Patents by Inventor Cheng L. Xu

Cheng L. Xu 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).

  • System and method for securing the initialization of an inherently non-secure Smartcard controller
    Patent number: 7374080
    Abstract: A system and method for securing the initialization of a Smartcard controller and a Smartcard terminal incorporating the system or the method. In one embodiment, the system includes: (1) a firmware loader associated with a Smartcard controller and configured to receive and authenticate firmware and provide an associated Smartcard driver digital signature and (2) a Smartcard driver associated with the Smartcard controller and configured to be authenticated using the Smartcard driver digital signature and authenticate the firmware.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: May 20, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: Daniel A. Castillo, Keith R. Mowery, Cheng L. Xu