Patents by Inventor Marie Y. Alfred

Marie Y. Alfred 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).

  • Drop zone rally point beacon
    Patent number: 8805301
    Abstract: A VLF beacon operates in the near field of the antenna, providing a low impedance (magnetic) wave located by employing simple amplitude gradient and phase alignment direction finding (DF) methods. When rotated, the beacon antenna radiates its signal with little attenuation. Beacon antennas include a loop antenna which has a 1/r3 B-field amplitude relationship with distance. The antenna radiation range is limited, but the detectable near field signal is strong. The receiver comprises a simple 2-channel RF front end with filtering and an A/D converter. The antenna for each channel is a much smaller ferrite rod loaded loop.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: August 12, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Albert K. Dec, Marie Y. Alfred
  • DROP ZONE RALLY POINT BEACON
    Publication number: 20130149960
    Abstract: A VLF beacon operates in the near field of the antenna, providing a low impedance (magnetic) wave located by employing simple amplitude gradient and phase alignment direction finding (DF) methods. When rotated, the beacon antenna radiates its signal with little attenuation. Beacon antennas include a loop antenna which has a 1/r3 B-field amplitude relationship with distance. The antenna radiation range is limited, but the detectable near field signal is strong. The receiver comprises a simple 2-channel RF front end with filtering and an A/D converter. The antenna for each channel is a much smaller ferrite rod loaded loop.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 13, 2013
    Applicant: BAE SYSTEMS Information & Electronic Systems Integration Inc.
    Inventors: Albert K. Dec, Marie Y. Alfred