Patents by Inventor Ran Ao

Ran Ao 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).

  • Diagnostic system
    Patent number: 11031948
    Abstract: A diagnostic system includes a detection circuit comprising a first impedance, a second impedance, a first input pin, a second input pin, a first output pin and a second output pin. The detection circuit is configured to receive an input signal via the first and the second input pins. The first impedance is configured to electrically couple the first input pin and the first output pin, and the second impedance is configured to electrically couple the first input pin with the second input pin and second output pin. The diagnostic system also includes a communication channel. The diagnostic system further includes an input circuit comprising a third input pin, a fourth input pin and a third output pin. The input circuit is configured to provide, via the third output pin, a voltage signal.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: June 8, 2021
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: Lifeng Wang, Hao Wang, Zhili Zhou, Xiaoyan Huang, Ran Ao