Patents by Inventor Hyun Chool Shin
Hyun Chool Shin 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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Patent number: 11452483Abstract: The present invention relates to an apparatus for eliminating motion artifacts and a method thereof, and the method for eliminating motion artifacts includes steps of receiving a PPG signal and three-axis (X-axis, Y-axis, and Z-axis) acceleration signals measured from an examinee, extracting the PPG signal and the three-axis acceleration signals by a period of a predetermined unit of time and filtering the signals at a preset bandwidth, Fourier-transforming the PPG signal and the three-axis acceleration signals corresponding to the extracted period, arranging power spectra of the X-axis, Y-axis, and Z-axis in ascending order of value of average power spectrum by calculating an average power of each frequency domain of the three-axis accelerations, and extracting a final power spectrum of the PPG signal by sequentially eliminating power spectra of the X, Y, and Z-axis accelerations from the power spectrum of the PPG signal in an order of arrangement.Type: GrantFiled: June 23, 2017Date of Patent: September 27, 2022Assignee: SOONGSIL UNIVERSITY RESEARCH CONSORTIUM TECHNO-PARKInventors: Hyun-Chool Shin, Ji Hun An, Hee Mang Song
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Patent number: 10389421Abstract: The present invention relates to an apparatus for estimating an arrival-angle of a reception signal and a beam-forming apparatus in a radio wave receiver, such as radar. More specifically, the present invention relates to an apparatus for accurately estimating an arrival-angle of a reception signal, or an apparatus for performing the beam-forming of a reception signal by using a multi-reception array antenna, by using a reference value that is obtained by calculating the degree of distortion of the magnitude and phase of a signal for each reception angle.Type: GrantFiled: October 20, 2016Date of Patent: August 20, 2019Assignees: Mando Corporation, Soongsil University Foundation of University-Industry CooperationInventors: JaeEun Lee, HaeSueng Lim, Seong Hee Jeong, Hyun-Chool Shin
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Publication number: 20190192082Abstract: The present invention relates to an apparatus for eliminating motion artifacts and a method thereof, and the method for eliminating motion artifacts includes steps of receiving a PPG signal and three-axis (X-axis, Y-axis, and Z-axis) acceleration signals measured from an examinee, extracting the PPG signal and the three-axis acceleration signals by a period of a predetermined unit of time and filtering the signals at a preset bandwidth, Fourier-transforming the PPG signal and the three-axis acceleration signals corresponding to the extracted period, arranging power spectra of the X-axis, Y-axis, and Z-axis in ascending order of value of average power spectrum by calculating an average power of each frequency domain of the three-axis accelerations, and extracting a final power spectrum of the PPG signal by sequentially eliminating power spectra of the X, Y, and Z-axis accelerations from the power spectrum of the PPG signal in an order of arrangement.Type: ApplicationFiled: June 23, 2017Publication date: June 27, 2019Applicant: SOONGSIL UNIVERSITY RESEARCH CONSORTIUM TECHNO-PARKInventors: Hyun-Chool SHIN, Ji Hun AN, Hee Mang SONG
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Publication number: 20170117946Abstract: The present invention relates to an apparatus for estimating an arrival-angle of a reception signal and a beam-forming apparatus in a radio wave receiver, such as radar. More specifically, the present invention relates to an apparatus for accurately estimating an arrival-angle of a reception signal, or an apparatus for performing the beam-forming of a reception signal by using a multi-reception array antenna, by using a reference value that is obtained by calculating the degree of distortion of the magnitude and phase of a signal for each reception angle.Type: ApplicationFiled: October 20, 2016Publication date: April 27, 2017Inventors: JaeEun LEE, HaeSueng LIM, Seong Hee JEONG, Hyun-Chool SHIN
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Patent number: 9183760Abstract: Provided are a method and apparatus for recognizing sign language using an electromyogram sensor and a gyro sensor. The method includes the steps of (a) receiving a gyro measurement signal and an electromyogram measurement signal from the gyro sensor and the electromyogram sensor which are attached to the body of a subject, (b) determining to which of groups clustered with similar fingerspelling motions the gyro measurement signal belongs, (c) acquiring a Gaussian model for the electromyogram measurement signal, and (d) comparing the acquired Gaussian model with Gaussian candidate models for candidate fingerspelling motions which belong to the group determined in step (b), and recognizing the candidate fingerspelling motion corresponding to the Gaussian candidate model that is most similar to the acquired Gaussian model as the fingerspelling motion of the subject.Type: GrantFiled: October 28, 2011Date of Patent: November 10, 2015Assignee: Foundation of Soongsil University-Industry CooperationInventors: Hyun Chool Shin, Kyung Jin You, Ki Won Rhee, Hee Su Kang
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Publication number: 20130295529Abstract: Provided are a method and apparatus for recognizing sign language using an electromyogram sensor and a gyro sensor. The method includes the steps of (a) receiving a gyro measurement signal and an electromyogram measurement signal from the gyro sensor and the electromyogram sensor which are attached to the body of a subject, (b) determining to which of groups clustered with similar fingerspelling motions the gyro measurement signal belongs, (c) acquiring a Gaussian model for the electromyogram measurement signal, and (d) comparing the acquired Gaussian model with Gaussian candidate models for candidate fingerspelling motions which belong to the group determined in step (b), and recognizing the candidate fingerspelling motion corresponding to the Gaussian candidate model that is most similar to the acquired Gaussian model as the fingerspelling motion of the subject.Type: ApplicationFiled: October 28, 2011Publication date: November 7, 2013Applicant: FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATIONInventors: Hyun Chool Shin, Kyung Jin You, Ki Won Rhee, Hee Su Kang
