Method and apparatus for initializing optical disk drive apparat

Details Method and apparatus for initializing optical disk drive apparat Method and apparatus for initializing optical disk drive apparat

1991-09-06

1993-09-28

Psitos, Aristotelis

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4428, 369 4425, 369 32, 369 58, 360 7804, 360 7814, G11B 5596, G11B 708

Patent

active

052491684

ABSTRACT:
A method and apparatus for initializing disk drive apparatus wherein a pickup head is positioned near the mid-range of tracks on a disk by moving the head at power-on to an innermost track and thereafter moving the head outwardly. As outward movement begins, a tracking error signal is sensed to indicate a track crossing, and the number of tracks crossed are counted until the head is at the mid-range of tracks. A velocity profile is used to speed movement of the head to its destination.

REFERENCES:
patent: 5034941 (1991-07-01), Kasai et al.
patent: 5063549 (1991-11-01), Yamamuro

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