Patents by Inventor Sang Hyun Cho

Sang Hyun Cho 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).

  • Patent number: 9148939
    Abstract: An apparatus for removing static electricity of a fuel cell stack manufacturing device, includes a cartridge in which a plurality of Membrane Electrode Assemblies (MEAs) are received, an air nozzle portion disposed in an upper portion of the cartridge and including an air flow channel for air movement, a plurality of nozzle holes defined along an inner side of the air nozzle portion, which faces the MEAs disposed in the cartridge, to communicate with the air flow channel, and an air inlet portion configured to be supplied with ionized air from the outside to deliver the ionized air to the air flow channel of the air nozzle portion.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: September 29, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Nam Gu Lee, Sang Hyun Cho
  • Publication number: 20150188155
    Abstract: A membrane-electrode assembly (MEA) for fuel cells includes an electricity-generating array including an anode, a cathode, and an electrolyte membrane. A subgasket array includes an anode subgasket surrounding a periphery of the anode and a cathode subgasket surrounding a periphery of the cathode. A junction array includes a polar junction and a nonpolar junction surrounding a periphery of the electrolyte membrane and attaching the anode subgasket and the cathode subgasket to each other.
    Type: Application
    Filed: June 18, 2014
    Publication date: July 2, 2015
    Inventors: Bo Ki Hong, Kook II Han, Ji Yeon Park, Byeong Heon Jeong, Sang Hyun Cho, Chae Won Lim
  • Publication number: 20150169983
    Abstract: The method for extracting salient object from stereoscopic video includes: dividing regions based on the similarity of color and the distance between pixels in a left-eye image and a right-eye image which are used for an input stereoscopic image; creating a disparity map based on a disparity obtained from a pixel difference of the left-eye image and the right-eye image; calculating a contrast-based saliency by comparing the divided regions and the divided regions of the disparity map; calculating a prior-knowledge-based saliency based on a prior-knowledge for the divided regions and the divided regions of the disparity map; and extracting salient regions of the image based on the contrast-based saliency and the prior-knowledge-based saliency.
    Type: Application
    Filed: April 25, 2014
    Publication date: June 18, 2015
    Applicant: CATHOLIC UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION
    Inventors: Hang-Bong KANG, Sang-Hyun CHO
  • Patent number: 9055259
    Abstract: A method for controlling a remote controller and a multimedia device is disclosed. The multimedia device connected to an external electronic device includes a memory configured to store at least string and on screen display (OSD) graphic data corresponding thereto, a video processor configured to process a video image received from the external electronic device, a detection module configured to detect a string in the video image, a controller configured to access the memory and extract OSD graphic data corresponding to the detected string, a display module configured to output the extracted OSD graphic data, the OSD graphic data being divided into one or more regions, and a communication module configured to transmit a command signal corresponding to a specific region to the external electronic device or the remote controller if the specific region in the OSD graphic data is selected.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 9, 2015
    Assignee: LG Electronics Inc.
    Inventors: Obong An, Geonwoo Kim, Sang Hyun Cho
  • Publication number: 20150063403
    Abstract: A temperature sensor having calibration function according to temperature, a method of operating the same, and a device including the same are provided. The temperature sensor includes a reference circuit configured to generate at least one temperature information signal that varies according to a temperature, and generate at least one reference signal that is substantially constant relative to the temperature; and a digital temperature generator configured to receive the at least one temperature information signal and the at least one reference signal generated by the reference circuit, and generate a digital temperature information signal indicative of the temperature based on the at least one temperature information signal and the at least one reference signal, wherein one of the reference circuit and the digital temperature generator is configured to receive a calibration signal and adjust the at least one reference signal based on the calibration signal.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Sang Hyun CHO, Myoung Oh KI, Joo Sung LEE, Hyoung Jong KO, Sang Ho KIM, Ho Jin PARK, Seoung Jae YOO
  • Publication number: 20150062771
    Abstract: An apparatus for removing static electricity of a fuel cell stack manufacturing device, includes a cartridge in which a plurality of Membrane Electrode Assemblies (MEAs) are received, an air nozzle portion disposed in an upper portion of the cartridge and including an air flow channel for air movement, a plurality of nozzle holes defined along an inner side of the air nozzle portion, which faces the MEAs disposed in the cartridge, to communicate with the air flow channel, and an air inlet portion configured to be supplied with ionized air from the outside to deliver the ionized air to the air flow channel of the air nozzle portion.
