Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2011-05-24
2011-05-24
Sajous, Wesner (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
C345S421000, C345S428000, C345S606000, C345S552000, C382S254000, C382S260000, C382S274000, C382S300000, C358S525000
Reexamination Certificate
active
07948500
ABSTRACT:
A multi-threaded graphics processor is configured to use to extrapolate low resolution mipmaps stored in physical memory to produce extrapolated texture values while high resolution nonresident mipmaps are retrieved from a high latency storage resource and converted into resident mipmaps. The extrapolated texture values provide an improved image that appears sharper compared with using the low resolution mipmap level texture data in place of the temporarily unavailable high resolution mipmap level texture data. An extrapolation threshold LOD is used to determine when extrapolated magnification or minification texture filtering is used. The extrapolation threshold LOD may be used to smoothly transition from using extrapolated filtering to using interpolated filtering when a nonresident mipmap is converted to a resident mipmap.
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Nvidia Corporation
Patterson & Sheridan LLP
Sajous Wesner
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