Electronic graphic systems
US5225817A · kind A · utility
5Cited by
4References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 9, 1990 |
| Grant date | Jul 6, 1993 |
| Priority date | — |
| Expiry date | Oct 9, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic graphic system is arranged such that data relating to the black separation of an image is made available for modification independently from other data representing the image. In a preferred embodiment black separation data is written into a monochrome framestore 8 and modifications to the separation can be effected by way of a stylus and touch tablet combination 6 and associated drawing circuitry 16.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.