    Type: Application
    Filed: December 10, 2013
    Publication date: March 5, 2015
    Applicant: Hyundai Motor Company
    Inventors: Nam Gu LEE, Sang Hyun CHO
  • Publication number: 20150063420
    Abstract: A temperature sensor, a processor including the same, and a method of operating the same are provided.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Sang Hyun CHO, Hyung Jong KO, Kyung Soo PARK, Seoung Jae YOO, Sang Ho KIM, Ho Jin PARK
  • Patent number: 8916650
    Abstract: The present invention relates to an inner-plasticized vinyl chloride-based copolymer resin not requiring plasticizers and a preparation method thereof. Specifically, the vinyl chloride-based copolymer resin is prepared by a suspension polymerization method of initiating the polymerization of vinyl chloride monomer, feeding a certain amount of butyl acrylate continuously or discontinuously thereinto and carrying out the additional polymerization at the temperature higher than the polymerization initiation temperature so as to prepare a core-shell type vinyl chloride-based random copolymer resin. The vinyl chloride-based copolymer resin of core-shell structure prepared by the present invention includes vinyl chloride-butyl acrylate copolymer, and it can provide a vinyl chloride-butyl acrylate copolymer product which can be processed without plasticizers positively necessary to produce a soft product.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: December 23, 2014
    Assignee: Hanwha Chemical Corporation
    Inventors: Ji-Woo Kim, Jee-Hyong Lee, Jung-Ho Kong, Yong-Kook Jung, Sang-Hyun Cho
  • Publication number: 20140275425
    Abstract: The present invention relates to an inner-plasticized vinyl chloride-based copolymer resin not requiring plasticizers and a preparation method thereof. Specifically, the vinyl chloride-based copolymer resin is prepared by a suspension polymerization method of initiating the polymerization of vinyl chloride monomer, feeding a certain amount of butyl acrylate continuously or discontinuously thereinto and carrying out the additional polymerization at the temperature higher than the polymerization initiation temperature so as to prepare a core-shell type vinyl chloride-based random copolymer resin. The vinyl chloride-based copolymer resin of core-shell structure prepared by the present invention includes vinyl chloride-butyl acrylate copolymer, and it can provide a vinyl chloride-butyl acrylate copolymer product which can be processed without plasticizers positively necessary to produce a soft product.
    Type: Application
    Filed: July 16, 2013
    Publication date: September 18, 2014
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Ji-Woo Kim, Jee-Hyong Lee, Jung-Ho Kong, Yong-Kook Jung, Sang-Hyun Cho
  • Patent number: 8765326
    Abstract: The present invention features a fuel cell stack that preferably includes an electricity generating assembly having a plurality of unit cells that are suitably disposed one after another; a pair of end plates pressedly disposed respectively at upper and lower ends of the electricity generating assembly; and a joining device suitably engaging the end plates by a rope, where pressure is applied to the electricity generating assembly by means of tension of the rope, and the length and tension of the rope is suitably controlled.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: July 1, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea Advanced Institute of Science and Technology
    Inventors: Haeng Jin Ko, Young Bum Kum, Young Woo Noh, Sae Hoon Kim, Sang Hyun Cho, Jung Do Suh, Kwi Seong Jeong, Junghan Yu, Byung Ki Ahn, Duck Whan Kim, Sung Keun Lee, Dai Gil Lee, Ha Na Yu
  • Publication number: 20140158259
    Abstract: A steel plate for linepipes having ultra-high strength and excellent low temperature toughness, and a method for manufacturing the same are disclosed. The steel plate has a strength of 930 MPa or more and excellent toughness even with much smaller amounts of alloying elements than that of conventional steel plates, and a method for manufacturing the same. The steel includes by weight %: 0.03-0.10% C; 0-0.6% Si; 1.6-2.1% Mn; 0-1.0% Cu; 0-1.0% Ni; 0.02-0.06% Nb; 0-0.1% V; 0.1-0.5% Mo; 0-1.0% Cr; 0.005-0.03% Ti; 0.01-0.06% Al; 0.0005-0.0025% B; 0.001-0.006% N; 0-0.006% Ca; 0.02% or less P; 0.005% or less S; and the balance Fe and unavoidable impurities. The microstructure includes at least about 75 area percent of a mixture of bainitic ferrite and acicular ferrite.
    Type: Application
    Filed: August 12, 2013
    Publication date: June 12, 2014
    Applicant: POSCO
    Inventors: Seong Soo Ahn, Jang Yong Yoo, Sang Hyun Cho
  • Publication number: 20140119499
    Abstract: A pinhole detection system of a fuel cell element unit including a density measurement module that calculates a density of a fuel cell element unit using weight and volume data measured from electronic weight balance and 3D scan type volume integrator. Photon energy ranges of X-ray beam and window species of the pinhole detection system automatically are selected from Group 1 or Group 2 according to the density reference point for a fuel cell element, and a stage on which a fuel cell element unit is disposed to be detected. A drive portion that moves the stage to rotate the fuel cell element unit. An X-ray source is disposed at one side of the stage to apply X-ray to the fuel cell element unit that rotates. An image detector detects an X-ray penetrating the fuel cell element unit, and a computer tomography that reconstructs a three dimensional tomogram.
