Patents by Inventor Seung Hoon Yang

Seung Hoon Yang 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: 20160090120
    Abstract: A friction compensation logic of an MDPS (motor driven power steering) system to receive and to process a column torque signal and to output a friction compensation torque comprises: an accumulation speed adjusting portion to adjust an accumulation speed of a compensation section information set in the column torque signal; and a compensation amount adjusting portion in accordance with a vehicle speed to control so that the accumulation speed adjusting portion adjusts the accumulation speed of the compensation section information fast or slow in accordance with the vehicle speed, to adjust a compensation amount gain small or large in accordance with the vehicle speed, and to output a friction compensation torque.
    Type: Application
    Filed: April 28, 2015
    Publication date: March 31, 2016
    Inventor: Seung Hoon YANG
  • Patent number: 9205863
    Abstract: A control apparatus of a motor-driven power steering (MDPS) includes: a torque sensor configured to measure a driver's steering torque inputted to a steering wheel and output a steering torque signal; a steering angle sensor configured to measure a steering angle of the steering wheel; a variable notch filter configured to reduce a torque ripple for the steering torque signal depending on a steering angle speed which is a change rate of the steering angle with respect to time; a vehicle speed sensor configured to measure vehicle speed; and a controller configured to receive the steering angle, the steering torque signal, and the vehicle speed from the steering angle sensor, the variable notch filter, and the vehicle sensor, respectively, and control drivability of a driving motor according to a driving speed of a vehicle.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: December 8, 2015
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Seung Hoon Yang
  • Publication number: 20150241731
    Abstract: A liquid crystal display device includes a liquid crystal panel including first and second substrates and a liquid crystal layer between the first and second substrates; a backlight unit under the liquid crystal panel; a bottom frame including a horizontal surface and first, second, third, and fourth side surfaces, the first side surface corresponding to a first edge of the liquid crystal panel and being opposite to the second side surface, wherein the liquid crystal panel has a size larger than the bottom frame such that a side of the liquid crystal panel protrudes beyond the bottom frame; a main frame including a first guide portion corresponding to the first edge and a second guide portion corresponding a second edge of the liquid crystal panel opposite to the first edge; and an adhesive covering the side of the liquid crystal panel and an outer side of the third and fourth side surfaces.
    Type: Application
    Filed: August 5, 2014
    Publication date: August 27, 2015
    Inventors: Hae-Hyeon Jeong, Seung-Hoon Yang, Won-Tae Kim, Min-Woo Kim, Kwang-Min Lee, Mi-Ra Kim
  • Publication number: 20150066302
    Abstract: A control apparatus of a motor-driven power steering (MDPS) includes: a torque sensor configured to measure a driver's steering torque inputted to a steering wheel and output a steering torque signal; a steering angle sensor configured to measure a steering angle of the steering wheel; a variable notch filter configured to reduce a torque ripple for the steering torque signal depending on a steering angle speed which is a change rate of the steering angle with respect to time; a vehicle speed sensor configured to measure vehicle speed; and a controller configured to receive the steering angle, the steering torque signal, and the vehicle speed from the steering angle sensor, the variable notch filter, and the vehicle sensor, respectively, and control drivability of a driving motor according to a driving speed of a vehicle.
    Type: Application
    Filed: November 26, 2013
    Publication date: March 5, 2015
    Applicant: Hyundai Mobis Co., Ltd.
    Inventor: Seung Hoon YANG
  • Patent number: 8928841
    Abstract: A backlight device for a liquid crystal display includes a substrate, and a plurality of white, red, green, and blue light emitting diodes arranged on the substrate.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: January 6, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Bum Kim, Seung Hoon Yang
  • Patent number: 8350987
    Abstract: A backlight unit adapted to enhance brightness and reduce manufacturing time and costs is disclosed. The backlight unit includes a bottom cover with an opened upper surface, a plurality of light emission diodes arranged on an inner edge of the bottom cover, a light guide plate disposed parallel to the plurality of light emission diodes, and a diffusion sheet disposed on the light guide plate. The diffusion sheet is provided to have an overlapped area with a support main which is combined with the bottom cover. Also, a reflection material layer is formed on an upper surface of the diffusion sheet corresponding to the overlapped area.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: January 8, 2013
    Assignee: LG Display Co. Ltd.
