Patents by Inventor U Hyun Kim

U Hyun 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).

  • Bias circuit and method for operating the same
    Patent number: 7541754
    Abstract: A bias circuit and a method for operating the same minimizes a picture distortion. The bias circuit includes a main capacitor and a plurality of sub capacitors for compensating picture distortion, a controller provides control signals having different duty cycles, and a plurality of switches receiving each of the switch control signals and changing each link (or path) between the main capacitor and the sub capacitors in accordance with the received switch control signals.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: June 2, 2009
    Assignee: LG Electronics Inc.
    Inventor: U Hyun Kim
  • Apparatus for preventing auto-convergence error in projection television receiver
    Patent number: 7227593
    Abstract: Disclosed is a video display an auto-convergence error in a projection television receiver (TV) capable of preventing generation of an error when an auto-convergence is performed.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: June 5, 2007
    Assignee: LG Electronics Inc.
    Inventors: Chung Hee Lee, U Hyun Kim