Methods and devices for recording marks on a recording...

Details Methods and devices for recording marks on a recording... Methods and devices for recording marks on a recording...

G - Physics

11

B

G11B 7/125 (2006.01) G11B 7/0045 (2006.01)

Patent

CA 2379051

The invention relates to methods and devices for forming marks and lands by applying a radiation beam (32) to a recording surface (301) of an optical record carrier (30). Recording strategies are proposed for recording information at high recording speeds. An intermediate power level (P1, P2) is introduced in between the bottom power level (P0) and the write power level (Pw), its value being dependent on the length of the preceding land (151, 152, 153). A raised write power level (PR1, PR2) is also proposed, its value being dependent on the length of the mark to be recorded (241, 242, 243).

La présente invention concerne des procédés et des dispositifs permettant de former des marques et des intervalles entre les marques en appliquant un faisceau de rayonnement (32) sur la surface d'enregistrement (301) d'un support d'enregistrement optique (30). L'invention se rapporte à des stratégies d'enregistrement permettant d'enregistrer des informations à de grandes vitesses d'enregistrement. On introduit, entre le niveau de puissance inférieure (P¿0?) et le niveau de puissance d'écriture (P¿w?), un niveau de puissance intermédiaire (P¿1?, P¿2?) dont la valeur dépend de la longueur de l'intervalle précédent (151, 152, 153). L'invention se rapporte également à un niveau de puissance d'écriture haussé (P¿R1?, P¿R2?) dont la valeur dépend de la longueur de la marque à enregistrer (241, 242, 243).

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