Patents by Inventor Chun Lin Guo

Chun Lin Guo 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 device of phase detection in phase modulation systems
    Patent number: 6566941
    Abstract: The invention discloses a phase detection method including a quadrant determining procedure, a first comparison procedure, a second comparison procedure, a coordinate transforming procedure, and a phase computing procedure. A first and a second phase approximate values are obtained in the quadrant determining procedure and the first comparison procedure. A third phase approximate value is obtained in the second comparison procedure and the coordinate transforming procedure. A total phase is computed in the phase computing procedure. Using this method, we does not need to consult look-up tables to determine the phase, thus saving a lot of memory space. The invention also provides a phase detection device.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: May 20, 2003
    Assignee: Syncomm Technology Corp.
    Inventor: Chun Lin Guo
  • Method and device of phase detection in phase modulation systems
    Publication number: 20020149420
    Abstract: The invention discloses a phase detection method including a quadrant determining procedure, a first comparison procedure, a second comparison procedure, a coordinate transforming procedure, and a phase computing procedure. A first and a second phase approximate values are obtained in the quadrant determining procedure and the first comparison procedure. A third phase approximate value is obtained in the second comparison procedure and the coordinate transforming procedure. A total phase is computed in the phase computing procedure. Using this method, we does not need to consult look-up tables to determine the phase, thus saving a lot of memory space. The invention also provides a phase detection device.
    Type: Application
    Filed: August 14, 2001
    Publication date: October 17, 2002
    Inventor: Chun Lin Guo