    Type: Application
    Filed: January 8, 2014
    Publication date: May 1, 2014
    Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANY
    Inventors: Sang Yeoul Ahn, Keun Je Lee, Sang Hyun Cho, Jea Suk Park, Sung Keun Lee, Byung Ki Ahn, Tae Won Lim
  • Publication number: 20140055675
    Abstract: A method for controlling a remote controller and a multimedia device is disclosed. The multimedia device connected to an external electronic device includes a memory configured to store at least string and on screen display (OSD) graphic data corresponding thereto, a video processor configured to process a video image received from the external electronic device, a detection module configured to detect a string in the video image, a controller configured to access the memory and extract OSD graphic data corresponding to the detected string, a display module configured to output the extracted OSD graphic data, the OSD graphic data being divided into one or more regions, and a communication module configured to transmit a command signal corresponding to a specific region to the external electronic device or the remote controller if the specific region in the OSD graphic data is selected.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 27, 2014
    Inventors: Obong AN, Geonwoo Kim, Sang Hyun Cho
  • Publication number: 20140047248
    Abstract: A method of controlling a load current is provided. By the method, a battery voltage control operation is begun when a battery voltage becomes lower than a first threshold value, whether a gradient of the battery voltage is a positive gradient or a negative gradient is determined at an interval of a reference or, alternatively, predetermined control time, the load current is controlled based on the gradient of the battery voltage at an interval of the reference or, alternatively, predetermined control time, and the battery voltage control operation is finished when the battery voltage becomes higher than a second threshold value.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 13, 2014
    Inventors: Dong-Hun HEO, Sang-Hyun CHO, Hyung-Jong KO
  • Publication number: 20140033253
    Abstract: The present invention relates to an image display device and a method for operating same. According to an embodiment of the present invention, a method for operating an image display device uses a remote controller, and comprises the steps of: displaying a pointer in a first area of a display; receiving movement coordinate information of the pointer from the remote controller; restoring the first area using a prestored image when the first area does not overlap a second area where a pointer is displayed, based on the movement coordinate information; storing an image of the second area; and displaying a pointer in the second area. This enables the pointer of the remote controller to be easily displayed.
    Type: Application
    Filed: January 30, 2012
    Publication date: January 30, 2014
    Inventors: Sang Hyun Cho, Woo Seok Ahn, Youk Kwon, Jang Hee Lee, Young Wau Lim
  • Patent number: 8404397
    Abstract: The present invention features a fuel cell stack that preferably includes an electricity generating assembly having a plurality of unit cells that are suitably disposed one after another; a pair of end plates pressedly disposed respectively at upper and lower ends of the electricity generating assembly; and a joining device suitably engaging the end plates by a rope, where pressure is applied to the electricity generating assembly by means of tension of the rope, and the length and tension of the rope is suitably controlled.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: March 26, 2013
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea Advanced Institute of Science and Technology
    Inventors: Haeng Jin Ko, Young Bum Kum, Young Woo Noh, Sae Hoon Kim, Sang Hyun Cho, Jung Do Suh, Kwi Seong Jeong, Junghan Yu, Byung Ki Ahn, Duck Whan Kim, Sung Keun Lee, Dai Gil Lee, Ha Na Yu
  • Patent number: 8350608
    Abstract: Provided is a PLL circuit including automatic frequency control circuit and an operating method thereof. The voltage controlled oscillator is primarily controlled by an automatic frequency control circuit, and is secondarily controlled by a loop filter. The voltage controlled oscillator outputs a coarsely-tuned oscillation signal when primarily controlled, and outputs a finely-tuned oscillation signal when secondarily controlled. The PLL circuit can have a quick frequency fixing time, and output the oscillation signal having a broad and stable frequency. Moreover, the noise characteristic of the PLL circuit is enhanced.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: January 8, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hui Dong Lee, Seok Ju Yun, Kwi Dong Kim, Jong-Kee Kwon, Sang-Hyun Cho
  • Publication number: 20120307962
    Abstract: X-ray fluorescence computed tomography (XFCT) using polychromatic x-rays is provided herein. The XFCT of the presently disclosed subject matter allows for the imaging of various cells loaded with metallic nanoparticles using polychromatic diagnostic energy x-rays. Both imaging of nanoparticles distributed within a cell and the quantification of nanoparticle concentration within the cell, in some configurations, may be accomplished. The x-ray source may, in some examples, provide a pencil beam or a cone/fan beam x-ray configuration.
    Type: Application
    Filed: December 16, 2010
    Publication date: December 6, 2012
    Applicant: Georgia Tech Resarch Corporation
    Inventor: Sang Hyun Cho
  • Patent number: 8274317
    Abstract: A phase-locked loop (PLL) circuit including a voltage-controlled oscillator (VCO) with a variable gain is provided. A phase frequency detector (PFD) detects a phase difference between a reference signal and a PLL feedback signal. A charge pump and a loop filter sequentially process an output signal of the PFD. A VCO has different gains according to a mode transition. A control voltage applied to the VCO is selected from an output signal of the loop filter and an additional control signal according to the mode transition.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: September 25, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sang Hyun Cho, Hui Dong Lee, Kwi Dong Kim, Jong Kee Kwon, Seung Tak Ryu
  • Patent number: RE45619
    Abstract: Disclosed is a wireless communication system, more particularly, a receiver and a chipset for DSRC.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: July 21, 2015
    Assignee: Intellectual Discovery Co., Ltd.
    Inventors: Sangho Shin, Sang-Hyun Cho, Seok-Oh Yun, Jong-Moon Kim