Patents by Inventor Ji-An Gong

Ji-An Gong 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: 20140313245
    Abstract: A display device includes a display panel and a timing controller. The display panel includes a plurality of pixels, and the timing controller determines a driving method that includes a first sub-frame arrangement method and a second sub-frame arrangement method. An arrangement of weight values of a plurality of sub-frames of the second sub-frame arrangement method is given in an opposite order from an arrangement of weight values of a plurality of sub-frames of the first sub-frame arrangement method. The timing controller applies the first sub-frame arrangement method to a first pixel among the pixels, and applies the second sub-frame arrangement method to a second pixel that is disposed next to the first pixel.
    Type: Application
    Filed: January 22, 2014
    Publication date: October 23, 2014
    Inventors: Jin-Woo Park, Sang-Jin Pak, Ji-Gong Lee, Sang-Kwon Ha, Su-min Yang
  • Publication number: 20140292823
    Abstract: An organic light emitting display includes: a display region including: a plurality of data lines, a plurality of scan lines, and a plurality of pixels coupled to corresponding ones of the data lines and corresponding ones of the scan lines; a timing controller configured to: divide input data into frames, select a set of a plurality of subfields having different time-weighted values for a plurality of gray levels of the input data to generate conversion data, and convert the input data into image data based on the conversion data; a scan driver configured to supply a plurality of scan signals to the scan lines; and a data driver configured to generate a plurality of data signals using the image data and to supply the data signals to the data lines.
    Type: Application
    Filed: August 20, 2013
    Publication date: October 2, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ji-Gong Lee, Sang-Jin Pak, Jin-Woo Park
  • Publication number: 20140184533
    Abstract: A liquid crystal display integrated with a touch sensor includes a first substrate including pixels connected to gate wires and data wires, a second substrate positioned to face the first substrate, a plurality of common electrodes corresponding to the pixels, a plurality of sensing electrodes on the second substrate, a liquid crystal layer between the first substrate and the second substrate, a gate drive unit driven corresponding to a gate control signal and configured to supply a gate signal to the pixels through the gate wires, a common electrode drive unit configured to supply a touch driving signal to the common electrodes during a touch driving period, and a control unit configured to supply a gate control signal synchronized with the touch driving signal to the gate drive unit.
    Type: Application
    Filed: September 11, 2013
    Publication date: July 3, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jin-Woo PARK, Sang-Jin PAK, Sang-Kwon HA, Ji-Gong LEE, Hideo YOSHIMURA
  • Patent number: 8749505
    Abstract: A touch screen panel includes a display unit including a timing controller for receiving a vertical synchronizing signal and a horizontal synchronizing signal to display an image, a touch sensing unit including driving electrodes, a control signal generator for generating a control signal from the vertical synchronizing signal and the horizontal synchronizing signal, and a touch controller for supplying a driving signal to the touch sensing unit in response to the control signal from the control signal generator.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: June 10, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Kwon Ha, Joo-Hyung Lee, Jin-Woo Park, Sang-Jin Pak, Ji-Gong Lee, Hideo Yoshimura
  • Publication number: 20140152716
    Abstract: A display device and a driving method thereof for reducing power consumption. The display device includes a plurality of pixels positioned at intersection portions of gate lines and data lines; a gate driver selectively driving the gate lines; a data driver supplying, to the data lines, data corresponding to the gate line selected from the gate lines; and a timing controller controlling the gate drive and the data driver. In the display device, the timing controller includes an order determination unit that compares data for each gate line and determines a driving order of the gate lines.
    Type: Application
    Filed: June 13, 2013
    Publication date: June 5, 2014
    Inventors: Ji-Gong Lee, Hideo Yoshimura, Sang-Jin Pak, Sang-Kwon Ha
  • Publication number: 20140085322
    Abstract: A display device includes a driver connected to a display panel and transmitting scan signals or data signals to the display panel, a frame memory connected to the driver, storing image data and transmitting at least some of the image data to the driver, and a controller connected to the driver and the frame memory, generating a control signal and transmitting the control signal to the driver or the frame memory, wherein each of the sub-fields includes an address period in which the scan signals are transmitted to the respective pixel rows, the controller transmits the control signal to the driver to transmit the scan signals to the pixel rows during a current frame such that the scan signals corresponding to the current frame are transmitted after, among the image data corresponding to the current frame, the image data corresponding to the pixel rows are stored in the frame memory.
