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: 20150289098
    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: September 10, 2014
    Publication date: October 8, 2015
    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: 20150257645
    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: August 20, 2014
    Publication date: September 17, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chi Sung BAE, Sang Joon KIM, Chang Mok CHOI
  • Publication number: 20150145673
    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: Application
    Filed: June 13, 2014
    Publication date: May 28, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chang Mok CHOI, Sang Joon KIM, Sang Il PARK, Se O LEE, Young Joong JUN
  • Publication number: 20150074797
    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: Application
    Filed: March 6, 2014
    Publication date: March 12, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Mok CHOI, Sang Joon KIM, Seung Keun YOON
  • Publication number: 20150054728
    Abstract: A biosignal interface apparatus includes a sensor configured to detect a target in contact with the sensor, a position identifier configured to identify a position of the sensor on the target, and a controller configured to control an operation mode of the sensor based on the identified position.
    Type: Application
    Filed: March 11, 2014
    Publication date: February 26, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Mok CHOI, Ui Kun KWON, Sang Kon BAE, Chi Sung BAE
  • Publication number: 20150036768
    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”.
    Type: Application
    Filed: March 7, 2014
    Publication date: February 5, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun KWON, Chang Soon PARK, Chi Sung BAE, Joon Seong KANG, Sang Joon KIM, Seung Keun YOON, Chang Mok CHOI
  • Publication number: 20150003572
    Abstract: A method and apparatus provide for stable signal demodulation in a communication system. The method and apparatus includes including detecting an erroneous demodulation value based on backward-demodulation of received signals, using a difference between a received signal to be demodulated and a preceding signal of the received signals and correcting the error demodulation value. Alternatively, backward-demodulation is used to confirm received signals.
    Type: Application
    Filed: February 4, 2014
    Publication date: January 1, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun KWON, Chang Soon PARK, Chi Sung BAE, Joon Seong KANG, Sang Joon KIM, Seung Keun YOON, Chang Mok CHOI
  • Publication number: 20140368474
    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: February 4, 2014
    Publication date: December 18, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Joon KIM, Seung Keun YOON, Chang Mok CHOI
  • Publication number: 20140368424
    Abstract: A presentation device and an method of operating the presentation device may quickly move to a desired area on a map by adjusting a level of an electromyographic (EMG) signal even though a range of a motion of an arm is limited when searching the map using a wearable mobile device. The presentation device includes a first sensor unit configured to contact a measurement target and to obtain an electromyographic (EMG) signal from the measurement target; and a display controller configured to control a field of view (FOV) window for displaying a map area based on the EMG signal.
    Type: Application
    Filed: January 22, 2014
    Publication date: December 18, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Mok CHOI, Sang Joon KIM, Sang Kon BAE, Seung Keun YOON
  • Publication number: 20140283599
    Abstract: A method and a wearable device to sense a motion of a user may include a motion sensor configured to sense a motion signal from a motion of a user of the wearable device, and a processor configured to calculate a motion of the wearable device based on the motion signal and position related information from a neighbor wearable device.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 25, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Joon KIM, Min Young MUN, Chang Mok CHOI
  • Publication number: 20140285134
    Abstract: A device and a method for an energy sharing network may include an energy store configured to store energy; an energy transmitter-receiver configured to transmit energy and energy related information to at least one neighbor device and to receive energy and energy related information from at least one neighbor device; and a controller configured to control the energy transmitter-receiver based on a predetermined condition.
    Type: Application
    Filed: November 14, 2013
    Publication date: September 25, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Joon KIM, Min Young MUN, Chang Mok CHOI
  • Publication number: 20140289872
    Abstract: Provided is a method and apparatus to detect and control flow of data shared in a terminal. A method to control data sharing may include accessing a program that shares a type of data with a terminal, displaying the accessed program on a screen organized by the type of data; and controlling the data to be shared with the accessed program in response to a control signal input on the screen.
    Type: Application
    Filed: September 26, 2013
    Publication date: September 25, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min Young MUN, Sang Joon KIM, Chang Mok CHOI
  • Publication number: 20140257129
    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: Application
    Filed: October 22, 2013
    Publication date: September 11, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Mok CHOI, Sang Joon KIM, Min Young MUN
  • Publication number: 20140188188
    Abstract: A system and method for skeletal muscle stimulation is provided for increasing muscle mass by stimulating a muscle in an optimal condition through a stimulus signal from an electrical stimulation device disposed at a stimulation position.
    Type: Application
    Filed: October 21, 2013
    Publication date: July 3, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Mok Choi, Byung Hoon Ko, Kun Soo Shin
  • Publication number: 20140137647
    Abstract: A one repetition maximum (1RM) estimating apparatus includes a potential signal receiving unit configured to receive a potential signal of a muscle from a sensor attached to a user, and a 1RM estimating unit configured to estimate a 1RM of the user based on the potential signal.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 22, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youn Ho Kim, Sang Kon Bae, Chang Mok Choi, Byung Hoon Ko, Kun Soo Shin
  • Publication number: 20140141937
    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: November 18, 2013
    Publication date: May 22, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youn Ho Kim, Sang Kon Bae, Kun Soo Shin, Chang Mok Choi
  • Publication number: 20140121566
    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: Application
    Filed: October 21, 2013
    Publication date: May 1, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Mok Choi, Byung Hoon Ko, Tak Hyung Lee, Kun Soo Shin
  • Publication number: 20130237868
    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: Application
    Filed: March 1, 2013
    Publication date: September 12, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-mok Choi, Youn-ho Kim, Kun-soo Shin
  • Publication number: 20130117207
    Abstract: A method of classifying an input pattern and a pattern classification apparatus are provided. The method includes enabling an artificial neural network to learn based on learning input data received by an input layer of the artificial neural network, determining classification of an input pattern received by the input layer of the enabled artificial neural network according to an output value obtained from an output layer of the artificial neural network, the obtained output value being based on the input pattern, updating connection intensities of a plurality of connection lines of the enabled artificial neural network to output a result value indicating the determined classification from the output layer when the input pattern, and determining updated classification of the input pattern according to an updated output value obtained from an output layer of the updated artificial neural network, the obtained updated output value being based on the input pattern.
    Type: Application
    Filed: September 25, 2012
    Publication date: May 9, 2013
    Inventors: Youn-ho Kim, Chang-mok Choi, Kun-soo Shin, Myoung-ho Lee, Jin-kwon Kim