Copy restriction method and apparatus which restrict copying of data from optical recording medium to another recording medium and copy-restricted optical recording medium
US6510118B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1999 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Jun 7, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/00876
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A copy restriction method which imposes a restriction on copying data from a data recording region of an optical recording medium to another medium. A member removable by a user is attached to the data recording region. The copying is performed by an apparatus including a storage unit which stores information indicating a position of a member attached to the data recording region. The copy restriction method includes: a detecting step for detecting a position of the member attached on the data recording region and outputting information indicating the detected position; a judging step for judging whether the information output in the detecting step and the information stored in the storage unit indicate the same position; an instructing step for instructing the user to detach the member from the data recording region when it is judged so in the judging step; a checking step for checking whether the member has been detached after the user is instructed to detach; and an executing step for executing copying of the data from the data recording region of the optical recording medium to the other medium only when it is confirmed in the checking step that the member has been detached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.