Patents by Inventor PINGLI HAO

PINGLI HAO 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).

  • Integrated circuit with secure scan enable
    Patent number: 9927490
    Abstract: An integrated circuit senses attempts to access security-related data stored in registers connectable into a scan chain when the attempt includes locally and selectively asserting a scan-enable signal at a corresponding branch of the scan-enable tree when the integrated circuit is in a secure functional mode. When such an attempt is detected, the integrated circuit (i) generates a security warning that causes a reset of the security-related data and/or (ii) engages a bypass switch to disconnect the scan chain from the respective output terminal to preclude the security-related data from being shifted out of the IC via the scan chain.
    Type: Grant
    Filed: July 3, 2016
    Date of Patent: March 27, 2018
    Assignee: NXP USA, INC.
    Inventors: Pingli Hao, Wanggen Zhang
  • INTEGRATED CIRCUIT WITH SECURE SCAN ENABLE
    Publication number: 20170089978
    Abstract: An integrated circuit senses attempts to access security-related data stored in registers connectable into a scan chain when the attempt includes locally and selectively asserting a scan-enable signal at a corresponding branch of the scan-enable tree when the integrated circuit is in a secure functional mode. When such an attempt is detected, the integrated circuit (i) generates a security warning that causes a reset of the security-related data and/or (ii) engages a bypass switch to disconnect the scan chain from the respective output terminal to preclude the security-related data from being shifted out of the IC via the scan chain.
    Type: Application
    Filed: July 3, 2016
    Publication date: March 30, 2017
    Inventors: PINGLI HAO, Wanggen Zhang