| Patent application number | Description | Published |
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| 20080284786 | Display System Having Floating Point Rasterization and Floating Point Framebuffering - A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data. | 11-20-2008 |
| 20100079471 | Display System Having Floating Point Rasterization and Floating Point Framebuffering - A floating point rasterization and frame buffer in a computer system graphics program. The rasterization, fog, lighting, texturing, blending, and antialiasing processes operate on floating point values. In one embodiment, a 16-bit floating point format consisting of one sign bit, ten mantissa bits, and five exponent bits (s10e5), is used to optimize the range and precision afforded by the 16 available bits of information. In other embodiments, the floating point format can be defined in the manner preferred in order to achieve a desired range and precision of the data stored in the frame buffer. The final floating point values corresponding to pixel attributes are stored in a frame buffer and eventually read and drawn for display. The graphics program can operate directly on the data in the frame buffer without losing any of the desired range and precision of the data. | 04-01-2010 |
| Patent application number | Description | Published |
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| 20090244074 | Apparatus, System, and Method For Using Page Table Entries in a Graphics System to Provide Storage Format Information For Address Translation - A graphics system utilizes page table entries to provide information on the storage format used to store graphics data. The page table entries, in turn, may be used for address translation. Exemplary kinds of storage format information include compression mode, a packing mode for storing Z data in tiles or color data in tiles, and a mode for allocating tile data among partitions in a partitioned memory. | 10-01-2009 |
| 20110078537 | ERROR DETECTION AND CORRECTION FOR EXTERNAL DRAM - One embodiment of the present invention sets forth a technique for protecting data with an error correction code (ECC). The data is accessed by a processing unit and stored in an external memory, such as dynamic random access memory (DRAM). Application data and related ECC data are advantageously stored in a common page within a common DRAM device. Application data and ECC data are transmitted between the processor and the external common DRAM device over a common set of input/output (I/O) pins. Eliminating I/O pins and DRAM devices conventionally associated with transmitting and storing ECC data advantageously reduces system complexity and cost. | 03-31-2011 |
| 20110078544 | Error Detection and Correction for External DRAM - One embodiment of the present invention sets forth a technique for protecting data with an error correction code (ECC). The data is accessed by a processing unit and stored in an external memory, such as dynamic random access memory (DRAM). Application data and related ECC data are advantageously stored in a common page within a common DRAM device. Application data and ECC data are transmitted between the processor and the external common DRAM device over a common set of input/output (I/O) pins. Eliminating I/O pins and DRAM devices conventionally associated with transmitting and storing ECC data advantageously reduces system complexity and cost. | 03-31-2011 |
