Patents by Inventor Charles Sheffield

Charles Sheffield 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, system and programmed medium for massive geodetic block triangulation in satellite imaging
    Patent number: 6125329
    Abstract: A computationally efficient method, system and programmed medium according to the present invention creates highly accurate maps of celestial bodies, spanning multiple UTM zones given sparse control points on the celestial body surface without requiring the existence or synthesis of a mathematical model of the satellite image sensor. The present invention provides an improved method and system for producing orthorectification coefficients needed to produce highly accurate maps of the surface of celestial bodies that span multiple UTM zones.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: September 26, 2000
    Assignee: Earth Satellite Corporation
    Inventors: Michael Place, Jon Dykstra, Charles Sheffield, Roger Mitchell