Removable optical storage device and system

G - Physics – 11 – B

Patent

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Details

G11B 3/70 (2006.01) G11B 7/085 (2006.01) G11B 7/12 (2006.01) G11B 7/24 (2006.01) G11B 17/04 (2006.01) G11B 17/16 (2006.01) G11B 19/00 (2006.01) G11B 33/02 (2006.01) G11B 7/007 (2006.01) G11B 7/125 (2006.01) G11B 7/135 (2006.01)

Patent

CA 2371370

A user-removable optical data storage system is provided. A rotatable first- surface medium (114) is enveloped in a cartridge (124, 126). The cartridge provides relatively large data capacity such as about 0.25 Gbytes or more despite a relatively small size such as about 35 mm X 35 mm X 3 mm. Preferably the cartridge substantially seals the data surfaces of the medium when the cartridge is withdrawn from a drive and at least a portion of a surface is automatically exposed to the objective of an optics arm when the cartridge is inserted in the drive. Tracking involves rotating an optic arm (236) about an axis parallel to the disk rotation axis (237). Focus can involve pivoting the arm about an axis parallel to the disk surface.

L'invention concerne un système optique de stockage de données remplaçable par l'utilisateur. Un support comportant une première surface rotative est enfermée dans une cartouche possédant une capacité de stockage de données relativement importante (au moins 0,25 Gbytes) malgré une taille relativement réduite (environ 35 mm X 35 mm X 3 mm). De préférence, la cartouche obstrue sensiblement les surfaces de stockage de données du support lorsqu'elle est retirée d'un lecteur de disque, et au moins une partie d'une surface est automatiquement exposée à l'objectif d'un bras optique lorsque la cartouche est insérée dans le lecteur. L'alignement est obtenu par rotation d'un bras optique autour d'un axe parallèle à l'axe de rotation du disque. La focalisation peut être obtenu par pivotement du bras autour d'un axe parallèle à la surface du disque.

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