Patents by Inventor Franz Hillenbrand

Franz Hillenbrand 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).

  • Patent number: 4949281
    Abstract: The invention utilizes polynomials, where the graphic objects are predetermined in the form of reference contours in contour coordinates. The generation process involves subdividing the length of each contour segment into a multiple of curve segments each, preferably a straight line. The coordinate points associated with the respective curve segments are compared with those of the given contour segment and the distance between them is determined. If a predetermined distance between them is exceeded, the coordinate location on the contour segment which is at the greatest distance from the straight line is chosen. A curve defined by the use of parametric spline functions is then laid between the starting and end point and incorporating the chosen base point. At a time when the predetermined distance no longer is exceeded, the base points assigned are stored in a memory.
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: August 14, 1990
    Assignee: H. Berthold AG
    Inventors: Franz Hillenbrand, Klaus Schroer, Frank Rebs, Michael Dlabka, Dietmar Sprenger