A copy-protected optical information carrier and methods for...

G - Physics – 11 – B

Patent

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G11B 7/24 (2006.01) G11B 7/26 (2006.01) G11B 19/12 (2006.01) G11B 20/00 (2006.01) G11B 23/28 (2006.01)

Patent

CA 2468484

Use of an optical information carrier such asa CD-ROM (1) is limited to reading and storing of its content in a single computer device by detachment of a security member (9) bonded to a part (8) of the information or data carrying structures storing control data needed for enabling the computer device to complete reading and storing of the information on the disk. By entry into the computer device of a unique secret identification code carried by the security member (9) the computer device is enabled to resume and complete the reading and storing operations, whereas subsequent attempts of reading and storing of the information with a different computer device will fail due to the unavailability of the control data modified by detachment of the security member (9).

L'emploi d'un support d'information optique tel qu'un CD-ROM (1) se limite à la lecture et au stockage du contenu dans un dispositif informatique unique après retrait d'un élément de sécurité (9) collé sur une partie (8) de structures porteuses d'informations ou de données, structures sur lesquelles figurent les données de commande qui permettant au dispositif information de s'acquitter des opérations de lecture et de stockage de l'information sur le disque. Après entrée dans le dispositif informatique d'un code d'identification secret unique figurant sur l'élément de sécurité (9), ce dispositif informatique est en mesure de reprendre et de terminer les opérations de lecture et de stockage, toute tentative ultérieure de lecture et de stockage d'informations à l'aide d'un dispositif informatique différent étant vouée à l'échec par suite de la non disponibilité de données de commande qui ont été modifiées par le retrait de l'élément de sécurité (9).

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