Patents by Inventor Christopher Matther Foster

Christopher Matther Foster 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 TRACKING AND LOCATING A PERSON, ANIMAL, OR MACHINE
    Publication number: 20140203970
    Abstract: A system and method for estimating the position of an object, such as a person, animal, or machine. The system includes first and second inertial measurement units, a first and second originator antennas, and a first and second transponder antennas. The system uses data from the inertial measurement units to estimate a position of the object. The system also calculates a range measurement between the first originator antenna and first transponder antenna. The system calculates a first CPD measurement between the second transponder antenna and the first originator antenna, and a second CPD measurement between the second originator antenna and the first transponder antenna. The range measurement and at least one CPD measurement are used to update a Kalman filter for estimating the position of the object. The system determines also updates the Kalman filter when one of the inertial measurement units is in a zero-velocity condition.
    Type: Application
    Filed: December 16, 2013
    Publication date: July 24, 2014
    Applicant: ENSCO, Inc.
    Inventors: David W.A. Taylor, Bradley David Farnsworth, William Todd Faulkner, Christopher Matther Foster, Robert Barlow Alwood