Patents by Inventor Douglas A. Voorhies

Douglas A. Voorhies 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: 7064763
    Abstract: A graphics pipeline system and method are provided for graphics processing. Such system includes a transform module positioned on a single semiconductor platform for transforming graphics data from object space to screen space. Coupled to the transform module is a lighting module which is positioned on the single semiconductor platform for lighting the graphics data. Also included is a rasterizer coupled to the lighting module and positioned on the single semiconductor platform for rendering the graphics data.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: June 20, 2006
    Assignee: NVIDIA Corporation
    Inventors: John Erik Lindholm, Simon Moy, Kevin Dawallu, Mingjian Yang, John Montrym, David B. Kirk, Paolo E. Sabella, Matthew N. Papakipos, Douglas A. Voorhies, Nicholas J. Foskett
  • Patent number: 7050055
    Abstract: A graphics pipeline system and associated method are provided for graphics processing. Such system includes a transform module adapted for receiving graphics data. The transform module serves to transform the graphics data from a first space to a second space. Coupled to the transform module is a lighting module which is positioned on the single semiconductor platform for lighting the graphics data. During use, the graphics pipeline system is capable of carrying out a fog and blending operation.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: May 23, 2006
    Assignee: NVIDIA Corporation
    Inventors: John Erik Lindholm, Simon Moy, Kevin Dawallu, Mingjian Yang, John Montrym, David B. Kirk, Paolo E. Sabella, Matthew N. Papakipos, Douglas A. Voorhies, Nicholas J. Foskett
  • Patent number: 7034829
    Abstract: A graphics pipeline system with an integrated masking operation is provided. Included is a transform module adapted for being coupled to a buffer to receive graphics data therefrom. Such transform module is positioned on a single semiconductor platform for transforming the graphics data from a first space to a second space. Also included is a lighting module coupled to the transform module and positioned on the same single semiconductor platform as the transform module. The lighting modules serves for performing lighting operations on the graphics data received from the transform module. In use, a masking operation is further performed on the single semiconductor platform.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: April 25, 2006
    Assignee: Nvidia Corporation
    Inventors: John Erik Lindholm, Simon Moy, Kevin Dawallu, Mingjian Yang, John Montrym, David B. Kirk, Paolo E. Sabella, Matthew N. Papakipos, Douglas A. Voorhies, Nicholas J. Foskett
  • Patent number: 7023437
    Abstract: A system and method are provided for accelerating graphics processing utilizing multiple-pass rendering. Initially, geometry operations are performed on graphics data, and the graphics data is stored in memory. During a first rendering pass, various operations take place. For example, the graphics data is read from the memory, and the graphics data is rasterized. Moreover, first z-culling operations are performed utilizing the graphics data. Such first z-culling operations maintain a first occlusion image. During a second rendering pass, the graphics data is read from memory. Still yet, the graphics data is rasterized and second z-culling operations are performed utilizing the graphics data and the first occlusion image. Moreover, visibility operations are performed utilizing the graphics data and a second occlusion image. Raster-processor operations are also performed utilizing the graphics data, during the second rendering pass.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: April 4, 2006
    Assignee: NVIDIA Corporation
    Inventors: Douglas A. Voorhies, Edward C. Greene, Emmett M. Kilgariff, Svetoslav Tzvetkov
  • Patent number: 7002577
    Abstract: A graphics pipeline system and associated method are provided with an integrated clipping operation. First included is a transform module positioned on a single semiconductor platform for transforming graphics data from a first space to a second space. Also provided is a lighting module positioned on the same single semiconductor platform as the transform module. The lighting module is adapted for performing lighting operations on the graphics data. A clipping operation is also performed utilizing the single semiconductor platform.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: February 21, 2006
    Assignee: NVIDIA Corporation
    Inventors: John Erik Lindholm, Simon Moy, Kevin Dawallu, Mingjian Yang, John Montrym, David B. Kirk, Paolo E. Sabella, Matthew N. Papakipos, Douglas A. Voorhies, Nicholas J. Foskett
  • Patent number: 6992667
    Abstract: A graphics hardware system and method are provided for graphics processing. Such system includes a transform module positioned on a single semiconductor platform for transforming graphics data. Coupled to the transform module is a lighting module which is positioned on the single semiconductor platform for lighting the graphics data. Also included is a rasterizer coupled to the lighting module and positioned on the single semiconductor platform for rendering the graphics data. As an option, the graphics hardware system may further be equipped with skinning, swizzling and masking capabilities.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: January 31, 2006
    Assignee: NVIDIA Corporation
    Inventors: John Erik Lindholm, Simon Moy, Kevin Dawallu, Mingjian Yang, John Montrym, David B. Kirk, Paolo E. Sabella, Matthew N. Papakipos, Douglas A. Voorhies, Nicholas J. Foskett
  • Patent number: 6992669
