Patents by Inventor Chang Gone Kim

Chang Gone Kim 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: 9872046
    Abstract: Discussed is an apparatus for recovering a motion vector to perform error concealment on received video stream, including: a first selecting unit selecting a first motion vector from a first slice that is above a lost slice, and selecting a second motion vector from a second slice that is below the lost slice; a second selecting unit determining at least one first orthogonal motion vector that is orthogonal to the first motion vector, and determining at least one second orthogonal motion vector that is orthogonal to the second motion vector; and a recovering unit computing a lost motion vector, comprised in the lost slice, using a weighted average of valid motion vectors, wherein the valid motion vectors include at least one of the first motion vector, the second motion vector, the first orthogonal motion vector, and the second orthogonal motion vector.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: January 16, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kevin Gatimu, Ben Lee, Tae Wook Lee, Chang Gone Kim
  • Patent number: 9380351
    Abstract: Discussed is an apparatus for transmitting encoded video stream that may include an encoder configured to encode a video stream using a predetermined compression standard; a parser configured to subdivide the encoded video stream into a plurality of sub-streams and parse the sub-streams; a MUX configured to segregate a first data which is NAL unit having SPS, PPS, or slice header and a second data which is NAL unit having slice data from the parsed sub-stream; a first packet generator configured to generate a TCP packet using the first data by the sub-stream and transmit the TCP packet through a TCP tunnel; and a second packet generator configured to generate a UDP packet using the second data by the sub-stream and transmit the UDP packet through a UDP tunnel.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: June 28, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Jing Zhao, Ben Lee, Tae Wook Lee, Chang Gone Kim
  • Patent number: 9231993
    Abstract: Discussed is an apparatus for transmitting an encoded video stream, comprising: a slice generating unit that divides a frame, comprised in a video stream, into at least one or more slice; and a transmitting unit transmitting the slice in units of a packet within a slice deadline, which is a time limit required for transmission of the slice, the transmitting unit that preferentially transmits a header packet that contain a slice header information over other packets, and the slice header that comprises of information necessary for reconstructing the slice, wherein the transmitting unit comprises: a packet transmitter that retransmits the packet when the packet fails to be transmitted within the predetermined retry limit; and a header protector performing control for the header packet to be repeatedly transmitted within the slice deadline even when number of retransmissions of the header packet exceeds the predetermined retry limit.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: January 5, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Mohammed Sinky, Ben Lee, Chang Gone Kim, Tae Wook Lee
  • Patent number: 9117397
    Abstract: Provided are a timing controller for converting RGB data to WRGB data, a driving method thereof, and an LCD device using the same. The timing controller according to an embodiment includes a reception unit to receive input RGB data from an external device; a converter to convert the input RGB data into input WRGB data composed of W, R, G and B data; an aligner to convert one of the W, R, G, and B data into 0 to generate conversion WRGB data, the conversion WRGB data having bits less than the total number of bits composing the W, R, G, and B data; a controller to transfer the conversion WRGB data to an external memory; and a re-aligner to convert the conversion WRGB data received from the external memory into digital WRGB data corresponding to the input WRGB data, and to output the digital WRGB data.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: August 25, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Su Hyuk Jang, Chang Gone Kim
  • Publication number: 20150207834
    Abstract: Discussed is an apparatus for transmitting encoded video stream that may include an encoder configured to encode a video stream using a predetermined compression standard; a parser configured to subdivide the encoded video stream into a plurality of sub-streams and parse the sub-streams; a MUX configured to segregate a first data which is NAL unit having SPS, PPS, or slice header and a second data which is NAL unit having slice data from the parsed sub-stream; a first packet generator configured to generate a TCP packet using the first data by the sub-stream and transmit the TCP packet through a TCP tunnel; and a second packet generator configured to generate a UDP packet using the second data by the sub-stream and transmit the UDP packet through a UDP tunnel.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 23, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jing ZHAO, Ben LEE, Tae Wook LEE, Chang Gone KIM
  • Publication number: 20150071355
    Abstract: Discussed is an apparatus for recovering a motion vector to perform error concealment on received video stream, including: a first selecting unit selecting a first motion vector from a first slice that is above a lost slice, and selecting a second motion vector from a second slice that is below the lost slice; a second selecting unit determining at least one first orthogonal motion vector that is orthogonal to the first motion vector, and determining at least one second orthogonal motion vector that is orthogonal to the second motion vector; and a recovering unit computing a lost motion vector, comprised in the lost slice, using a weighted average of valid motion vectors, wherein the valid motion vectors include at least one of the first motion vector, the second motion vector, the first orthogonal motion vector, and the second orthogonal motion vector.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: LG Display Co., Ltd.
