.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: November 7, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok Choi, Sang Joon Kim, Seung Keun Yoon
  • Patent number: 9681840
    Abstract: A wearable mobile device and a method of detecting a biosignal with a wearable mobile device are provided. A method of detecting a biosignal with a wearable mobile device involves determining whether a wearable mobile device is closely attached to a user; and providing a biosignal-based service in response to the wearable mobile device being determined to be closely attached to the user.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: June 20, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok Choi, Sang Joon Kim, Sang Il Park, Se O Lee, Young Joong Jun