Special purpose memory for graphics and display apparatus using the special purpose memory for graphics
US5801706A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1995 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Apr 20, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/395
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A three-dimensional graphic display apparatus performs hidden surface removal and color blending. Particularly, the graphic display apparatus includes a configuration of a special purpose memory for graphics, thereby forming a configuration of a graphic display apparatus using the special purpose memory. The special purpose memory for graphics includes a memory cell holding intensity information (RGB) and window information about each pixel, an XY coordinate converter converting XY coordinates of a pixel to be written to a memory address, an intensity blending processor, and hidden-surface removal and window comparators, all of which are formed on the same chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.