Display of graphics using a non-all points addressable display
US4556878A · kind A · utility
3Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1983 |
| Grant date | Dec 3, 1985 |
| Priority date | — |
| Expiry date | May 11, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/222
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A processor controlled character box display is provided with apparatus which permits the display of curvilinear graphics. The characters used to generate the graphics display are selected from a limited character set in read only storage (46), but by shifting the characters up or down by less than a full line index to provide additional character positions, it is possible to produce curvilinear graphics without the need for further character generation. Since the graphics display is a low resolution display, it is necessary to make a best dot selection in order to map the print bit map into the character box display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.