Method and device for forming a derived digital signal from a compressed digital signal
US7113643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2002 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Dec 26, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of forming a derived digital signal from a compressed digital signal which has been obtained by compressing an original digital signal including original data representing physical quantities and grouped together in blocks of data ordered in the original signal. The method includes obtaining information contained in the compressed digital signal and representing the structure of the signal and the organization of the data therein, and from the information, forming a skeleton of the derived digital signal which at least partly includes this information and at least one leader and one body intended to subsequently contain compressed blocks of data, the skeleton thus formed being in accordance with a description syntax of the compressed signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.