Graphic display processing apparatus and method for improving the speed and efficiency of a window system
US5353403A · kind A · utility
16Cited by
2References
21Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 23, 1992 |
| Grant date | Oct 4, 1994 |
| Priority date | — |
| Expiry date | Mar 23, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/24
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A graphic display processing apparatus which includes having a CPU, a VRAM and a display controller, a data operation unit, an access cycle generator, an address generator and a sequential transfer sequencer. The graphic display processing apparatus also includes a mask pattern generator, dot mask generator and data position transformer. In the graphic display processing apparatus block transfer and character drawing are performed at high speeds, thereby making a window system more practical and offering comfortable operational environment to the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.