Decoder devices, methods and computer programs
US11277625B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2019 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Mar 12, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/44
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A decoder device receives data useable to generate data for representing a data signal at a first level of quality. The decoder device receives enhancement data useable to generate data for representing the data signal at a second, higher level of quality based on the data for representing the data signal at the first level of quality. The decoder device generates data for representing a target region of the data signal at a target level of quality using a selected portion of the received enhancement data. The selected portion is associated with the target region. The target level of quality is higher than the first level of quality. The decoder device generates data for representing a further region of the data signal at a level of quality that is lower than the target level of quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.