Patents by Inventor Kar-chung Leo Lee

Kar-chung Leo Lee 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).

  • Output drive circuit that accommodates variable supply voltages
    Patent number: 7586343
    Abstract: In accordance with the invention, a driver circuit is described that permits a single thin gate oxide process to be utilized where a dual oxide process may normally be necessary. Circuits employing only thin gate oxide devices are used as the design basis for a single product with a single set of tooling and manufacturing process to operate within the same timing specifications for a core voltage output drive as well as for a higher system drive.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: September 8, 2009
    Assignee: Integrated Device Technology, Inc
    Inventors: David Pilling, Kar-chung Leo Lee, Mario Fulam Au
  • Output drive circuit that accommodates variable supply voltages
    Patent number: 7224195
    Abstract: In accordance with the invention, a driver circuit is described that permits a single thin gate oxide process to be utilized where a dual oxide process may normally be necessary. Circuits employing only thin gate oxide devices are used as the design basis for a single product with a single set of tooling and manufacturing process to operate within the same timing specifications for a core voltage output drive as well as for a higher system drive.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: May 29, 2007
    Assignee: Integrated Device Technology, Inc.
    Inventors: David Pilling, Kar-chung Leo Lee, Mario Fulam Au