    Inventors: Seung Hoon Yang, Yeoun Jei Jung
  • Patent number: 8204652
    Abstract: Disclosed herein is a method for compensating steering of a motor drive power steering (MDPS) system. In this method, the MDPS system determines a slip of a vehicle, calculates a steering compensation value and controls a gain based on moment input from an electronic stability program (ESP) system under coordinate control between the MDPS system and the ESP system, so that stability of the vehicle can be enhanced by reducing heterogeneous steering and preventing over steering.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: June 19, 2012
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Seung Hoon Yang
  • Patent number: 8057088
    Abstract: A backlight unit for a liquid crystal display panel includes a lamp, a plurality of optical sheets, a light guide that guides light from the lamp toward the optical sheets, and a reflector facing a rear surface of the light guide. The light guide includes a first plurality of geometric shapes at the rear surface thereof that substantially directs the light incident on the light guide toward the optical sheets, and a second plurality of geometric shapes at a peripheral portion of the rear surface thereof to prevent the reflector from sticking to the light guide, a density of the second plurality of geometric shapes is less than the density of the first plurality of geometric shapes.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: November 15, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Sun-Hee Lee, Seung-Hoon Yang
  • Patent number: 7990512
    Abstract: A liquid crystal display module includes a liquid crystal display panel and a backlight unit under the liquid crystal display panel. The backlight unit includes at least one light emitting diode. The liquid crystal display module further comprises a bottom frame surrounding the backlight unit. The bottom frame comprises a printed circuit board and the at least one light emitting diode is disposed on the printed circuit board. The liquid crystal display module also includes a main frame surrounding the liquid crystal display panel and a top frame surrounding a front edge of the liquid crystal display panel and combined with the bottom frame through the main frame.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: August 2, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: Seung-Hoon Yang
  • Publication number: 20110164204
    Abstract: A backlight device for a liquid crystal display includes a substrate, and a plurality of white, red, green, and blue light emitting diodes arranged on the substrate.
    Type: Application
    Filed: March 16, 2011
    Publication date: July 7, 2011
    Inventors: Jae Bum Kim, Seung Hoon Yang
  • Patent number: 7932966
    Abstract: A backlight device for a liquid crystal display includes a substrate, and a plurality of white, red, green, and blue light emitting diodes arranged on the substrate.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: April 26, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Bum Kim, Seung Hoon Yang
  • Publication number: 20100309410
    Abstract: A backlight unit adapted to enhance brightness and reduce manufacturing time and costs is disclosed. The backlight unit includes a bottom cover with an opened upper surface, a plurality of light emission diodes arranged on an inner edge of the bottom cover, a light guide plate disposed parallel to the plurality of light emission diodes, and a diffusion sheet disposed on the light guide plate. The diffusion sheet is provided to have an overlapped area with a support main which is combined with the bottom cover. Also, a reflection material layer is formed on an upper surface of the diffusion sheet corresponding to the overlapped area.
    Type: Application
    Filed: November 25, 2009
    Publication date: December 9, 2010
    Inventors: Seung Hoon Yang, Yeoun Jei Jung
  • Publication number: 20100242518
    Abstract: The present invention relates to an indoor unit of an air conditioner. The present invention provides an indoor unit (1000) of an air conditioner, having a picture frame panel (40), the picture frame panel (40) including a picture frame base (42) mounted to a front of the indoor unit (1000), a deco-frame (44) rotatably mounted to a front of the picture frame base (42), and a supporting unit (300) for supporting the deco-frame (44) in a case the deco-frame (44) rotates with respect to the picture frame base (42), thereby permitting easy replacement of the exhibit being mounted on the picture frame base (42) by setting a rotated state of the deco-frame (44).
