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US6411301B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Graphics system interface

Assignee: Nintendo Co Ltd
•
Filing: 2001-06-22
•
Granted: 2002-06-25
•
Expires: 2021-06-22
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An interface for a graphics system includes simple yet powerful constructs that are easy for an application programmer to use and learn. Features include a unique vertex representation allowing the graphics pipeline to retain vertex state information and to mix indexed and direct vertex values and attributes; a projection matrix value set command; a display list call object command; and an embedded frame buffer clear/set command.

Inventors

  • 👤 Vimal Parikh
  • 👤 Robert Moore
  • 👤 Howard Cheng

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 15:01
CPC Classifications
G; G06; G06T; G06T17/00

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 100 words
A graphics system command stream for use in a graphics system having a transform unit, the command stream being operable upon execution to load a projection matrix into the transform unit, the command stream comprising: a bit pattern “00010000”, followed by a pad, followed by a 21-bit value including sixteen bits of address indicating a transform unit register location and an additional five bits indicating how many words will follow, followed by at least one additional 32-bit word providing a projection matrix element value, wherein upon execution of the command stream the projection matrix is loaded into the transform unit.
Claim 2
Dependent Claim 100 words
A graphics system command stream for use in a graphics system having a transform unit, the command stream being operable upon execution to load a projection matrix into the transform unit, the command stream comprising: a bit pattern “00010000”, followed by a pad, followed by a 21-bit value including sixteen bits of address indicating a transform unit register location and an additional five bits indicating how many words will follow, followed by at least one additional 32-bit word providing a projection matrix element value, wherein upon execution of the command stream the projection matrix is loaded into the transform unit.
Claim 3
Dependent Claim 82 words
A computer readable storage medium encoded with executable instructions for loading a projection matrix into a transform unit comprising: a bit pattern “00010000”, followed by a pad, followed by a 21-bit value including sixteen bits of address indicating a transform unit register location and an additional five bits indicating how many words will follow, followed by at least one additional 32-bit word providing a projection matrix element value, wherein execution of the encoded instructions loads the projection matrix into the transform unit.
Claim 4
Dependent Claim 82 words
A computer readable storage medium encoded with executable instructions for loading a projection matrix into a transform unit comprising: a bit pattern “00010000”, followed by a pad, followed by a 21-bit value including sixteen bits of address indicating a transform unit register location and an additional five bits indicating how many words will follow, followed by at least one additional 32-bit word providing a projection matrix element value, wherein execution of the encoded instructions loads the projection matrix into the transform unit.
Claim 5
Dependent Claim 77 words
A graphics command stream decoder comprising: a first decoding section decoding a bit pattern “00010000”, followed by a second decoding section decoding a pad, followed by a third decoding section decoding a 21-bit value including sixteen bits of address indicating a transform unit register location and an additional five bits indicating how many words will follow, followed by at least one additional decoding section decoding at least one additional 32-bit word providing a projection matrix element value.
Claim 6
Dependent Claim 77 words
A graphics command stream decoder comprising: a first decoding section decoding a bit pattern “00010000”, followed by a second decoding section decoding a pad, followed by a third decoding section decoding a 21-bit value including sixteen bits of address indicating a transform unit register location and an additional five bits indicating how many words will follow, followed by at least one additional decoding section decoding at least one additional 32-bit word providing a projection matrix element value.
Claim 7
Independent Claim 86 words
A method of loading a projection matrix into a transform unit using a graphics command stream, the method comprising: generating a bit pattern “00010000”, then generating a pad, then generating a 21-bit value including sixteen bits of address indicating a transform unit register location and an additional five bits indicating how many words will follow, then generating at least one additional 32-bit word providing a projection matrix element value, wherein upon execution of the graphics command stream the projection matrix is loaded into the transform unit.
Claim 8
Independent Claim 86 words
A method of loading a projection matrix into a transform unit using a graphics command stream, the method comprising: generating a bit pattern “00010000”, then generating a pad, then generating a 21-bit value including sixteen bits of address indicating a transform unit register location and an additional five bits indicating how many words will follow, then generating at least one additional 32-bit word providing a projection matrix element value, wherein upon execution of the graphics command stream the projection matrix is loaded into the transform unit.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2005-06-24 2005-12-24 2006-06-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2009-06-24 2009-12-24 2010-06-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2013-06-24 2013-12-24 2014-06-25 $7700.00 Window Closed / Lapsed

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