Record carrier comprising encryption indication information
US7607024B2 · kind B2 · utility
10Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2004 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Aug 26, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/284
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A record carrier, recording device, read-out device and method is provided which provides a flexible security level to protect user data during transmission over a communication bus, also when the data is recorded on a record carrier such as a recordable optical disc. In accordance with the method, management information comprising encryption indication information indicating that user data stored in an associated sector of a record carrier, such as a recordable optical disk, is to be encrypted by a read-out device before being transmitted over a communication bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.