Patents by Inventor Jian W. Zhu

Jian W. Zhu 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).

  • Reprogrammable integrated circuit (IC) with overwritable nonvolatile storage
    Patent number: 7123517
    Abstract: A reprogrammable integrated circuit (IC) including overwritable nonvolatile storage cells. Cell contents are compared in a differential sense amplifier against a variable reference signal that has a number of selectable reference levels corresponding to reprogrammed cell threshold voltages. With each write cycle the nonvolatile storage cells are overwritten and then, compared against a different, e.g., higher, selectable reference level.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: October 17, 2006
    Assignee: International Business Machines Corporation
    Inventors: Matthew Breitwisch, Chung H. Lam, Steven Mittl, Jian W. Zhu