Tone reproduction curve linearization
US7948658B2 · kind B2 · utility
1Cited by
10References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2008 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Jul 17, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6033
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A marking device is controlled to mark a media sheet with halftone dots selected from a set of image halftone dot representations. The marking device is controlled to mark a monitored surface with halftone dots selected from a set of control halftone dot representations to form test patches of different nominal marking densities. Measured marking densities are acquired using a density sensor for the test patches marked on the monitored surface. The set of control halftone dot representations is updated based on the measured marking densities and the nominal marking densities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.