Data-file storage, particularly for MPEG format files
US7295764B2 · kind B2 · utility
5Cited by
5References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2002 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Jun 22, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of storing a data file, particularly in the MPEG format and including a flow of different frames, comprises a protection system for the data file based on a parameter stored in the data file. Advantageously, the storage method comprises selectively protecting the frames by storing parameters that are associated with corresponding different frames whose values are selected to provide a playing quality level requested by an end user. Also, a method is provided for decoding a data file, particularly of the MPEG type and including a flow of different frames, wherein the data file is stored per above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.