Information recording disc, recording and/or reproducing...

Details Information recording disc, recording and/or reproducing... Information recording disc, recording and/or reproducing...

G - Physics

11

B

G11B 7/013 (2006.01) G11B 20/00 (2006.01) G11B 20/10 (2006.01) G11B 20/12 (2006.01) G11B 20/18 (2006.01)

Patent

CA 2440877

Four ECC blocks are recorded in a burst cutting area of an optical disc. Each ECC block is constituted by a BCA content code of 1 byte, content data length of 1 byte, and content data of 14 bytes. Of the BCA content data, the leading 6 bits are used for application ID and the remaining 2 bits are used for block number. Disc ID is stored in the content data. Since the four ECC blocks exist, the optical disc can be managed individually by four applications at the maximum. Thus it becomes possible to manage the same optical disc by a plurality of applications.

Quatre blocs ECC sont enregistrés dans une zone de coupe de rafales d'un disque optique. Chaque bloc ECC est constitué d'un code contenu BCA d'un octet, d'une longueur de données contenu d'un octet et de données contenu de 14 octets. On utilise les 6 premiers bits des données contenu BCA pour l'identificateur (ID) de l'application et les 2 bits restants pour le numéro de bloc. L'identificateur (ID) du disque est enregistré dans les données contenu. Puisque les quatre blocs ECC existent, le disque optique peut être géré individuellement par maximum quatre applications, ce qui permet la gestion du même disque optique par une pluralité d'applications.

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