Electronic screening
US4040094A · kind A · utility
31Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1975 |
| Grant date | Aug 2, 1977 |
| Priority date | — |
| Expiry date | Aug 13, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4056
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention relates to a method and apparatus for the electronic screening of a graphic image to be reproduced by printing. The density of the graphic image is determined repetitively during the digital generation of each dot which will form a part of the half-tone image when produced, and the dot is modified according to changes in the density. Thus the structure of any half-tone dot may be modified during its construction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.