Patents by Inventor David L. Dignam

David L. Dignam 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: 8610729
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: December 17, 2013
    Assignee: Graphic Properties Holdings, Inc.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Publication number: 20120262470
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 18, 2012
    Applicant: GRAPHICS PROPERTIES HOLDINGS, INC.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Patent number: 8289334
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: October 16, 2012
    Assignee: Graphics Properties Holdings, Inc.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher Migdal, Danny D. Loh
  • Publication number: 20120256932
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 11, 2012
    Applicant: Graphics Properties Holdings, Inc.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Publication number: 20120256942
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 11, 2012
    Applicant: GRAPHICS PROPERTIES HOLDINGS, INC.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Publication number: 20120256933
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 11, 2012
    Applicant: GRAPHICS PROPERTIES HOLDINGS, INC.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Publication number: 20120249548
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 4, 2012
    Applicant: GRAPHICS PROPERTIES HOLDINGS, INC.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Publication number: 20120249561
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 4, 2012
    Applicant: GRAPHICS PROPERTIES HOLDINGS, INC.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Publication number: 20120249566
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 4, 2012
    Applicant: GRAPHICS PROPERTIES HOLDINGS, INC.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Publication number: 20120249562
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 4, 2012
    Applicant: GRAPHICS PROPERTIES HOLDINGS, INC.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Publication number: 20120139931
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Application
    Filed: February 16, 2012
    Publication date: June 7, 2012
    Applicant: GRAPHICS PROPERTIES HOLDINGS, INC.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Patent number: 8144158
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: March 27, 2012
    Assignee: Graphics Properties Holdings, Inc.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Publication number: 20110169842
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 14, 2011
    Applicant: GRAPHICS PROPERTIES HOLDINGS, INC.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Publication number: 20100079471
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Application
    Filed: December 7, 2009
    Publication date: April 1, 2010
    Applicant: GRAPHICS PROPERTIES HOLDINGS, INC.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Patent number: 7518615
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: April 14, 2009
    Assignee: Silicon Graphics, Inc.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Publication number: 20080284786
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Application
    Filed: July 7, 2008
    Publication date: November 20, 2008
    Applicant: SILICON GRAPHICS, INC.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Patent number: 6650327
    Abstract: A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: November 18, 2003
    Assignee: Silicon Graphics, Inc.
    Inventors: John M. Airey, Mark S. Peercy, Robert A. Drebin, John Montrym, David L. Dignam, Christopher J. Migdal, Danny D. Loh
  • Patent number: 6452603
    Abstract: A circuit and process perform trilinear filtering using four texels (called “nearest texels”) that are nearest to a to-be-displayed pixel, and also using twelve additional texels (called “surrounding texels”) that surround the nearest texels. The nearest texels and the surrounding texels (together called “fine texels”) are all from only one level of detail L, while a filtered texel being generated is at another level of detail L+p, wherein p is a fractional level of detail. The filtered texel is used in rendering the to-be-displayed pixel, and can be identical to the texel obtained by trilinear filtering in the prior art. The circuit and process use fine texels to regenerate a quad of coarse texels that are used with a quad of the nearest texels to perform trilinear filtering.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: September 17, 2002
    Assignee: NVIDIA US Investment Company
    Inventor: David L. Dignam
  • Patent number: 6437780
    Abstract: A geometry tiler identifies tiles on a computer's screen that are covered by a graphics primitive by use of edges of the graphics primitive. Precise identification of tiles of various types (such as edge tiles covered by a segment) eliminates identification of one or more tiles that are merely located adjacent to the graphics primitive, but are not touched by the graphics primitive. For example, the geometry tiler can identify each of three types of tiles: vertex tiles, edge tiles and interior tiles.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: August 20, 2002
    Assignee: Nvidia US Investment Company
    Inventors: Oana Baltaretu, David L. Dignam, Sanjay O. Gupta
  • Patent number: 6414682
    Abstract: The present invention provides a system, apparatus and method for filtering an image that produces output images having high resolution without visual discontinuity across a wide range of resize ratios. The invention includes a linear filter for source images requiring low magnification and a higher order filter for source images requiring high magnification. In the transition region an interpolation is performed between the linear and higher order filters to provide a smooth transition in filtering and magnification to produce an output image.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: July 2, 2002
    Assignee: Microsoft Corporation
    Inventors: David S. Warren, David L. Dignam