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Class Information
Number: 345/422
Name: Computer graphics processing, operator interface processing, and selective visual display systems > Computer graphics processing > Three-dimension > Hidden line/surface determining > Z buffer (depth buffer)
Description: Subject matter wherein a memory having locations corresponding to display locations stores distance information* which is used to determine which objects or portions of objects are hidden.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6157387 |
Image generating apparatus and method |
Dec. 5, 2000 |
| 6157987 |
Pixel engine data caching mechanism |
Dec. 5, 2000 |
| 6115049 |
Method and apparatus for high performance antialiasing which minimizes per pixel storage and object data bandwidth |
Sep. 5, 2000 |
| 6115047 |
Method and apparatus for implementing efficient floating point Z-buffering |
Sep. 5, 2000 |
| 6111582 |
System and method of image generation and encoding using primitive reprojection |
Aug. 29, 2000 |
| 6104407 |
Method and apparatus for processing fragment pixel information in a three-dimensional graphics processing system |
Aug. 15, 2000 |
| 6104406 |
Back away navigation from three-dimensional objects in three-dimensional workspace interactive displays |
Aug. 15, 2000 |
| 6104842 |
Geometry processing of digital video models and images |
Aug. 15, 2000 |
| 6104402 |
Image creating apparatus and image display apparatus |
Aug. 15, 2000 |
| 6094198 |
System and method for reconstructing surface elements of solid objects in a three-dimensional scene from a plurality of two dimensional images of the scene |
Jul. 25, 2000 |
| 6094200 |
System and method for accelerated occlusion culling |
Jul. 25, 2000 |
| 6091428 |
Frame buffer memory system for reducing page misses when rendering with color and Z buffers |
Jul. 18, 2000 |
| 6088035 |
Method for displaying a graphic model |
Jul. 11, 2000 |
| 6084591 |
Method and apparatus for deferred video rendering |
Jul. 4, 2000 |
| 6084599 |
Graphics drawing device with hidden surface processing |
Jul. 4, 2000 |
| 6078336 |
Graphics memory system that utilizes look-ahead paging for reducing paging overhead |
Jun. 20, 2000 |
| 6075544 |
Method and apparatus for accelerating rendering by coalescing data accesses |
Jun. 13, 2000 |
| 6057847 |
System and method of image generation and encoding using primitive reprojection |
May. 2, 2000 |
| 6052125 |
Method for reducing the rendering load for high depth complexity scenes on a computer graphics display |
Apr. 18, 2000 |
| 6046746 |
Method and apparatus implementing high resolution rendition of Z-buffered primitives |
Apr. 4, 2000 |
| 6043820 |
Perspective projection calculation devices and methods |
Mar. 28, 2000 |
| 6040844 |
Apparatus and method for storing and accessing picture generation data |
Mar. 21, 2000 |
| 6037946 |
Image synthesis apparatus and image synthesis method |
Mar. 14, 2000 |
| 6018350 |
Illumination and shadow simulation in a computer graphics/imaging system |
Jan. 25, 2000 |
| 6016151 |
3D triangle rendering by texture hardware and color software using simultaneous triangle-walking and interpolation for parallel operation |
Jan. 18, 2000 |
| 6005967 |
Picture synthesizing apparatus and method |
Dec. 21, 1999 |
| 6002973 |
Process for changing an electronic memory for use-related data of a vehicle |
Dec. 14, 1999 |
| 5990902 |
Apparatus and method for prefetching texture data in a video controller of graphic accelerators |
Nov. 23, 1999 |
| 5986662 |
Advanced diagnostic viewer employing automated protocol selection for volume-rendered imaging |
Nov. 16, 1999 |
| 5982376 |
Three-dimensional graphic display apparatus with improved high-speed anti-aliasing |
Nov. 9, 1999 |
| 5982398 |
Image processing device |
Nov. 9, 1999 |
| 5977979 |
Simulated three-dimensional display using bit-mapped information |
Nov. 2, 1999 |
| 5977980 |
Method and apparatus for determining visibility of a pixel |
Nov. 2, 1999 |
| 5974423 |
Method for converting a digital elevation database to a polygon database |
Oct. 26, 1999 |
| 5953014 |
Image generation using three z-buffers |
Sep. 14, 1999 |
| 5949423 |
Z buffer with degree of visibility test |
Sep. 7, 1999 |
| 5943038 |
Liquid crystal display panel |
Aug. 24, 1999 |
| 5940067 |
Reduced memory indexed color graphics system for rendered images with shading and fog effects |
Aug. 17, 1999 |
| 5933156 |
Z-Buffer for row addressable graphics memory with flash fill |
Aug. 3, 1999 |
| 5933147 |
Computer graphics memory architecture which processes a full pixel of 3D color and z value data in a single I/O transaction |
Aug. 3, 1999 |
| 5926181 |
Method and apparatus for identifying and eliminating three-dimensional objects visually obstructed from a planar surface |
Jul. 20, 1999 |
| 5926184 |
Polygon sorting ordered by grouping according to distances in sorting groups |
Jul. 20, 1999 |
| 5923333 |
Fast alpha transparency rendering method |
Jul. 13, 1999 |
| 5920320 |
Three-dimensional shape data transforming apparatus |
Jul. 6, 1999 |
| 5920687 |
Z-buffer storage based on opacity and depth using pointers |
Jul. 6, 1999 |
| 5917496 |
Special purpose memory for graphics and display apparatus using the same |
Jun. 29, 1999 |
| 5914721 |
Visibility calculations for 3D computer graphics |
Jun. 22, 1999 |
| 5896134 |
Z buffer hidden surface removal device |
Apr. 20, 1999 |
| 5880735 |
Method for and apparatus for transparency conversion, image processing system |
Mar. 9, 1999 |
| 5877768 |
Method and system using a sorting table to order 2D shapes and 2D projections of 3D shapes for rendering a composite drawing |
Mar. 2, 1999 |
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