Patents by Inventor Phillip Keslin

Phillip Keslin 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: 8243069
    Abstract: The current invention involves new systems and methods for computing per-sample post-z test coverage when the memory is organized in multiple partitions that may not match the number of shaders. Shaded pixels output by the shaders can be processed by one of several z raster operations units. The shading processing capability can be configured independent of the number of memory partitions and number of z raster operations units. The current invention also involves new systems and method for using different z test modes with multiple render targets with a single or multiple memory partitions. Rendering performance may be improved by using an early z testing mode is used to eliminate non-visible samples prior to shading.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: August 14, 2012
    Assignee: NVIDIA Corporation
    Inventors: Mark J. French, Phillip Keslin, Steven E Molnar, Adam Clark Weitkemper
  • Patent number: 8232991
    Abstract: The current invention involves new systems and methods for computing per-sample post-z test coverage when the memory is organized in multiple partitions that may not match the number of shaders. Shaded pixels output by the shaders can be processed by one of several z raster operations units. The shading processing capability can be configured independent of the number of memory partitions and number of z raster operations units. The current invention also involves new systems and method for using different z test modes with multiple render targets with a single or multiple memory partitions. Rendering performance may be improved by using an early z testing mode is used to eliminate non-visible samples prior to shading.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: July 31, 2012
    Assignee: NVIDIA Corporation
    Inventors: Mark J. French, Phillip Keslin, Steven E Molnar, Adam Clark Weitkemper
  • Patent number: 8228328
    Abstract: The current invention involves new systems and methods for computing per-sample post-z test coverage when the memory is organized in multiple partitions that may not match the number of shaders. Shaded pixels output by the shaders can be processed by one of several z raster operations units. The shading processing capability can be configured independent of the number of memory partitions and number of z raster operations units. The current invention also involves new systems and method for using different z test modes with multiple render targets with a single or multiple memory partitions. Rendering performance may be improved by using an early z testing mode is used to eliminate non-visible samples prior to shading.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: July 24, 2012
    Assignee: NVIDIA Corporation
    Inventors: Mark J. French, Phillip Keslin, Steven E Molnar, Adam Clark Weitkemper
  • Patent number: 7626588
    Abstract: Prescient cache management methods and systems are disclosed. In one embodiment, a local cache that operates within a raster engine operations stage of a graphics rendering pipeline is managed by following a number of caching decisions related to a number of cached tiles. Each of these cached tiles has a certain priority to remain in the local cache, with the priority corresponding to a conflict type received from a buffer operating within a pre-raster engine operations stage of the graphics rendering pipeline.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: December 1, 2009
    Assignee: NVIDIA Corporation
    Inventors: Steven E. Molnar, Mark J. French, Cass W. Everitt, Adam Clark Weitkemper, Phillip Keslin, David L. Anderson, George R. Lynch
  • Patent number: 7616209
    Abstract: Prescient cache management methods and systems are disclosed. In one embodiment, within a pre-raster engine operations stage in a graphics rendering pipeline, tile entries are stored in a buffer. Each of these tile entries is related a transaction request that enters the pre-raster engine operations stage and has a screen coordinates field and a conflict field. If this buffer includes a first tile entry, which is related to a first transaction request associated with a first tile, and a second tile entry, which is related to a second transaction request that enters the pre-raster engine operations stage after the first transaction request and is also associated with the first tile, the conflict field of the first tile entry is updated with a conflict type that reflects a number of tile entries between the first tile entry and the second tile entry.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: November 10, 2009
    Assignee: NVIDIA Corporation
    Inventors: Steven E. Molnar, Mark J. French, Cass W. Everitt, Adam Clark Weitkemper, Phillip Keslin, David L. Anderson, George R. Lynch
  • Publication number: 20080049030
    Abstract: A system, method, and computer program product are provided for remote rendering of computer graphics. The system includes a graphics application program resident at a remote server. The graphics application is invoked by a user or process located at a client. The invoked graphics application proceeds to issue graphics instructions. The graphics instructions are received by a remote rendering control system. Given that the client and server differ with respect to graphics context and image processing capability, the remote rendering control system modifies the graphics instructions in order to accommodate these differences. The modified graphics instructions are sent to graphics rendering resources, which produce one or more rendered images. Data representing the rendered images is written to one or more frame buffers. The remote rendering control system then reads this image data from the frame buffers. The image data is transmitted to the client for display or processing.
    Type: Application
    Filed: August 24, 2007
    Publication date: February 28, 2008
    Applicant: Silicon Graphics, Inc.
    Inventor: Phillip Keslin