    Inventors: Kevin GATIMU, Ben LEE, Tae Wook LEE, Chang Gone KIM
  • Publication number: 20150071284
    Abstract: Discussed is an apparatus for transmitting an encoded video stream, comprising: a slice generating unit that divides a frame, comprised in a video stream, into at least one or more slice; and a transmitting unit transmitting the slice in units of a packet within a slice deadline, which is a time limit required for transmission of the slice, the transmitting unit that preferentially transmits a header packet that contain a slice header information over other packets, and the slice header that comprises of information necessary for reconstructing the slice, wherein the transmitting unit comprises: a packet transmitter that retransmits the packet when the packet fails to be transmitted within the predetermined retry limit; and a header protector performing control for the header packet to be repeatedly transmitted within the slice deadline even when number of retransmissions of the header packet exceeds the predetermined retry limit.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Inventors: Mohammed SINKY, Ben LEE, Chang Gone KIM, Tae Wook LEE
  • Publication number: 20140085319
    Abstract: Provided are a timing controller for converting RGB data to WRGB data, a driving method thereof, and an LCD device using the same. The timing controller according to an embodiment includes a reception unit to receive input RGB data from an external device; a converter to convert the input RGB data into input WRGB data composed of W, R, G and B data; an aligner to convert one of the W, R, G, and B data into 0 to generate conversion WRGB data, the conversion WRGB data having bits less than the total number of bits composing the W, R, G, and B data; a controller to transfer the conversion WRGB data to an external memory; and a re-aligner to convert the conversion WRGB data received from the external memory into digital WRGB data corresponding to the input WRGB data, and to output the digital WRGB data.
    Type: Application
    Filed: December 26, 2012
    Publication date: March 27, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Su Hyuk JANG, Chang Gone KIM
  • Patent number: 8487859
    Abstract: The present invention discloses a data driving apparatus and method for a liquid crystal display device having a first multiplexer part performing a time-division on inputted digital pixel data, a digital-analog converter part converting the time-divided digital pixel data from the first multiplexer part to analog pixel signals, a demultiplexer part supplying the analog pixel signals from the digital-analog converter part to a plurality of output channels, and an output part sampling and holding first received analog pixel signals from the demultiplexer part and holding second received analog pixel signals and simultaneously outputting both the first and second received pixel signals to corresponding data lines.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: July 16, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Seok Su Kim, Chang Gone Kim, Gi Suck Kwon, Seok Woo Lee
  • Publication number: 20120147063
    Abstract: Disclosed is a display device which facilitates to display an image with the same color as an external border (external case) of a liquid crystal display (LCD) device, or to display an image satisfying a user's taste during a no-signal period, and a method for driving the display device, wherein the display device comprises a video controller which outputs interior data in accordance with a preset mode during a no-signal period; a timing controller which arranges the interior data, supplied from the video controller, in a frame unit, and outputs the arranged interior data; a data driver which converts the interior data of the frame unit, supplied from the timing controller, into analog video data, and outputs the analog video data; and a liquid crystal display panel which displays an image by the use of analog video data based on the interior data during the no-signal period.
    Type: Application
    Filed: November 22, 2011
    Publication date: June 14, 2012
    Inventors: Tae Wook Lee, Chang Gone Kim
  • Patent number: 8134580
    Abstract: A method of driving a liquid crystal display device includes multiplying a frame frequency of an inputted current frame to generate a multiplied odd-numbered frame and a multiplied even-numbered frame; determining whether said current frame is a still image frame or a dynamic image frame; detecting an edge area at which a motion blur occurs from the multiplied odd-numbered frame and the multiplied even-numbered frame; converting gray level values of pixels positioned at the detected edge area at the multiplied odd-numbered frame and the multiplied even-numbered frame; and continuously outputting the multiplied odd-numbered still image frame and the multiplied even-numbered still image frame or continuously outputting the multiplied odd-numbered dynamic image frame and the multiplied even-numbered dynamic image frame having the converted gray level values in accordance with the determined result. A liquid crystal display device is also disclosed.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: March 13, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Chang Gone Kim, Sung Jo Koo, Myung Kook Moon, Jin Ha Lee
  • Publication number: 20100156961
    Abstract: A method of driving a liquid crystal display device includes multiplying a frame frequency of an inputted current frame to generate a multiplied odd-numbered frame and a multiplied even-numbered frame; determining whether said current frame is a still image frame or a dynamic image frame; detecting an edge area at which a motion blur occurs from the multiplied odd-numbered frame and the multiplied even-numbered frame; converting gray level values of pixels positioned at the detected edge area at the multiplied odd-numbered frame and the multiplied even-numbered frame; and continuously outputting the multiplied odd-numbered still image frame and the multiplied even-numbered still image frame or continuously outputting the multiplied odd-numbered dynamic image frame and the multiplied even-numbered dynamic image frame having the converted gray level values in accordance with the determined result. A liquid crystal display device is also disclosed.
