Patents by Inventor Donald I. Zulch

Donald I. Zulch 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).

  • Radar calibration using direct measurement equipment and oblique photometry
    Patent number: 4489322
    Abstract: A radar calibration apparatus for the metric measurement of ground position by airborne photogrametry using real time high precision imagery, the transformation of those measurements from camera coordinates to antenna coordinates, the conversion of transformed coordinates to direction cosines of a measured ground position, comparison to radar derived direction, and the calculation and automatic correction of bias errors in direction of the radar measurement.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: December 18, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Donald I. Zulch, Robert H. Brock, Jr.
  • System for correlating electronic distance measurement and aerial photography for the extension of geodetic control
    Patent number: 4199759
    Abstract: A system for correlating electronic distance measurement and aerial photography where an airborne electronic location station is photographed as it passes over an area to be surveyed. The position of the airborne station is precisely measured as it moves and this information is included in the final image processing.
    Type: Grant
    Filed: August 10, 1978
    Date of Patent: April 22, 1980
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Donald I. Zulch, Robert Brock