Patents by Inventor David Barlett

David Barlett 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).

  • Positioning systems
    Patent number: 9651665
    Abstract: A method is provided whereby a group of receivers local to one another make GNSS measurements of a number of satellites, from one or multiple different GNSS's, and by combining the measurements of the same satellites made by the different receivers it is possible given sufficient conditions to determine the positions of the receivers and the satellite errors such that the positions obtained are equivalent to those obtained from a traditional differential GNSS system, without the need for a static reference receiver at a known location.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: May 16, 2017
    Assignee: u-blox AG
    Inventors: David Barlett, Andy Thurman
  • POSITIONING SYSTEMS
    Publication number: 20140145878
    Abstract: A method is provided whereby a group of receivers local to one another make GNSS measurements of a number of satellites, from one or multiple different GNSS's, and by combining the measurements of the same satellites made by the different receivers it is possible given sufficient conditions to determine the positions of the receivers and the satellite errors such that the positions obtained are equivalent to those obtained from a traditional differential GNSS system, without the need for a static reference receiver at a known location.
    Type: Application
    Filed: September 27, 2011
    Publication date: May 29, 2014
    Applicant: OMNISENSE LIMITED
    Inventors: David Barlett, Andy Thurman