Patents by Inventor Yo-Lih Huang

Yo-Lih Huang 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).

  • Level shifter
    Patent number: 7446564
    Abstract: A level shifter is disclosed, which has an input control circuit, a high-level voltage supply and a step-down circuit. The high-level voltage supply provides a high-level voltage source. The step-down circuit is coupled between the input control circuit and the high-level voltage supply circuit, and includes a high-level control device and a low-level control device. The high-level control device can provide a step-down function for protecting the low-level control device. The low-level control device is control to switch by the control signal or the inverted control signal, thereby driving the high-level voltage source to output.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: November 4, 2008
    Assignee: VIA Technologies, Inc.
    Inventor: Yo-Lih Huang
  • Level shifter
    Publication number: 20050156631
    Abstract: A level shifter is disclosed, which has an input control circuit, a high-level voltage supply and a step-down circuit. The high-level voltage supply provides a high-level voltage source. The step-down circuit is coupled between the input control circuit and the high-level voltage supply circuit, and includes a high-level control device and a low-level control device. The high-level control device can provide a step-down function for protecting the low-level control device. The low-level control device is control to switch by the control signal or the inverted control signal, thereby driving the high-level voltage source to output.
    Type: Application
    Filed: December 29, 2004
    Publication date: July 21, 2005
    Applicant: VIA Technologies, Inc.
    Inventor: Yo-Lih Huang