    Type: Application
    Filed: November 28, 2006
    Publication date: September 30, 2010
    Applicant: LG ELECTRONICS INC.
    Inventor: Seung Hoon Yang
  • Publication number: 20100125391
    Abstract: Disclosed herein is a method for compensating steering of a motor drive power steering (MDPS) system. In this method, the MDPS system determines a slip of a vehicle, calculates a steering compensation value and controls a gain based on moment input from an electronic stability program (ESP) system under coordinate control between the MDPS system and the ESP system, so that stability of the vehicle can be enhanced by reducing heterogeneous steering and preventing over steering.
    Type: Application
    Filed: December 30, 2008
    Publication date: May 20, 2010
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventor: Seung Hoon YANG
  • Patent number: 7712939
    Abstract: A backlight unit is adapted for increasing the brightness uniformity and life span of a light source, and a liquid crystal module using the same. A light unit includes a light source; a temperature sensor for sensing a temperature of the light source; a peltier device for increasing and decreasing the temperature of the light source; and a controller for controlling the peltier device in correspondence to an output of the temperature sensor.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: May 11, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Seung Hoon Yang
  • Publication number: 20100053503
    Abstract: A backlight unit for a liquid crystal display panel includes a lamp, a plurality of optical sheets, a light guide that guides light from the lamp toward the optical sheets, and a reflector facing a rear surface of the light guide. The light guide includes a first plurality of geometric shapes at the rear surface thereof that substantially directs the light incident on the light guide toward the optical sheets, and a second plurality of geometric shapes at a peripheral portion of the rear surface thereof to prevent the reflector from sticking to the light guide, a density of the second plurality of geometric shapes is less than the density of the first plurality of geometric shapes.
    Type: Application
    Filed: December 24, 2008
    Publication date: March 4, 2010
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Sun-Hee Lee, Seung-Hoon Yang
  • Publication number: 20090316104
    Abstract: A liquid crystal display module includes a liquid crystal display panel and a backlight unit under the liquid crystal display panel. The backlight unit includes at least one light emitting diode. The liquid crystal display module further comprises a bottom frame surrounding the backlight unit. The bottom frame comprises a printed circuit board and the at least one light emitting diode is disposed on the printed circuit board. The liquid crystal display module also includes a main frame surrounding the liquid crystal display panel and a top frame surrounding a front edge of the liquid crystal display panel and combined with the bottom frame through the main frame.
    Type: Application
    Filed: August 27, 2009
    Publication date: December 24, 2009
    Applicant: LG Display Co., Ltd.
    Inventor: Seung-Hoon Yang
  • Patent number: 7599020
    Abstract: A liquid crystal display module includes a liquid crystal display panel and a backlight unit under the liquid crystal display panel. The backlight unit includes at least one light emitting diode. The liquid crystal display module further comprises a bottom frame surrounding the backlight unit. The bottom frame comprises a printed circuit board and the at least one light emitting diode is disposed on the printed circuit board. The liquid crystal display module also includes a main frame surrounding the liquid crystal display panel and a top frame surrounding a front edge of the liquid crystal display panel and combined with the bottom frame through the main frame.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: October 6, 2009
    Assignee: LG. Display Co., Ltd.
    Inventor: Seung-Hoon Yang
  • Patent number: 7553057
    Abstract: A backlight unit for a display device includes a light guide plate formed with a first prism pattern on one of top and bottom surfaces, a lamp including first and second lamp portions facing first and second side surfaces, respectively, of the light guide plate, and a reflector facing the bottom surface of the light guide plate, wherein the first prism pattern is formed in a direction of crossing at least one of the first and second lamp portions.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: June 30, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Ho Hwang, Seung-Hoon Yang
  • Publication number: 20090059130
    Abstract: A backlight device for a liquid crystal display includes a substrate, and a plurality of white, red, green, and blue light emitting diodes arranged on the substrate.
    Type: Application
    Filed: October 21, 2008
    Publication date: March 5, 2009
    Inventors: Jae Bum KIM, Seung Hoon YANG