System and method for maintaining DVD-subpicture streams upon conversion to higher compressed data format
US7778526B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2004 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Jun 16, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8227
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for generating a file container, the file container having a main structure for sample data and substructures for information data wherein the structures are defined in accordance with a standard of the second format, the standard defining a fixed number of data handler types, each data handler type declaring a process by which sample data are to be presented; converting the audio/video data to the second format including the step of generating audio/video sample data from the audio/video data and information on position and size of the audio/video sample data within the main structure; storing the audio/video sample data in the main structure, wherein the information on position and size of the audio/video sample data within the main structure is stored in a substructure for audio/video data; defining a substructure for subpicture data in accordance with the standard such that the subpicture data are storable as subpicture sample data in the main structure, wherein the substructure for subpicture data is adapted for providing information on position and size of the subpicture sample data, and is adapted for presenting a data handler type being undefined in the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.