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).
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Patent number: 9872046Abstract: 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: GrantFiled: September 6, 2013Date of Patent: January 16, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Kevin Gatimu, Ben Lee, Tae Wook Lee, Chang Gone Kim
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Patent number: 9380351Abstract: 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: GrantFiled: January 17, 2014Date of Patent: June 28, 2016Assignee: LG Display Co., Ltd.Inventors: Jing Zhao, Ben Lee, Tae Wook Lee, Chang Gone Kim
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Patent number: 9231993Abstract: 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: GrantFiled: September 6, 2013Date of Patent: January 5, 2016Assignee: LG Display Co., Ltd.Inventors: Mohammed Sinky, Ben Lee, Chang Gone Kim, Tae Wook Lee
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Patent number: 9117397Abstract: 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: GrantFiled: December 26, 2012Date of Patent: August 25, 2015Assignee: LG DISPLAY CO., LTD.Inventors: Su Hyuk Jang, Chang Gone Kim
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Publication number: 20150207834Abstract: 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: ApplicationFiled: January 17, 2014Publication date: July 23, 2015Applicant: LG DISPLAY CO., LTD.Inventors: Jing ZHAO, Ben LEE, Tae Wook LEE, Chang Gone KIM
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Publication number: 20150071355Abstract: 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: ApplicationFiled: September 6, 2013Publication date: March 12, 2015Applicant: LG Display Co., Ltd.Inventors: Kevin GATIMU, Ben LEE, Tae Wook LEE, Chang Gone KIM
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Publication number: 20150071284Abstract: 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: ApplicationFiled: September 6, 2013Publication date: March 12, 2015Inventors: Mohammed SINKY, Ben LEE, Chang Gone KIM, Tae Wook LEE
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Publication number: 20140085319Abstract: 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: ApplicationFiled: December 26, 2012Publication date: March 27, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Su Hyuk JANG, Chang Gone KIM
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Patent number: 8487859Abstract: 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: GrantFiled: September 22, 2003Date of Patent: July 16, 2013Assignee: LG Display Co., Ltd.Inventors: Seok Su Kim, Chang Gone Kim, Gi Suck Kwon, Seok Woo Lee
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Publication number: 20120147063Abstract: 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: ApplicationFiled: November 22, 2011Publication date: June 14, 2012Inventors: Tae Wook Lee, Chang Gone Kim
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Patent number: 8134580Abstract: 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: GrantFiled: March 3, 2010Date of Patent: March 13, 2012Assignee: LG Display Co., Ltd.Inventors: Chang Gone Kim, Sung Jo Koo, Myung Kook Moon, Jin Ha Lee
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Publication number: 20100156961Abstract: 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: ApplicationFiled: March 3, 2010Publication date: June 24, 2010Inventors: Chang Gone Kim, Sung Jo Koo, Myung Kook Moon, Jin Ha Lee
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Patent number: 7701429Abstract: 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: GrantFiled: December 28, 2006Date of Patent: April 20, 2010Assignee: LG Display Co., Ltd.Inventors: Chang Gone Kim, Sung Jo Koo, Myung Kook Moon, Jin Ha Lee
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Patent number: 7570241Abstract: 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: GrantFiled: June 28, 2004Date of Patent: August 4, 2009Assignee: LG Display Co., Ltd.Inventors: Chang-Gone Kim, Jong-Ki Ahn, Pil-Sung Kang
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Publication number: 20070296668Abstract: 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: ApplicationFiled: December 28, 2006Publication date: December 27, 2007Inventors: Chang Gone Kim, Sung Jo Koo, Myung Kook Moon, Jin Ha Lee
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Patent number: 7015904Abstract: 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: GrantFiled: December 26, 2001Date of Patent: March 21, 2006Assignee: LG.Philips LCD Co., Ltd.Inventor: Chang Gone Kim
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Publication number: 20050088392Abstract: 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: ApplicationFiled: June 28, 2004Publication date: April 28, 2005Inventors: Chang-Gone Kim, Jong-Ki Ahn, Pil-Sung Kang
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Patent number: 6867759Abstract: 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: GrantFiled: September 6, 2000Date of Patent: March 15, 2005Assignee: LG.Philips LCD Co., Ltd.Inventors: Jong Sang Baek, Chang Gone Kim
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Publication number: 20040125067Abstract: 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: ApplicationFiled: September 22, 2003Publication date: July 1, 2004Applicant: LG. Philips LCD Co., Ltd.Inventors: Seok Su Kim, Chang Gone Kim, Gi Suck Kwon, Seok Woo Lee
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Publication number: 20030034965Abstract: 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: ApplicationFiled: December 26, 2001Publication date: February 20, 2003Inventor: Chang Gone Kim