Patents by Inventor Yun [Yale] Ning

Yun [Yale] Ning 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 measuring reactive power
    Patent number: 8350558
    Abstract: A system and method for measuring reactive power which uses a pair of quadrate carriers to add a 90 degree phase shift to a voltage path or a current path in a power meter. The quadrate carriers have the same frequency but are offset in phase from each other by 90 degrees.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: January 8, 2013
    Assignee: Analog Devices, Inc.
    Inventors: Yun [Yale] Ning, Xiuhong [George] Lu
  • System and Method for Measuring Reactive Power
    Publication number: 20100085037
    Abstract: A system and method for measuring reactive power which uses a pair of quadrate carriers to add a 90 degree phase shift to a voltage path or a current path in a power meter. The quadrate carriers have the same frequency but are offset in phase from each other by 90 degrees.
    Type: Application
    Filed: May 27, 2009
    Publication date: April 8, 2010
    Applicant: ANALOG DEVICES, INC.
    Inventors: Yun [Yale] Ning, Xiuhong [George] Lu