Dynamic information storage or retrieval – With particular cabinet structure – Slotted for edgewise insertion of storage disc
Patent
1994-01-06
1995-12-05
Tupper, Robert S.
Dynamic information storage or retrieval
With particular cabinet structure
Slotted for edgewise insertion of storage disc
360 9907, G11B 1704, G11B 3302
Patent
active
054735939
ABSTRACT:
A CD-ROM drive unit includes a disk transport tray moved between an open position, in which a compact disk, exposed outside the drive unit, can be removed and replaced, and a closed position, in which data can be read. The drive unit also includes a disk reading mechanism, which rotates the disk, and which moves an optical sensor along the disk as required for reading information from the disk. Motions obtained from this disk reading mechanism are used to drive the disk transport tray between the positions. In a first version of the device, a spindle motor drives a spindle, on which a disk is placed, in a forward direction to effect reading data and in a reverse direction to effect movement of the disk transport tray. A one-way clutch is used to discriminate between driver directions, only operating a mechanism to move the tray when the spindle motor is driving in reverse. In a second version of the device, a mechanism moving the tray is locked to a carrier moving the optical sensor after a solenoid causes a pawl to pivot.
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buchenhorner M. J.
International Business Machines - Corporation
Klimowicz William J.
McConnell D. E.
McKinley M. J.
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