U.S. patents available from 1976 to present.
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Method and apparatus for storage and retrieval of a texture map in a graphics display system

Patent 5606650 Issued on February 25, 1997. Estimated Expiration Date: Icon_subject June 7, 2015. 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.

Patent References

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Patent #: 4897803
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More ...

Inventors

Assignee

Application

No. 477276 filed on 06/07/1995

US Classes:

345/552, Texture memory345/428, Adjusting level of detail345/564Addressing

Examiners

Primary: Zimmerman, Mark

Attorney, Agent or Firm

International Class

G06T 011/40

Abstract

A method and apparatus for simultaneous retrieval of multiple pixels from a texture map storage means. Multiple texture maps are generated and stored in a modified M/P (multum in pravo--many things in a small space) map form. Even and odd numbered pixels are stored in different memory banks so that adjacent odd and even pixels may be retrieved simultaneously. The MIP maps are stored so that the pages of the MIP maps having the same resolution are stored contiguously. This arrangement has the effect of reducing the number of unique address signals needed for accessing any two adjacent pixels in the texture map and simplifying the generation of texture map pixel addresses.

Other References

  • "Computer Graphics Principles and Practice Second Edition", by Foley, Van Dam, Feiner and Huges, published by the Addision Wesley Publishing Corp., pp. 885-886 and pp. 899-900
  • Fuchs, Henry, et al. "Pixel-Planes 5: A Heterogeneous Multiprocessor Graphics System Using Processor-Enhanced Memories," Computer Graphics, vol. 23, No. 3, pp. 79-88 (Jul. 1989)
  • Akeley, Kurt, et al., "High-Performance Polygon Rendering," Computer Graphics, vol. 22, No. 4, pp. 239-246 (Aug. 1988)
  • Deering, Michael, et al., "The Triangle Processor and Normal Vector Shader: A VLSI System for High Performance Graphics," Computer Graphics, vol. 22, No. 4, pp. 21-30 (Aug. 1988)
  • Kirk, David, et al., "The Rendering Architecture of the DN10000VS," Computer Graphics, vol. 24, No. 4, pp. 299-307 (Aug. 1990)
  • Williams, Lance, "Pyramidal Parametrics," Computer Graphics, vol. 17, No. 3, pp. 1-11 (Jul. 1983)
  • Oka, Masaaki, et al., "Real-Time Manipulation of Texture-Mapped Surfaces," Computer Graphics, vol. 21, No. 4, pp. 181-188 (Jul. 1987)
  • Stone "Microcomputer Interfacing", Addison-Wesley Publishing company, 1982 pp. 6-1
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