Patents
From xboxdevwiki
Here a list of patents that might be related to the NV2A GPU for the original Xbox:
- Filed 1997-11-25 by nVidia: https://www.google.com/patents/US6697063 "Rendering pipeline"
- Filed 1998-12-23 by Microsoft: https://www.google.com/patents/US6417858 "Processor for geometry transformations and lighting calculations"
- Filed 1999-12-06 by nVidia: https://www.google.com/patents/US6198488 "Transform, lighting and rasterization system embodied on a single semiconductor platform"
- Filed 1999-12-06 by nVidia: https://www.google.com/patents/US6573900 "Method, apparatus and article of manufacture for a sequencer in a transform/lighting module capable of processing multiple independent execution threads"
- Filed 1999-12-06 by nVidia: https://www.google.com/patents/US6765575 "Clip-less rasterization using line equation-based traversal"
- Filed 1999-12-06 by nVidia: https://www.google.com/patents/US6650325 "Method, apparatus and article of manufacture for boustrophedonic rasterization"
- Filed 2000-12-05 by nVidia: https://www.google.com/patents/US6690372 "System, method and article of manufacture for shadow mapping"
- Filed 2001-06-19 by nVidia: https://www.google.com/patents/US6870540 "System, method and computer program product for a programmable pixel processing model with instruction set"
- Filed 2002-06-07 by Microsoft: https://www.google.com/patents/US6907522 "Use of hashing in a secure boot loader " (mentions the NV2A directly)
