Patents by Inventor Marc-Philippe Rudel

Marc-Philippe Rudel 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).

  • Method and apparatus for improving the accuracy of relative position estimates in a satellite-based navigation system
    Patent number: 6049304
    Abstract: The accuracy of relative position estimates between two vehicles, generated using a satellite-based navigation system, is improved by eliminating at an early stage in the calculation process, errors affecting simultaneously both receivers. The standard absolute navigation equations are modified to solve directly for relative position, while avoiding a final step differentiation, thereby providing increased precision.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: April 11, 2000
    Assignee: Rannoch Corporation
    Inventors: Marc-Philippe Rudel, Jonathan C. Baldwin