Patents by Inventor Jeong-hwan Shin

Jeong-hwan 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).

  • Patent number: 9564924
    Abstract: Provided is an apparatus for designing a quantum code, which includes an analyzing unit for analyzing at least one quantum error generated in a quantum error channel as at least one binary error by using a standard form codeword stabilized quantum (CWS) code, a code generating unit for generating a binary error-correcting code which corrects the at least one binary error, a word operator generating unit for generating at least one word operator of the CWS code by using the at least one binary error-correcting code, and a codeword generating unit for generating at least one codeword including at least one entangled qubit (ebit) by using the at least one word operator.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: February 7, 2017
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Jun Heo, Jeong Hwan Shin
  • Patent number: 9368060
    Abstract: A power system for an organic light emitting diode (OLED) display includes a power supplier and a power source controller. The power supplier respectively supplies a first power source voltage and a second power source voltage to first and second power source voltage application lines. The power source controller calculates a reference power source voltage corresponding to a maximum average grayscale using a distribution for each grayscale of first to third image data, models each voltage drop of the first and second power source voltages for first to third subpixels, and reflects the voltage drop to the reference power source voltage to change the second power source voltage.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se-Byung Chae, Wook Lee, Jeong-Hwan Shin
  • Patent number: 9311850
    Abstract: A pixel capable of minimizing power consumption is disclosed. In one embodiment, the pixel includes an organic light emitting diode (OLED), a first transistor for controlling an amount of current supplied from a first power supply to the OLED to correspond to a voltage applied to a first node, and a second transistor and a third transistor coupled between a second node electrically coupled to a data line and the first node in parallel in a period where a scan signal is supplied.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: April 12, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Wook Lee, Jeong-Hwan Shin, Se-Byung Chae
  • Publication number: 20160086537
    Abstract: Provided are an organic light-emitting display comprising: a display panel which comprises a plurality of pixels, each of the pixels having an organic light-emitting diode (OLED); a sensor configured to detect degradation data indicating a degree of degradation of the OLED of each of the pixels and configured to calculate a degradation data difference between two or more adjacent pixels among the pixels; and a controller configured to set a compensation area utilizing the degradation data difference and configured to generate compensated image data by compensating in the compensation area in input image data.
    Type: Application
    Filed: March 4, 2015
    Publication date: March 24, 2016
    Inventor: Jeong Hwan Shin
  • Publication number: 20160063950
    Abstract: A display device includes: a plurality of pixels; a plurality of data lines coupled to the pixels and grouped into a plurality of groups; a plurality of channels corresponding to the plurality of groups, each of the channels being configured to sense a current flowing to a data line of a corresponding group from among the data lines to output a code value; and a controller configured to calibrate a deviation of a gain and an offset of the channels based on the code value of each of the channels.
    Type: Application
    Filed: March 11, 2015
    Publication date: March 3, 2016
    Inventor: Jeong-Hwan Shin
  • Patent number: 9241387
    Abstract: There is provided an organic light emitting display device capable of reducing power consumption by adjusting a voltage according to an input image and deterioration of the organic light emitting display device and a method of driving the same.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: January 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeong-Hwan Shin, Wook Lee, Se-Byung Chae
  • Publication number: 20150019930
    Abstract: Provided is an apparatus for designing a quantum code, which includes an analyzing unit for analyzing at least one quantum error generated in a quantum error channel as at least one binary error by using a standard form codeword stabilized quantum (CWS) code, a code generating unit for generating a binary error-correcting code which corrects the at least one binary error, a word operator generating unit for generating at least one word operator of the CWS code by using the at least one binary error-correcting code, and a codeword generating unit for generating at least one codeword including at least one entangled qubit (ebit) by using the at least one word operator.
    Type: Application
    Filed: February 21, 2012
    Publication date: January 15, 2015
    Applicant: Korea University Research and Business Foundation
    Inventors: Jun Heo, Jeong Hwan Shin
  • Publication number: 20140240305
    Abstract: A power system for an organic light emitting diode (OLED) display includes a power supplier and a power source controller. The power supplier respectively supplies a first power source voltage and a second power source voltage to first and second power source voltage application lines. The power source controller calculates a reference power source voltage corresponding to a maximum average grayscale using a distribution for each grayscale of first to third image data, models each voltage drop of the first and second power source voltages for first to third subpixels, and reflects the voltage drop to the reference power source voltage to change the second power source voltage.
    Type: Application
    Filed: September 30, 2013
    Publication date: August 28, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se-Byung CHAE, Wook LEE, Jeong-Hwan SHIN
  • Publication number: 20140191663
    Abstract: There is provided an organic light emitting display device capable of reducing power consumption by adjusting a voltage according to an input image and deterioration of the organic light emitting display device and a method of driving the same.