    Abstract: A graphics pipeline system and method are provided for graphics processing. Such system includes a transform module adapted for receiving graphics data. The transform module serves to transform the graphics data from a first space to a second space. Coupled to the transform module is a lighting module which is positioned on the single semiconductor platform for performing lighting operations on the graphics data received from the transform module. Also included is a rasterizer coupled to the lighting module and positioned on the single semiconductor platform for rendering the graphics data received from the lighting module. During use, an antialiasing feature is implemented on the single semiconductor platform to improve a quality of the graphics rendering.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: January 31, 2006
    Assignee: NVIDIA Corporation
    Inventors: John S. Montrym, Douglas A. Voorhies, Steven E. Molnar
  • Patent number: 6894689
    Abstract: A system, method and computer program product are provided for avoiding reading z-values in a graphics pipeline. Initially, near z-values are stored which are each representative of a near z-value on an object in a region. Such region is defined by a tile and a coverage mask therein. Thereafter, the stored near z-values are compared with far z-values computed for other objects in the region. Such comparison indicates whether an object is visible in the region. Based on the comparison, z-values previously stored for image samples in the region are conditionally read from memory.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: May 17, 2005
    Assignee: NVIDIA Corporation
    Inventors: Edward C. Greene, Douglas A. Voorhies, Paolo Sabella, John M. Danskin, James M. Van Dyke
  • Patent number: 6765575
    Abstract: Clip-less rasterization is provided by a plurality of operations. First, a primitive is received that is defined by a plurality of vertices. Each of such vertices includes a W-value. Thereafter, an area is identified based on the W-values. Such area is representative of a portion of a display to be drawn corresponding to the primitive.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: July 20, 2004
    Assignee: Nvidia Corporation
    Inventors: Douglas A. Voorhies, Nicholas J. Foskett, Matthew N. Papakipos
  • Patent number: 6734861
    Abstract: A system, method and article of manufacture are afforded for providing an interlock module in a graphics pipeline. initially, first information is received indicative of a first set of pixels that overlap a primitive. Such first set of pixels are currently being processed in the graphics pipeline. Also received is second information indicative of a second set of pixels that overlap the primitive. The second set of pixels are ready for being inputted in the graphics pipeline for processing. Thereafter, the first information and the second information are evaluated, and the second set of pixels is conditionally processed based on the evaluation.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: May 11, 2004
    Assignee: nVidia Corporation
    Inventors: James M. Van Dyke, Douglas A. Voorhies, James E. Margeson, III, John Montrym
  • Patent number: 6650331
    Abstract: A graphics pipeline system is provided with an integrated scissor operation. First provided is a transform module adapted for being coupled to a buffer to receive graphics data therefrom. Such transform module is positioned on a single semiconductor platform for transforming the graphics data from a first space to a second space. Associated therewith is a lighting module coupled to the transform module and positioned on the same single semiconductor platform as the transform module for performing lighting operations on the graphics data received from the transform module. A scissor operation is performed on the same single semiconductor platform as the transform module and the lighting module.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: November 18, 2003
    Assignee: NVIDIA Corporation
    Inventors: John Erik Lindholm, Simon Moy, Kevin Dawallu, Mingjian Yang, John Montrym, David B. Kirk, Paolo E. Sabella, Matthew N. Papakipos, Douglas A. Voorhies, Nicholas J. Foskett
  • Patent number: 6650325
    Abstract: A method, apparatus and article of manufacture are provided for performing rasterization using alternating sense point traversal. Upon receipt of a primitive, i.e. a triangle, a plurality of points are positioned on or near the primitive. Such points define an enclosed convex region and may be located at corners of the convex region. In operation, the points and convex region are moved in an alternating manner for the purpose of identifying an area in the primitive for rendering pixels therein. In particular, the points are moved in a boustrophedonic manner.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: November 18, 2003
    Assignee: NVIDIA Corporation
    Inventors: Douglas A. Voorhies, Nicholas J. Foskett
  • Patent number: 6646639
    Abstract: A system, method and computer program product are provided for avoiding reading z-values in a graphics pipeline. Initially, near z-values are stored which are each representative of a near z-value on an object in a region. Such region is defined by a tile and a coverage mask therein. Thereafter, the stored near z-values are compared with far z-values computed for other objects in the region. Such comparison indicates whether an object is visible in the region. Based on the comparison, z-values previously stored for image samples in the region are conditionally read from memory.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: November 11, 2003
    Assignee: NVIDIA Corporation
    Inventors: Edward C. Greene, Douglas A. Voorhies, Paolo Sabella, John M. Danskin, James M. Van Dyke
  • Publication number: 20030189565
    Abstract: A graphics hardware system and method are provided for graphics processing. Such system includes a transform module positioned on a single semiconductor platform for transforming graphics data. Coupled to the transform module is a lighting module which is positioned on the single semiconductor platform for lighting the graphics data. Also included is a rasterizer coupled to the lighting module and positioned on the single semiconductor platform for rendering the graphics data. As an option, the graphics hardware system may further be equipped with skinning, swizzling and masking capabilities.
