Patents by Inventor Derrick R. Burns

Derrick R. Burns 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).

  • Efficient method and apparatus for determining texture coordinates for lines and polygons
    Patent number: 5649082
    Abstract: A method of generating a pixel in a computer system. The computer system includes a processor and a memory. The memory includes a first polygon and a texture map. The method comprises the steps of: accessing a first point on a first polygon. A step of determining a first line segment having less than a predetermined error and determining whether a next line segment causes less than the predetermined error. The next line segment is longer than the first line segment in one direction. If the next line segment causes less than the predetermined error, then determine whether a new next line segment causes less than the predetermined error. Otherwise, access a texel in the texture map at a position corresponding to the first point and the first line segment, and generate the pixel from the texel.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: July 15, 1997
    Assignee: Silicon Graphics, Inc.
    Inventor: Derrick R. Burns