System for automatic color calibration
US6459425B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Aug 25, 1998 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Aug 25, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/69
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for automatic color calibration for a color display is provided having an assembly of a member adjacent the outer periphery of the screen of the display and a color measuring instrument coupled to the member. The system is particularly usefull at a site or node of a network of sites or nodes for distributing and controlling color reproduction. The color measuring instrument includes a sensor spaced from the screen at an angle with respect to the screen for receiving light from an area of the screen. Methods are also provided for maintaining calibration of a color display using a color measuring instrument. Apparatuses are further provided for checking the calibration of a color measurement instrument having a spectrograph for measuring color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.