Patents by Inventor Jing-Shawn Wu

Jing-Shawn Wu 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).

  • Four-quadrant multiplier for operation of MOSFET devices in saturation region
    Patent number: 6208192
    Abstract: The invention relates to an improved four-quadrant squarer circuit based on the square-law characteristic of metal oxide-semiconductor field effect transistors (MOSFETs). According to the invention, a CMOS four-quadrant multiplier is provided which is arranged to keep the operating transistors fixed in the saturation region, so that they continuously operate according to the square law, and the circuit of the invention allows the transistors to operate in the saturation region with a wide input range.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: March 27, 2001
    Assignee: National Science Council
    Inventors: Shen-Iuan Liu, Jing-Shawn Wu, Yuh-Shang Hwang