    Type: Application
    Filed: March 3, 2010
    Publication date: June 24, 2010
    Inventors: Chang Gone Kim, Sung Jo Koo, Myung Kook Moon, Jin Ha Lee
  • Patent number: 7701429
    Abstract: A method of driving a liquid crystal display device includes multiplying a frame frequency of an inputted current frame to generate a multiplied odd-numbered frame and a multiplied even-numbered frame; determining whether said current frame is a still image frame or a dynamic image frame; detecting an edge area at which a motion blur occurs from the multiplied odd-numbered frame and the multiplied even-numbered frame; converting gray level values of pixels positioned at the detected edge area at the multiplied odd-numbered frame and the multiplied even-numbered frame; and continuously outputting the multiplied odd-numbered still image frame and the multiplied even-numbered still image frame or continuously outputting the multiplied odd-numbered dynamic image frame and the multiplied even-numbered dynamic image frame having the converted gray level values in accordance with the determined result. A liquid crystal display device is also disclosed.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: April 20, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Chang Gone Kim, Sung Jo Koo, Myung Kook Moon, Jin Ha Lee
  • Patent number: 7570241
    Abstract: A liquid crystal display device includes a common voltage switching device selectively supplying one of first and second common voltages, a thin film transistor connected to a gate line and a data line, a liquid crystal capacitor connected to the thin film transistor and the common voltage switching device.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: August 4, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Chang-Gone Kim, Jong-Ki Ahn, Pil-Sung Kang
  • Publication number: 20070296668
    Abstract: A method of driving a liquid crystal display device includes multiplying a frame frequency of an inputted current frame to generate a multiplied odd-numbered frame and a multiplied even-numbered frame; determining whether said current frame is a still image frame or a dynamic image frame; detecting an edge area at which a motion blur occurs from the multiplied odd-numbered frame and the multiplied even-numbered frame; converting gray level values of pixels positioned at the detected edge area at the multiplied odd-numbered frame and the multiplied even-numbered frame; and continuously outputting the multiplied odd-numbered still image frame and the multiplied even-numbered still image frame or continuously outputting the multiplied odd-numbered dynamic image frame and the multiplied even-numbered dynamic image frame having the converted gray level values in accordance with the determined result. A liquid crystal display device is also disclosed.
    Type: Application
    Filed: December 28, 2006
    Publication date: December 27, 2007
    Inventors: Chang Gone Kim, Sung Jo Koo, Myung Kook Moon, Jin Ha Lee
  • Patent number: 7015904
    Abstract: A power sequence apparatus and a driving method that renders the control of a power sequence easy and prevents malfunction in a driver IC. The power sequence apparatus includes a power supply for simultaneously generating a gate high voltage and a gate low voltage, a gate driving circuit sequentially supplying the gate high voltage and then the gate low voltage to gate lines, and a voltage controller disposed between the power supply and the gate driving circuit, and processing the gate high voltage using multiple switching circuits to supply the gate high voltage to the gate driving circuit after the gate low voltage is supplied to the gate driving circuit.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: March 21, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Chang Gone Kim
  • Publication number: 20050088392
    Abstract: A liquid crystal display device includes a common voltage switching device selectively supplying one of first and second common voltages, a thin film transistor connected to a gate line and a data line, a liquid crystal capacitor connected to the thin film transistor and the common voltage switching device.
    Type: Application
    Filed: June 28, 2004
    Publication date: April 28, 2005
    Inventors: Chang-Gone Kim, Jong-Ki Ahn, Pil-Sung Kang
  • Patent number: 6867759
    Abstract: A liquid crystal display device for restraining a generation of transient current is disclosed. In the device, a line memory divides a data for at least one line inputted from the exterior thereof into a plurality of groups to store the divided data therein and outputs the data at a desired unit from each of the groups. A driving circuit includes n driver integrated circuits (wherein n is an integer) that are connected to the line memory and a liquid crystal display panel to drive the liquid crystal display panel in response to the data outputted from the line memory. A timing controller is connected to the line memory and the driving circuit to receive a data clock inputted from the exterior thereof for outputting the data from the plurality of groups of said line memory to the driving circuit every period of the data clock in response to a time corresponding to the number of said groups.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: March 15, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Jong Sang Baek, Chang Gone Kim
  • Publication number: 20040125067
    Abstract: The present invention discloses a data driving apparatus and method for a liquid crystal display device having a first multiplexer part performing a time-division on inputted digital pixel data, a digital-analog converter part converting the time-divided digital pixel data from the first multiplexer part to analog pixel signals, a demultiplexer part supplying the analog pixel signals from the digital-analog converter part to a plurality of output channels, and an output part sampling and holding first received analog pixel signals from the demultiplexer part and holding second received analog pixel signals and simultaneously outputting both the first and second received pixel signals to corresponding data lines.
    Type: Application
    Filed: September 22, 2003
    Publication date: July 1, 2004
    Applicant: LG. Philips LCD Co., Ltd.
    Inventors: Seok Su Kim, Chang Gone Kim, Gi Suck Kwon, Seok Woo Lee
  • Publication number: 20030034965
    Abstract: A power sequence apparatus and a driving method that renders the control of a power sequence easy and prevents malfunction in a driver IC. The power sequence apparatus includes a power supply for simultaneously generating a gate high voltage and a gate low voltage, a gate driving circuit sequentially supplying the gate high voltage and then the gate low voltage to gate lines, and a voltage controller disposed between the power supply and the gate driving circuit, and processing the gate high voltage using multiple switching circuits to supply the gate high voltage to the gate driving circuit after the gate low voltage is supplied to the gate driving circuit.
    Type: Application
    Filed: December 26, 2001
    Publication date: February 20, 2003
    Inventor: Chang Gone Kim