Patents by Inventor Wen-Kuen Vincent Liu

Wen-Kuen Vincent Liu 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).

  • Voltage multiple dimming control apparatus
    Patent number: 8106606
    Abstract: The present invention discloses a control apparatus, which not only accepts multiple dimming control signals, but also combines the signals in analog manner. By means of this, an inevitable analog to digital converter in a conventional voltage multiple dimming control apparatus can be saved without hurting the performance of generation of pulse width modulation signals. Compared with the conventional arts, the present invention further exhibits reduction in view of chip size and power consumption.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: January 31, 2012
    Assignee: Holtek Semiconductor Inc.
    Inventors: Wen-Kuen Vincent Liu, Yi-Tai Chang
  • VOLTAGE MULTIPLE DIMMING CONTROL APPARATUS
    Publication number: 20110006705
    Abstract: The present invention discloses a control apparatus, which not only accepts multiple dimming control signals, but also combines the signals in analog manner. By means of this, an inevitable analog to digital converter in a conventional voltage multiple dimming control apparatus can be saved without hurting the performance of generation of pulse width modulation signals. Compared with the conventional arts, the present invention further exhibits reduction in view of chip size and power consumption.
    Type: Application
    Filed: August 13, 2009
    Publication date: January 13, 2011
    Applicant: HOLTEK SEMICONDUCTOR INC.
    Inventors: Wen-kuen Vincent Liu, Yi-Tai Chang