1
Eric M Hoffert, Gavin S P Miller, Lee S Mighdoll, Stephanie L Winner: Method and apparatus for compressing and decompressing color video data with an anti-aliasing mode. Apple Computer, Blakely Sokoloff Taylor & Zafman, September 3, 1991: US05046119 (129 worldwide citation)

An adaptive compression/decompression method for color video data with an anti-aliasing mode. 4.times.4 blocks of pixel data are examined to determine which one of four compression techniques should be used on each block. User settable thresholds can be used to shift the types of compression used. H ...


2
Stephanie L Winner, Michael W Kelley: Method and apparatus for high performance antialiasing which minimizes per pixel storage and object data bandwidth. Apple Computer, Sawyer Law Group, September 5, 2000: US06115049 (65 worldwide citation)

The present invention is an improved system and method of antialiasing which generates a coverage mask which is retained long enough to achieve geometric precision. The coverage mask information is retained throughout the compositing stage of the image generation. A system for antialiasing an image ...


3
Michael W Kelley, Stephanie L Winner: Method and apparatus for storage and retrieval of a texture map in a graphics display system. Apple Computer, Blakely Sokoloff Taylor & Zafman, February 25, 1997: US05606650 (51 worldwide citation)

A method and apparatus for simultaneous retrieval of multiple pixels from a texture map storage means. Multiple texture maps are generated and stored in a modified M/P (multum in pravo--many things in a small space) map form. Even and odd numbered pixels are stored in different memory banks so that ...


4
William G Rivard, Stephanie L Winner, Michael W Kelley: System and method for caching texture map information. Apple Computer, Carr & Ferrell, November 16, 1999: US05987567 (39 worldwide citation)

A system for caching texel information in a cache data store, for use in a graphics rendering system which uses interpolative sampling to compute texture color values. The system includes a texel memory storing texel information, a graphics application program for using interpolative sampling to com ...


5
Stephanie L Winner, Michael W Kelley: Computer graphics system having high performance multiple layer Z-buffer. Apple Computer, Blakely Sokoloff Taylor & Zafman, December 10, 1996: US05583974 (28 worldwide citation)

A method and apparatus for retaining objects having equal Z-values. 1. A method of retaining objects having equal Z-values in a Z-buffer. The Z-buffer includes a first object. The method comprises the steps of: a) receiving a second object having a second Z-value; b) generating a second tag for the ...


6
Michael W Kelley, Stephanie L Winner: Method and apparatus for directly evaluating a parameter interpolation function used in rendering images in a graphics system that uses screen partitioning. Apple Computer, Blakely Sokoloff Taylor & Zafman, December 23, 1997: US05701405 (24 worldwide citation)

A method and apparatus for directly evaluating a parameter interpolation function in a computer graphic system that renders a geometric entity (such as a polygon) by partitioning a display device into a number of local regions. The computer graphic system initially determines that a first set of pix ...


7
Michael W Kelley, Stephanie L Winner: Method and apparatus for approximating a signed value between two endpoint values in a three-dimensional image rendering device. Apple Computer, Blakely Sokoloff Taylor & Zafman, March 28, 1995: US05402533 (15 worldwide citation)

A method and apparatus for providing a correctly signed result of a linear interpolation (LIRP) function in a compute controlled display system. A correctly signed LIRP evaluation may be performed by simply adding a bias to each of the operands of the LIRP function and subtracting the bias to the re ...


8
Stephanie L Winner, Michael W Kelley: Z-buffer storage based on opacity and depth using pointers. Apple Computer, Blakely Sokoloff Taylor & Zafman, July 6, 1999: US05920687 (7 worldwide citation)

A computer graphics system having a processor for generating objects for display, a multi-layered Z-buffer for storing data according to their relative depths, the processor also compositing the data stored in the Z-buffer, a frame buffer for storing composited data, a display for displaying an imag ...