Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2008-07-29
2008-07-29
Bella, Matthew C. (Department: 2624)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
C345S589000, C345S582000
Reexamination Certificate
active
07405735
ABSTRACT:
An image rendering apparatus is provided to reduce the amount of data communicated between a shader and a texture unit. The texture unit performs a texture mapping operation for mapping a texture to an object in a three-dimensional space. An input unit receives a single texture address parameter from the shader unit. A coordinate generation unit generates a plurality of texel coordinates based on the texture address parameter. A retrieval unit retrieves a plurality of texel values corresponding respectively to the plurality of generated texel coordinates in a texture cache or in an external texture buffer. An output unit outputs the retrieved texel values to the shader unit in a batch. Since a plurality of texel values are read from a single texture address parameter input, the bandwidth for communications from the shader to the texture unit may be saved.
REFERENCES:
patent: 5767858 (1998-06-01), Kawase et al.
patent: 5877770 (1999-03-01), Hanaoka
patent: 7034828 (2006-04-01), Drebin et al.
patent: 2003/0164838 (2003-09-01), Guo et al.
patent: 2005/0088450 (2005-04-01), Chalfin et al.
patent: 2006/0202990 (2006-09-01), Barenbrug et al.
patent: 8-212357 (1996-08-01), None
patent: 8-320946 (1996-12-01), None
patent: 2003-115056 (2003-04-01), None
Notification of Reason(s) for Refusal dated Jul. 24, 2007, from the corresponding Japanese Application.
Michael D. McCool, et al., “Texture Shaders”, Aug. 8, 1999, pg.(s) 117-126,144, Proceedings 1999 Eurographics / Siggraph Workshop on Graphics Hardware, Los Angeles, CA, U.S., Aug. 8-9, 1999.
James F. Blinn, et al., “Texture and Reflection in Computer Generated Images”, Graphics and Image Processing, October 1976, pg.(s) 542-547, vol. 19, No. 10, Association for Computing Machinery, Inc.
European Search Report and Annex to the European Search report dated Jan. 24, 2008 for corresponding European Application EP 05 00 5992.
Bella Matthew C.
Katten Muchin & Rosenman LLP
Rahmjoo Mike
Sony Computer Entertainment Inc.
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