System for improving two-color display operations
US5132670A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1989 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Oct 30, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/39
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system is disclosed which reduces significantly the time for processing multi-bit two-color data for display. The system generates multi-bit two-color data by expanding single-bit monochromatic data, and provides three types of output data: a first expanded multi-bit color data, a second expanded multi-bit color data, and a third unchanged multi-bit data, the unchanged data being combinable with other data for producing data overlays. The system comprises a data expansion circuit for maintaining selected data unchanged and for expanding selected single-bit data to multi-bit two-color data, a memory for storing multi-bit data, and a data compression circuit for compressing selected multi-bit data to single-bit data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.