Patents by Inventor Frederick Bryan

Frederick Bryan 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).

  • Predictive drop and load algorithm for an object-based geographical information system
    Patent number: 6144338
    Abstract: A method and system are disclosed for providing a more accurate position of a mobile receiver even though a signal received by the mobile receiver indicating the position of the mobile receiver is inaccurate. The received signal is used as an estimated indication of the position of the mobile receiver. A database comprises geometrical objects representing navigable routes. The geometrical objects include a geometry attribute defining the geometry of a complete representation of the navigable route. A geometrical object representing a navigable route is determined where the mobile receiver is probably located. The estimated position of the mobile receiver can then be compared against the geometry of the navigable route and against the previous positions in which the mobile receiver was located. The estimated position of the mobile receiver can be adjusted if necessary to provide a more probable position of the mobile receiver.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: November 7, 2000
    Assignee: PRC Public Sector. Inc.
    Inventor: Frederick Bryan Davies