Method and apparatus for video graphics antialiasing
Patent 6188394 Issued on February 13, 2001. Estimated Expiration Date: 
August 28, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 28, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesApparatus and method for compressing and expanding multibit digital pixel data Storage of compressed data on random access storage devices Method and apparatus for transparently compressing data in a primary storage device Compression and decompression scheme performed on shared workstation memory by media coprocessor Video refresh compression Patent #: 5835082 InventorsAssigneeApplicationNo. 141797 filed on 08/28/1998US Classes:345/555, For storing compressed data345/563, Mask data operation345/611Anti-aliasing or image smoothingExaminersPrimary: Tung, Kee M.Attorney, Agent or FirmInternational ClassG06T 009/00AbstractA method and apparatus for antialiasing in a video graphics system is accomplished by determining if a pixel sample set, which results from oversampling, can be reduced to a compressed sample set, where the compressed sample set contains information describing a corresponding pixel. When the pixel sample set can be reduced to a compressed sample set, the compressed sample set is stored in a frame buffer at a location corresponding to the particular pixel that the sample set describes. When the pixel sample set cannot be reduced to a compressed sample set, a pointer is stored at the frame buffer location corresponding to the particular pixel. The pointer points to a selected address in a sample memory at which the complete sample set for the pixel is stored. | |
