Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Patent
1998-02-12
1999-02-16
Edun, Muhammad N.
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
369 58, G11B 700
Patent
active
058727531
ABSTRACT:
An optical disk driving apparatus comprises an optical pickup device having a laser beam source for emitting a laser beam to a disk recording medium, a unit for rotating the disk recording medium such that a linear velocity of a track on the recording medium accessed by the optical pickup device becomes a predetermined value, a unit for translating the optical pickup device along a radius of the disk recording medium in accordance with a seek signal indicative of the track to be accessed by the optical pickup device, and a unit responsive to the seek signal for controlling both the translating unit and the rotating unit, the translating means being prevented from translating the optical pickup device during a period until the linear velocity of the track desired by the seek signal on the disk recording medium reaches down to a value determined by the linear velocity of the desired track when the seek signal represents the order to transfer the optical pickup device from inner to outer tracks of the disk.
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Edun Muhammad N.
Sony Corporation
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