Method and apparatus for on-press color measurement
US5543922A · kind A · utility
10Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1994 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Oct 19, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6044
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color measurement system includes a measurement patch utilizable on a continuous sample of color printed matter. The patch has a first predefined shape with a color reference area centrally located on the patch and a high contrast feature located proximate to an edge of the patch. A camera scans the sample and generates a location signal upon detection of the high contrast feature which permits accurate positioning of a measurement sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.