Method for reproducing color images which are distinguishable in a document having only two colors
US4907078A · kind A · utility
8Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 13, 1988 |
| Grant date | Mar 6, 1990 |
| Priority date | — |
| Expiry date | Jun 13, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of processing information on color images wherein light rays produced by irradiating a color document are split into light rays of two different wavelengths. The two types of light rays obtained in this way are converted into more than four types of output signals which are developed in different colors in accordance with the volumes of light and/or the wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.