Digital video system
US6580872B1 · kind B1 · utility
45Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2000 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Sep 12, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8227
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The erasion level appending range of a file is instructed. According to this instruction, the erasion level is set. When this setting range does not agree with the cell unit of the current cell, the current cell is divided to set a sequence of divided cells. Playback management information of each of the divided cells and current cell is re-created, and erasion level information is appended to playback management information of the divided cell that belongs to the appending range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.