Patents by Inventor Andrew P. Pearce

Andrew P. Pearce 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).

  • Analytic motion blur coverage in the generation of computer graphics imagery
    Patent number: 6211882
    Abstract: A system and method for simulating motion blur. Intersections of pixel sampling points with leading and trailing edges of moving polygons are identified. The intersection points define segments of coverage of the pixel sampling point by a polygon. A segment list is sorted to identify segments that are associated with visible polygons. The segments of visible polygons are passed to shading and texturing functions which individually determine the temporal sampling points for a single polygon or a group of polygons.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: April 3, 2001
    Assignee: Silicon Graphics, Inc.
    Inventors: Andrew P. Pearce, Kelvin Hsien Ching Sung
  • Analytic motion blur coverage in the generation of computer graphics imagery
    Patent number: 5809219
    Abstract: A system and method for simulating motion blur. Intersections of pixel sampling points with leading and trailing edges of moving polygons are identified. The intersection points define segments of coverage of the pixel sampling point by a polygon. A segment list is sorted to identify segments that are associated with visible polygons. The segments of visible polygons are passed to shading and texturing functions which individually determine the temporal sampling points for a single polygon or a group of polygons.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: September 15, 1998
    Assignee: Silicon Graphics, Inc.
    Inventors: Andrew P. Pearce, Kelvin Hsien Ching Sung