Color picture display apparatus
US4962418A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1988 |
| Grant date | Oct 9, 1990 |
| Priority date | — |
| Expiry date | Jun 30, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/73
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a color picture display apparatus for monitoring colors of a picture displayed on a display such as a CRT based on picture signals picked up by a imaging camera, in which a signal processor operates luminous characteristics such as chromaticity and luminance of the actual display, obtained with reference to reference color signals, and ideal luminous characteristics such as chromaticity and reference white chromaticity of an ideal display to obtain correction values, and a corrector corrects the picture signals on the basis of the correction values to obtain corrected picture signals to be fed to the display for displaying a corrected picture. The correction values may be stored in a memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.