Color table compression
US9992382B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2017 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Jul 6, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00538
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In some examples, a print cartridge includes a memory device comprising quantized coefficients derived from a compression of a difference table including a plurality of difference nodes in which each difference node represents a value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference table, and a plurality of residue nodes in which each residue node represents a value that is a difference of a value of a node of the color table and a value of a corresponding node of the reconstructed difference table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.