    Type: Application
    Filed: March 31, 2003
    Publication date: October 9, 2003
    Applicant: NVIDIA CORPORATION
    Inventors: John Erik Lindholm, Simon Moy, Kevin Dawallu, Mingjian Yang, John Montrym, David B. Kirk, Paolo E. Sabella, Matthew N. Papakipos, Douglas A. Voorhies, Nicholas J. Foskett
  • Publication number: 20030112245
    Abstract: A graphics pipeline system and method are provided for graphics processing. Such system includes a transform module positioned on a single semiconductor platform for transforming graphics data from object space to screen space. Coupled to the transform module is a lighting module which is positioned on the single semiconductor platform for lighting the graphics data. Also included is a rasterizer coupled to the lighting module and positioned on the single semiconductor platform for rendering the graphics data.
    Type: Application
    Filed: June 28, 2002
    Publication date: June 19, 2003
    Applicant: nVIDIA CORPORATION
    Inventors: John Erik Lindholm, Simon Moy, Kevin Dawallu, Mingjian Yang, John Montrym, David B. Kirk, Paolo E. Sabella, Matthew N. Papakipos, Douglas A. Voorhies, Nicholas J. Foskett
  • Patent number: 6577309
    Abstract: A graphics pipeline system is provided with a transform module positioned on a single semiconductor platform for transforming graphics data. Also included is a lighting module positioned on the same single semiconductor platform as the transform module for lighting the graphics data. In use, various operations may be performed utilizing the single semiconductor platform such as rendering, fog operations, blending, coloring operations, etc.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: June 10, 2003
    Assignee: NVIDIA Corporation
    Inventors: John Erik Lindholm, Simon Moy, Kevin Dawallu, Mingjian Yang, John Montrym, David B. Kirk, Paolo E. Sabella, Matthew N. Papakipos, Douglas A. Voorhies, Nicholas J. Foskett
  • Publication number: 20030103050
    Abstract: A graphics pipeline system is provided for graphics processing. Such system includes a transform module adapted for being coupled to a vertex attribute buffer for receiving vertex data. The transform module serves to transform the vertex data from object space to screen space. Coupled to the transform module is a lighting module which is positioned on the single semiconductor platform for performing lighting operations on the vertex data received from the transform module. Also included is a rasterizer coupled to the lighting module and positioned on the single semiconductor platform for rendering the vertex data received from the lighting module.
    Type: Application
    Filed: September 20, 2001
    Publication date: June 5, 2003
    Inventors: John Erik Lindholm, Simon Moy, Kevin Dawallu, Mingjian Yang, John Montrym, David B. Kirk, Paolo E. Sabella, Matthew N. Papakipos, Douglas A. Voorhies, Nicholas J. Foskett
  • Publication number: 20030103054
    Abstract: A graphics pipeline system and method are provided for graphics processing. Such system includes a transform module adapted for receiving graphics data. The transform module serves to transform the graphics data from a first space to a second space. Coupled to the transform module is a lighting module which is positioned on the single semiconductor platform for performing lighting operations on the graphics data received from the transform module. Also included is a rasterizer coupled to the lighting module and positioned on the single semiconductor platform for rendering the graphics data received from the lighting module. During use, an antialiasing feature is implemented on the single semiconductor platform to improve a quality of the graphics rendering.
    Type: Application
    Filed: July 17, 2002
    Publication date: June 5, 2003
    Applicant: nVIDIA Corporation
    Inventors: John S. Montrym, Douglas A. Voorhies, Steven E. Molnar
  • Patent number: 6504542
    Abstract: A method, apparatus and article of manufacture are provided for performing area rasterization using sense points. Upon receipt of a primitive, e.g. a triangle, line equation coefficients of line equations are determined for lines that define the primitive. Thereafter, a plurality of points is positioned on or near the primitive. Such points define an enclosed convex region. Next, the line equations are evaluated at the points. During operation, the points and convex region are moved based on the evaluation of the line equations for the purpose of identifying an area in the primitive for rendering pixels therein.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: January 7, 2003
    Assignee: Nvidia Corporation
    Inventors: Douglas A. Voorhies, Nicholas J. Foskett
  • Publication number: 20020196259
    Abstract: A graphics pipeline system and associated method are provided for graphics processing. Such system includes a transform module adapted for receiving graphics data. The transform module serves to transform the graphics data from a first space to a second space. Coupled to the transform module is a lighting module which is positioned on the single semiconductor platform for lighting the graphics data. During use, the graphics pipeline system is capable of carrying out a fog and blending operation.
    Type: Application
    Filed: June 28, 2002
    Publication date: December 26, 2002
    Applicant: nVIDIA CORPORATION
    Inventors: John Erik Lindholm, Simon Moy, Kevin Dawallu, Mingjian Yang, John Montrym, David B. Kirk, Paolo E. Sabella, Matthew N. Papakipos, Douglas A. Voorhies, Nicholas J. Foskett