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Graphics system configured to perform parallel sample to pixel calculation

Patent 6496187 Issued on December 17, 2002. Estimated Expiration Date: Icon_subject December 27, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

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Inventors

Application

No. 472940 filed on 12/27/1999

US Classes:

345/419, Three-dimension345/611Anti-aliasing or image smoothing

Examiners

Primary: Zimmerman, Mark
Assistant: Santiago, Enrique L

Attorney, Agent or Firm

Foreign Patent References

  • 0 463 700 EP. 01/13/1992
  • 2 278 524 GB. 11/13/1994
  • 91/14995 WO. 10/13/1991

International Class

G06T 015/00

Abstract

A graphics system that is configured to utilize a sample buffer and a plurality of parallel sample-to-pixel calculation units, wherein the sample-pixel calculation units are configured to access different portions of the sample buffer in parallel. The graphics system may include a graphics processor, a sample buffer, and a plurality of sample-to-pixel calculation units. The graphics processor is configured to receive a set of three-dimensional graphics data and render a plurality of samples based on the graphics data. The sample buffer is configured to store the plurality of samples for the sample-to-pixel calculation units, which are configured to receive and filter samples from the sample buffer to create output pixels. Each of the sample-to-pixel calculation units are configured to generate pixels corresponding to a different region of the image. The region may be a vertical or horizontal stripe of the image, or a rectangular portion of the image. Each region may overlap the other regions of the image to prevent visual aberrations.

Other References

  • International Search Report for Application No. PCT/US 00/04148, mailed May 29, 2000
  • Hadfield et al., "Achieving Real-Time Visual Simulation Using PC Graphics Technology," presented at I/ITSEC Nov. 1999
  • Bjernfalk, "Introducing REALimage™ 4000 and HYPERpixel™ Architecture," .COPYRGT. 1999 Evans & Sutherland Computer Corporation, pp. 1-9
  • Bjernfalk, "The Memory System Makes the Difference," .COPYRGT. 1999 Evans & Sutherland Computer Corporation, pp. 1-1
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