Patents by Inventor Chongliang MA

Chongliang MA 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).

  • Method and detection circuit for detecting security chip operating state
    Patent number: 10489595
    Abstract: The present invention provide a method and a detection circuit for detecting a security chip operating slate. The detection circuit includes: a first register unit, a triggering unit, a delay unit, a routing unit, and a second register unit, where the second register unit is connected to the triggering unit. A first signal is delayed in the delay unit, to obtain a second signal, a third signal is obtained according to the second signal, and logical operation is performed on the first signal and the third signal, to output a level signal to trigger an alarm unit. Because each unit may be implemented by using a digital circuit, a size of the circuit can be reduced.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: November 26, 2019
    Assignee: Huawei Technologies Co., LTD.
    Inventors: Haofeng Wang, Jiayin Lu, Chongliang Ma
  • METHOD AND DETECTION CIRCUIT FOR DETECTING SECURITY CHIP OPERATING STATE
    Publication number: 20180137283
    Abstract: The present invention provide a method and a detection circuit for detecting a security chip operating slate. The detection circuit includes: a first register unit, a triggering unit, a delay unit, a routing unit, and a second register unit, where the second register unit is connected to the triggering unit. A first signal is delayed in the delay unit, to obtain a second signal, a third signal is obtained according to the second signal, and logical operation is performed on the first signal and the third signal, to output a level signal to trigger an alarm unit. Because each unit may be implemented by using a digital circuit, a size of the circuit can be reduced.
    Type: Application
    Filed: November 15, 2017
    Publication date: May 17, 2018
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haofeng WANG, Jiayin LU, Chongliang MA