Apparatus and method for producing color half-tone images
US5416612A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1992 |
| Grant date | May 16, 1995 |
| Priority date | — |
| Expiry date | Nov 6, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/2054
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for producing a color half-tone image from a digital data file are disclosed. The method includes the step of filling a pattern of dots for each of a plurality of colors, wherein the configuration and size of dots in a macropixel varies as a function of input density for each of the plurality of colors. The step of filling includes the step of producing a plurality of multiple droplet dots in less than the total available pixel locations in a macropixel in at least part of a range of input densities. The apparatus performs the operations of the method. The pixels are of variable size as a function of the number of droplets deposited at the pixel locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.