Patents by Inventor Duncan Andrew Riach

Duncan Andrew Riach 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).

  • Method and apparatus for displaying progressive material on an interlaced device
    Patent number: 7573528
    Abstract: A method and apparatus are provided for displaying progressive material on an interlaced display where the number of lines of the source frame is equal to or less than the number of lines in a display field, where such lines in the display field are derived from all of the lines of the source frame.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: August 11, 2009
    Assignee: NVIDIA Corporation
    Inventor: Duncan Andrew Riach
  • Method and apparatus for displaying progressive material on an interlaced device
    Patent number: 7015970
    Abstract: A method and apparatus are provided for displaying progressive material on an interlaced display where the number of lines of the source frame is equal to or less than the number of lines in a display field, where such lines in the display field are derived from all of the lines of the source frame.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: March 21, 2006
    Assignee: NVIDIA Corporation
    Inventor: Duncan Andrew Riach
  • Method for improving quality in graphics pipelines through a frame's top and bottom field processing with conditional thresholding and weighting techniques
    Patent number: 6788312
    Abstract: A system, method and computer program product are provided for improving image quality in a graphics pipeline. Initially, a difference is detected between a first pixel of a first frame to be outputted and a corresponding second pixel of a second frame outputted before the first frame. Such difference may be representative of motion which is capable of reducing image quality. A pixel output is then modified if such a difference is detected. This is accomplished utilizing texturing hardware in the graphics pipeline. Thereafter, the pixel output is outputted via a progressive or interlaced display system.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: September 7, 2004
    Assignee: Nvidia Corporation
    Inventors: Hassane S. Azar, Douglas Sim Dietrich, Jr., Duncan Andrew Riach, Henry P. Moreton, Douglas H. Rogers