Patents by Inventor Walter Donavan

Walter Donavan 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).

  • Reconfigurable high-performance texture pipeline with advanced filtering
    Patent number: 7884831
    Abstract: Circuits, methods, and apparatus that provide texture caches and related circuits that store and retrieve texels in a fast and efficient manner. One such texture circuit provides an increased number of bilerps for each pixel in a group of pixels, particularly when trilinear or aniso filtering is needed. For trilinear filtering, texels in a first and second level of detail are retrieved for a number of pixels during a clock cycle. When aniso filtering is performed, multiple bilerps can be retrieved for each of a number of pixels during one clock cycle.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: February 8, 2011
    Assignee: NVIDIA Corporation
    Inventors: Alexander L. Minkin, Joel J. McCormack, Paul S. Heckbert, Michael J. M. Toksvig, Luke Y. Chang, Karim Abdalla, Bo Hong, John W. Berendsen, Walter Donavan, Emmett M. Kilgariff
  • RECONFIGURABLE HIGH-PERFORMANCE TEXTURE PIPELINE WITH ADVANCED FILTERING
    Publication number: 20100118043
    Abstract: Circuits, methods, and apparatus that provide texture caches and related circuits that store and retrieve texels in a fast and efficient manner. One such texture circuit provides an increased number of bilerps for each pixel in a group of pixels, particularly when trilinear or aniso filtering is needed. For trilinear filtering, texels in a first and second level of detail are retrieved for a number of pixels during a clock cycle. When aniso filtering is performed, multiple bilerps can be retrieved for each of a number of pixels during one clock cycle.
    Type: Application
    Filed: January 19, 2010
    Publication date: May 13, 2010
    Applicant: NVIDIA Corporation
    Inventors: Alexander L. Minkin, Joel J. McCormack, Paul S. Heckbert, Michael J.M. Toksvig, Luke Y. Chang, Karim Abdalla, Bo Hong, John W. Berendsen, Walter Donavan, Emmett M. Kilgariff