Digital stroke generator
US4742343A · kind A · utility
2Cited by
7References
6Claims
0Family size
Inventor
Key dates
| Filing date | Dec 10, 1985 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Dec 10, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital stroke generator reads and writes discrete stroke segments in a display memory. The generator comprises principally a line address register, a column address register, a command addresser, a counter and it may also include a data register. The command addresser which commands the incrementation and decrementation of the address registers comprises an octant register, a direction register in which the vector direction is memorized according to the ROTHMAN code and a transcoding matrix. The counter counts down the image points making up the vector to be drawn and blocks the processor when the count down is finished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.