Optical disk drive apparatus having counter disable at seek star

Details Optical disk drive apparatus having counter disable at seek star Optical disk drive apparatus having counter disable at seek star

1988-04-22

1990-09-04

McElheny, Jr., Donald

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

G11B 1902

Patent

active

049550098

ABSTRACT:
In an optical disk drive apparatus for driving an optical disk having tracks for recording information, an optical head focuses a light beam onto a spot on a track on the optical disk, and an actuator moves the optical head, thereby causing the spot of the light beam to move from its current track to a target track in order to access the target track. A track counter counts the tracks moved by the spot of the light beam. The counting of tracks is disabled for an interval at the start of each track access operation to prevent miscounting caused by jitter that occurs when initiating a track access operation.

REFERENCES:
patent: 4390912 (1983-06-01), Hertrich et al.
patent: 4547822 (1985-10-01), Brown
patent: 4811316 (1989-03-01), Hosoya
SPIE Proceedings, vol. 695, Conference 695, Optical Mass Data Storage II, "Tracxing Servo for Small Size Optical Disk System," Inada et al.

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