Patents by Inventor John E. Magoon

John E. Magoon 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).

  • Tracking circuit for following objects through antenna nulls
    Patent number: 4806934
    Abstract: A circuit for removing abrupt phase changes in a received signal, such as those caused when an object tracking system's directional receiving antenna becomes misaligned with the tracked object. The circuit uses a phase detector to determine when an abrupt phase change has occurred, such as when a signal returned from the tracked object aligns with an antenna null and reverses the phase of a control signal fed to a phase locked oscillator. A delaying low pass filter insures the control signal is stable before it is fed to the phase locked oscillator.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: February 21, 1989
    Assignee: Raytheon Company
    Inventor: John E. Magoon