Printing plates containing ink cells in both solid and halftone areas
US6731405B2 · kind B2 · utility
22Cited by
19References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Feb 4, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4055
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method, associated software and resulting printing plate having both solid and halftone areas comprising ink cells. Ink cells may be provided in the solid areas according to a first pattern with a first density and size of cells per unit area, and in the halftone areas superposed on selected numbers of halftone dots. The selection of halftone dots with superposed ink cells may be according to a second pattern with a second density and size of cells in the halftone area that is a function of halftone dot size and that may or may not be related to the first pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.