Signal processing apparatus and method, and program
US7616812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2005 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Aug 7, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Signals are provided which allow colors in a wider color range than predetermined standards, which can be handled by apparatus according to such predetermined standards. A primary color converter converts first color signals having primary color points in a wider color range than the primary color points according to BT.709 into second color signals based on the primary colors according to BT.709. A photoelectric transducer converts the second color signals into third color signals according to photoelectric transducer characteristics defined in a numerical range wider than a range from 0 to 1.0 of color signals corresponding to a luminance signal and color difference signals according to BT. 709. A color signal converter converts the third color signals into a luminance signal and color difference signals. A corrector incorporated in the color signal converter corrects the color difference signals into color difference signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.