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Publication number: 20120221177Abstract: Navigation of a robot is controlled using an electromyography sensor and an acceleration sensor by (a) comparing a signal from an electromyography sensor mounted to a human body with a prestored threshold value to determine whether to control the robot, (b) if the robot is to be controlled, comparing a signal obtained from an acceleration sensor mounted to the human body with each prestored reference model of an acceleration sensor signal to infer a control operation of the robot, and (c) controlling navigation of the robot to correspond to the inferred control operation of the robot. It is first determined whether to control the robot using the electromyography sensor signal, inferred by calculating a Euclidean distance between a current acceleration sensor signal and a reference model previously acquired for each operation, and the robot is controlled based on the inferred operation, thereby increasing accuracy and reliability of the robot control.Type: ApplicationFiled: November 9, 2011Publication date: August 30, 2012Applicant: Foundation of Soongsil University-Industry CooperationInventors: Hyun Chool SHIN, Ki Won RHEE, Kyung Jin YOU, Hee Su KANG
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Publication number: 20100146141Abstract: The present invention relates to a method and apparatus for transmitting digital broadcasting signals and a method and apparatus for receiving digital broadcasting signals that divide a stream into a plurality of layers according to characteristics of the stream, that independently process the layers, and that dynamically allocate frequencies on the basis of the processed signals. A method of transmitting digital broadcasting signals includes dividing a single stream into a plurality of layers according to characteristics of the stream; performing encoding and mapping on each of the layers; and dynamically allocating a frequency to each of the layers on the basis of the number of symbols for each layer.Type: ApplicationFiled: May 30, 2008Publication date: June 10, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Hyoung Soo Lim, Hyun-Chool Shin, Jae Hyun Seo, Heung Mook Kim, Yong Tae Lee, Sung Ik Park, Jong Soo Lim, Soo In Lee
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Patent number: 7271853Abstract: An apparatus and a method for correcting a distorted image is capable of correcting an optical distortion of an image and misconvergence by prewarping an inputted image without using a convergence yoke, and an image displayer using the same. The apparatus for correcting an image distortion for an image displayer in which an image signal is inputted to display an image on a screen and an image distortion is corrected, includes: a reference image generator for generating a predetermined reference image; a camera for inputting the reference image and photographing an image outputted on the screen; and a distortion information extracting unit for comparing the photographed image outputted from the camera and the reference image outputted from the reference image generator, and generating distortion correction information to correct a distortion of the photographed image in case that the image has been distorted.Type: GrantFiled: November 24, 2004Date of Patent: September 18, 2007Assignee: LG Electronics Inc.Inventors: Woo Jin Song, Kyu Young Hwang, Hyun Chool Shin, Chung Hee Lee, Jong Hwa Kim
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Patent number: 6836298Abstract: An apparatus and a method for correcting a distorted image is capable of correcting an optical distortion of an image and misconvergence by prewarping an inputted image without using a convergence yoke, and an image displayer using the same. The apparatus for correcting an image distortion for an image displayer in which an image signal is inputted to display an image on a screen and an image distortion is corrected, includes: a reference image generator for generating a predetermined reference image; a camera for inputting the reference image and photographing an image outputted on the screen; and a distortion information extracting unit for comparing the photographed image outputted from the camera and the reference image outputted from the reference image generator, and generating distortion correction information to correct a distortion of the photographed image in case that the image has been distorted.Type: GrantFiled: December 15, 2000Date of Patent: December 28, 2004Assignee: LG Electronics Inc.Inventors: Woo Jin Song, Kyu Young Hwang, Hyun Chool Shin, Chung Hee Lee, Jong Hwa Kim
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Publication number: 20020164083Abstract: An apparatus and a method for correcting a distorted image is capable of correcting an optical distortion of an image and misconvergence by prewarping an inputted image without using a convergence yoke, and an image displayer using the same. The apparatus for correcting an image distortion for an image displayer in which an image signal is inputted to display an image on a screen and an image distortion is corrected, includes: a reference image generator for generating a predetermined reference image; a camera for inputting the reference image and photographing an image outputted on the screen; and a distortion information extracting unit for comparing the photographed image outputted from the camera and the reference image outputted from the reference image generator, and generating distortion correction information to correct a distortion of the photographed image in case that the image has been distorted.Type: ApplicationFiled: December 15, 2000Publication date: November 7, 2002Inventors: Woo Jin Song, Kyu Young Hwang, Hyun Chool Shin, Chung Hee Lee, Jong Hwa Kim