    Type: Application
    Filed: September 20, 2013
    Publication date: July 10, 2014
    Inventors: Jeong-Hwan Shin, Wook Lee, Se-Byung Chae
  • Publication number: 20140022226
    Abstract: A pixel capable of minimizing power consumption is disclosed. In one embodiment, the pixel includes an organic light emitting diode (OLED), a first transistor for controlling an amount of current supplied from a first power supply to the OLED to correspond to a voltage applied to a first node, and a second transistor and a third transistor coupled between a second node electrically coupled to a data line and the first node in parallel in a period where a scan signal is supplied.
    Type: Application
    Filed: November 1, 2012
    Publication date: January 23, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Wook Lee, Jeong-Hwan Shin, Se-Byung Chae
  • Patent number: 8305348
    Abstract: A display device includes a display panel, an integral type printed circuit board electrically connecting the display panel and a signal transmission member formed on a rear side of the integral type printed circuit board to transmit the input signal. The integral type printed circuit board comprises a driving circuit member applying a driving signal to the display panel, and an input circuit member integrally formed with the driving circuit member to generate an input signal.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: November 6, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jeong-Hwan Shin
  • Patent number: 8243002
    Abstract: In a display device, a first frame of input image signals is received by a signal controller, stored in a memory, and applied to rows of pixels while a gate driver scans a gate-on voltage to a gate line in a first mode to select a row of pixels, one row at a time. When a gate driver controller detects that a second frame of image signals is being received by the signal controller, the gate driver controller halts the operation of the gate driver until the second frame of input image signals has all been received by the signal controller and until a scan start signal is detected by the gate driver controller.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: August 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-Hwan Shin, Jin-Oh Kwag, Young-Joo Park
  • Patent number: 7961356
    Abstract: Embodiments of image processing apparatuses and methods according to the present general inventive concept may generate and/or store shading profile information based on an image characteristic relative to a prescribed condition of that characteristic such as according to brightness equal to or above a prescribed (e.g., minimum or lower) brightness level or the like. An embodiment of an image processing apparatus according to the present general inventive concept may include a scanning unit to scan an inputted image and an image processor to process the inputted image based on shading profile information determined according to brightness equal to or above a minimum brightness level.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: June 14, 2011
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventor: Jeong-hwan Shin
  • Publication number: 20100098329
    Abstract: An image processing method of converting a gray image into a halftone image, and an image forming apparatus using the same, the image processing method including: calculating critical values of a halftone table in positions of the halftone table from an initial pattern that has a smaller storage size than that of the halftone table, the halftone table corresponding to at least one pixel of the gray image; and creating the halftone image by applying a halftone process to pixels of the gray image on the basis of the calculated critical values of the halftone table. Accordingly, a memory used to store a halftone table is decreased, thereby reducing a cost of the memory, minimizing restriction on design, and speeding a halftone process up.
    Type: Application
    Filed: July 14, 2009
    Publication date: April 22, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Tae-hong JANG, Jeong-hwan SHIN
  • Publication number: 20090122034
    Abstract: In a display device, a first frame of input image signals is received by a signal controller, stored in a memory, and applied to rows of pixels while a gate driver scans a gate-on voltage to a gate line in a first mode to select a row of pixels, one row at a time. When a gate driver controller detects that a second frame of image signals is being received by the signal controller, the gate driver controller halts the operation of the gate driver until the second frame of input image signals has all been received by the signal controller and until a scan start signal is detected by the gate driver controller.
    Type: Application
    Filed: July 22, 2008
    Publication date: May 14, 2009
    Inventors: Jeong-Hwan Shin, Jin-Oh Kwag, Young-Joo Park
  • Publication number: 20080309990
    Abstract: Embodiments of image processing apparatuses and methods according to the present general inventive concept may generate and/or store shading profile information based on an image characteristic relative to a prescribed condition of that characteristic such as according to brightness equal to or above a prescribed (e.g., minimum or lower) brightness level or the like. An embodiment of an image processing apparatus according to the present general inventive concept may include a scanning unit to scan an inputted image and an image processor to process the inputted image based on shading profile information determined according to brightness equal to or above a minimum brightness level.
    Type: Application
    Filed: January 15, 2008
    Publication date: December 18, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Jeong-hwan SHIN
  • Publication number: 20080030475
    Abstract: A display device includes a display panel, an integral type printed circuit board electrically connecting the display panel and a signal transmission member formed on a rear side of the integral type printed circuit board to transmit the input signal. The integral type printed circuit board comprises a driving circuit member applying a driving signal to the display panel, and an input circuit member integrally formed with the driving circuit member to generate an input signal.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 7, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Jeong-Hwan Shin
  • Publication number: 20060146006
    Abstract: A liquid crystal display includes a first panel unit; a second panel unit; a first flexible printed circuit film (FPC) having an opening exposing the second panel unit; a light source unit providing the first and the second panel units and including a plurality of lamps; and a current controller controlling a current applied to the light source unit and including a capacitoritor is less than 100 nF.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 6, 2006
    Inventors: Yong-Hui Lee, Jin-Hee Park, Jeong-Hwan Shin, Jae-Myong Yoo, Young Kim, Young-Joo Park, Jin-Oh Kwan