    Type: Application
    Filed: March 14, 2013
    Publication date: March 27, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Gong Lee, Sang Jin Pak, Hideo Yoshimura, Sang Kwon Ha
  • Publication number: 20130215049
    Abstract: A method of operating a touch panel including a plurality of driving lines and a plurality of sensing lines includes performing a first limited scan by activating only a first portion of the plurality of driving lines and only a first portion of the plurality of sensing lines, such that a first coarse position of a first touch by a user is detected, and performing a first local scan by activating only driving lines and sensing lines adjacent to the detected first coarse position of the first touch, such that a first fine position of the first touch by the user is detected.
    Type: Application
    Filed: November 21, 2012
    Publication date: August 22, 2013
    Inventor: Ji-Gong LEE
  • Publication number: 20120313866
    Abstract: A touch screen panel is disclosed. The touch screen panel includes a pixel unit, a touch sensing unit, and a data driver configured to provide data voltages to the pixel unit and to provide driving signals to the touch sensing unit.
    Type: Application
    Filed: April 24, 2012
    Publication date: December 13, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Sang-Kwon Ha, Joo-Hyung Lee, Sang-Jin Pak, Ji-Gong Lee, Hee-Chul Hwang
  • Publication number: 20120206383
    Abstract: A touch screen panel includes a display unit including a timing controller for receiving a vertical synchronizing signal and a horizontal synchronizing signal to display an image, a touch sensing unit including driving electrodes, a control signal generator for generating a control signal from the vertical synchronizing signal and the horizontal synchronizing signal, and a touch controller for supplying a driving signal to the touch sensing unit in response to the control signal from the control signal generator.
    Type: Application
    Filed: October 28, 2011
    Publication date: August 16, 2012
    Inventors: Sang-Kwon HA, Joo-Hyung Lee, Jin-Woo Park, Sang-Jin Pak, Ji-Gong Lee, Hideo Yoshimura
  • Publication number: 20120105752
    Abstract: A liquid crystal display (LCD) with an integrated touch screen panel includes a plurality of pixels connected to a plurality of data lines and a plurality of gate lines, the gate lines being divided into a plurality of groups, a plurality of sensing electrodes, a plurality of common electrodes divided into a plurality of groups, a common electrode driver configured to simultaneously supply a driving signal to common electrodes within each group of the plurality of groups of the common electrodes, and to sequentially supply the driving signal to the plurality of groups of the common electrodes, and a gate driver configured to sequentially supply a gate signal to gate lines within each of the plurality of group of the gate lines.
    Type: Application
    Filed: September 21, 2011
    Publication date: May 3, 2012
    Inventors: Jin-Woo Park, Sang-Jin Pak, Jin-Hee Lee, Sang-Kwon Ha, Ji-Gong Lee, Hideo Yoshimura, Cheol-Min Kim, Joo-Hyung Lee
  • Patent number: 6459942
    Abstract: A speakerphone of a system with a digital signal processor, such as a computer, uses a filter set or network to provide acoustic coupling loss at a microphone to offset acoustic coupling gain produced by sound reflections resulting from various conditions in the system. The filter network processes an acoustic signal before the signal is provided to a digital signal processor to eliminate acoustic coupling gain that the digital signal processor is unable to cancel or offset. The filter network detects when the acoustic coupling gain in the acoustic signal at the microphone exceeds the maximum amount of acoustic coupling loss supplied by the digital signal processor. Alternatively, if acoustic coupling gain is desirable at the frequency location of the anomaly caused by the sound reflections, the filter network is used to boost the acoustic coupling gain produced by the anomaly.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: October 1, 2002
    Assignee: Compaq Information Technologies Group, L.P.
    Inventors: Mitchell A. Markow, Jeremy Ford, Ji-An Gong
  • Patent number: 6359994
    Abstract: An expansion base with a rearward-emitting expansion speaker for emitting low frequency audio and providing surround sound capability. The frequency response of the expansion speaker includes subwoofer frequencies, and is also extended to 600 Hz or higher, to enhance surround sound and spatial impression effects.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: March 19, 2002
    Assignee: Compaq Information Technologies Group, L.P.
    Inventors: Mitchell A. Markow, Ji-An Gong
  • Patent number: 6195437
    Abstract: A method and apparatus for controlling acoustic gain during a non-speakerphone audio mode of computer system independent of acoustic gain during a speakerphone mode of the computer system is provided. The BIOS code of the computer system detects whether the computer system is in a speakerphone mode or a non-speakerphone audio mode. If the computer system is in a speakerphone mode, an upper gain limit is not applied to the microphone path of the computer system. If the computer system is in a non-speakerphone audio mode, a predetermined upper gain limit is applied to the microphone path of the computer system. The predetermined upper gain limit is preferably applied to the microphone path at either a microphone pre-amplifier or an audio mixer chip in the microphone path of the computer system.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: February 27, 2001
    Assignee: Compaq Computer Corporation
    Inventors: Mitchell A. Markow, Jeremy Ford, Ji-An Gong