Information recording medium, integrated circuit,...

G - Physics – 11 – B

Patent

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G11B 7/007 (2006.01) G11B 7/004 (2006.01) G11B 7/085 (2006.01) G11B 7/09 (2006.01) G11B 7/24 (2006.01)

Patent

CA 2560452

A device enabled to prevent an increase in a starting time period even in the presence of both disks having a recording groove track and a recording land track. An optical disk (101) is of the type for recording in the groove track, and an optical disk (107) is of the type for recording in the land track. These individual optical disks (101, 107) are provided with control data areas (102, 108) and data recording areas (103, 109) for recording user data. In both the optical disks (101, 107), the control data areas (102, 108) have codes recorded therein for indicating which track is to be tracking-servoed.

Dispositif permettant d~empêcher une augmentation d~un intervalle de temps de démarrage même en présence des deux disques, ayant une piste de rainure d~enregistrement et une piste de pastille d~enregistrement. Un disque optique (101) est du type approprié pour un enregistrement dans la piste de rainure et un disque optique (107) est du type approprié pour un enregistrement dans la piste de pastille. Ces disques optiques individuels (101, 107) sont pourvus de zones de données de commande (102, 108) et de zones d~enregistrement de données (103, 109) pour enregistrer des données d~utilisateur. Dans les deux disques optiques (101, 107), les zones de données de commande (102, 108) comprennent des codes enregistrés pour indiquer quelle piste doit être asservie au suivi de piste.

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