Patents by Inventor Pu Kim

Pu 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: 10397607
    Abstract: A method of decoding video data includes decoding a first block of video data to produce a block of reconstructed luma residual values and a block of predicted chroma residual values, wherein the block of video data has one of a 4:2:0 or a 4:2:2 chroma sub-sampling format. The method further includes performing a color residual prediction process to reconstruct a block of chroma residual values for the first block of video data using a subset of the reconstructed luma residual values as luma predictors for the block of predicted chroma residual values.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: August 27, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Woo-Shik Kim, Wei Pu, Jianle Chen, Joel Sole Rojals, Liwei Guo, Marta Karczewicz
  • Publication number: 20070205977
    Abstract: A backlight assembly driving apparatus for a liquid crystal display device includes a light emitting diode string of serially connected light emitting diodes, and switching devices connected in parallel to and in a one-to-one correspondence with the light emitting diodes to conduct or turn off current applied to a correspondingly parallel-connected light emitting diode.
    Type: Application
    Filed: June 29, 2006
    Publication date: September 6, 2007
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventor: Pu Kim
  • Publication number: 20070081330
    Abstract: A light emitting package is disclosed that can generate a white light while controlling Red, Green and Blue light emitting diodes (“LEDs”) simultaneously. In the light emitting package, a plurality of LEDs are connected in series to one another. The plurality of LEDs are responsive to one driving voltage. Currents flowing through the plurality of LEDs are controlled by a current adjuster. Consequently, the plurality of LEDs are driven by the currents different from one another in amount.
    Type: Application
    Filed: May 17, 2006
    Publication date: April 12, 2007
    Inventors: Chang Ho Lee, In Ho Ahn, Pu Kim
  • Publication number: 20060119295
    Abstract: A method of driving a lamp of a liquid crystal display device includes generating a control signal; generating a first drive signal using the control signal; generating a second drive signal by shifting a voltage level of the first drive signal; selectively outputting one of a high potential supply voltage and a low potential supply voltage in response to the second drive signal; transforming the selectively outputted voltage; and supplying the transformed voltage to a lamp.
    Type: Application
    Filed: June 22, 2005
    Publication date: June 8, 2006
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: In Ahn, Pu Kim, Jae Song, Chang Lee
  • Publication number: 20060087262
    Abstract: An apparatus for driving a lamp comprising at least one lamp, an inverter to supply an alternating current signal, a transformer to boost the signal from the inverter and to supply the boosted signal to the lamp, and a safety circuit to detect the signal flowing to the lamp and to compare the signal with a predetermined threshold to shut down the inverter in accordance with the compared result.
    Type: Application
    Filed: June 29, 2005
    Publication date: April 27, 2006
    Inventors: Pu Kim, Jae Lee, Yong Lee
  • Publication number: 20060001386
    Abstract: A backlight unit includes: a plurality of cold cathode fluorescent lamps; a plurality of capacitors respectively connected to both ends of each of the cold cathode fluorescent lamps, the capacitors having respective impedance that are selected to allow the same amount of current to flow through each of the plurality of the cold cathode fluorescent lamps; and an inverter connected to the capacitors of the cold cathode fluorescent lamps.
    Type: Application
    Filed: June 24, 2005
    Publication date: January 5, 2006
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Pu Kim, Jae Lee, Yong Lee
  • Publication number: 20050225514
    Abstract: A backlight driving system is provided for a liquid crystal display device. The backlight driving system comprises at least one backlight having at least one terminal, an inverter and at least one transformer. The inverter supplies a voltage to the backlight and has first and second output terminals. The transformer has a first input coil and a second input coil that are connected to the first and the second output terminals of the inverter. The transformer transforms the voltage outputted from the inverter and applies a transformed voltage to the backlight via the terminal of the backlight.
    Type: Application
    Filed: September 28, 2004
    Publication date: October 13, 2005
    Inventors: In Ahn, Pu Kim, Dong Lee