Patents by Inventor James Ya-Kong Hsu

James Ya-Kong Hsu 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).

  • Active matrix light emitting diode pixel structure and concomitant method
    Patent number: 6229506
    Abstract: A LED pixel structure that reduces current nonuniformities and threshold voltage variations in a “drive transistor”of the pixel structure is disclosed. The LED pixel structure incorporates a current source for loading data into the pixel via a data line. Alternatively, an auto zero voltage is determined for the drive transistor prior to the loading of data.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: May 8, 2001
    Assignee: Sarnoff Corporation
    Inventors: Robin Mark Adrian Dawson, Michael Gillis Kane, James Ya-Kong Hsu, Fu-Lung Hsueh, Alfred Charles Ipri, Roger Green Stewart