First surface removable optical disc within a cartridge
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United States of America Patent
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-
Mar 22, 2011
Grant Date -
Dec 28, 2006
app pub date -
May 30, 2006
filing date -
May 20, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A user-removable optical data storage system is provided. A rotatable first-surface medium is enveloped in a cartridge. 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×35 mm×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 Preferably the cartridge substantially seals the data surfaces of the medium when the cartridge is withdrawn from a drive and at least a portion of one surface is automatically exposed to the objective of an optics arm when said cartridge is inserted in the drive. Tracking involves rotating an optic arm about an axis parallel to the disk rotation axis. Focus can involve pivoting the arm about an axis parallel to the disk surface.
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