Digital recording system using variable recording rate
US7289723B2 · kind B2 · utility
6Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2002 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Oct 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8227
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An erase prohibition setting unit sets erase prohibition in accordance with an instruction. When the range is not set in units of cells of the current cell, the current cell is divided by a cell separator to set a sequence of advanced cells. A reconstruction part reconstructs management information for playing back the advanced cells and current cell, and appends erase prohibition information to the management information for playing back the advanced cells that belong to the range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.