Management apparatus, editing apparatus, recording medium,...

H - Electricity – 04 – L

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Details

H04L 9/00 (2006.01) G11B 19/12 (2006.01) G11B 20/00 (2006.01) G11C 7/16 (2006.01) H04K 1/00 (2006.01) H04L 9/32 (2006.01)

Patent

CA 2373641

A management apparatus (FIG. 1) stores pairs of copyrighted contents and numbers of permitted check-outs. On being requested to perform check-out for a semiconductor memory card, the management apparatus records an audio object (AOB) corresponding to a content in the semiconductor memory card, assigns a content ID to the AOB, and decrement a corresponding number of permitted check- outs. An editing and playback apparatus edits the AOB and assigns a content ID, which is the same as the content ID of the original AOB, to each new AOB obtained by the editing. A local storage holds history information including a media ID and the content ID assigned to the original AOB. On being requested to perform check-in for the semiconductor memory card, the management apparatus sets, in a non-playable state, the AOB assigned a content ID that is the same as the content ID in the history information and increments the number of permitted check-outs.

L'invention concerne un appareil de gestion stockant des contenus protégés par un droit d'auteur, et un certain nombre de vérifications autorisées. Lorsqu'on lui demande d'effectuer une vérification de carte mémoire de semi-conducteur, l'appareil de gestion enregistre un objet audio correspondant à un contenu dans ladite carte mémoire de semi-conducteur, attribue un identificateur de contenu à l'objet audio, et décrémente un nombre correspondant de vérifications autorisées. Un appareil de lecture et d'édition édite l'objet audio, et attribue un identificateur de contenu identique à celui de l'objet audio original à chaque nouvel objet audio obtenu par édition. Un stockage local conserve les informations d'histoire notamment un identificateur de support, et l'identificateur de contenu attribué à l'objet audio original. Lorsqu'on lui demande d'effectuer une vérification de carte mémoire de semi-conducteur, l'appareil de gestion définit, de manière non lisible, l'identificateur de contenu attribué à l'objet audio identique à celui des informations d'histoire, et incrémente le nombre de vérifications autorisées.

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