Variable speed disk drive and method of controlling the disk...

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal

Reexamination Certificate

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Details

C369S053200, C369S053220

Reexamination Certificate

active

06987716

ABSTRACT:
A disk drive includes an information processor15for reading out or writing information from or to the disk drive, a disk drive unit11for driving a disk10, an access unit12for reading out or writing information from or to the disk10, and a controller13for controlling the disk drive unit11, and a disk controller14. The disk drive is driven at a set drive speed. Format identification information is acquired from information recorded on the disk10, and drive-speed information for the disk drive, determined from the acquired format identification information, is transmitted to control the speed of the disk.

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Nobuyuki Abe, “Arena of New Configuration,” DOS V magazine, vol. 7, No. 23, Dec. 1, 1998, pp. 312-315, 368.
Hideo Sano, “Optical Disk Device Control” Technical Journal Published by Inventors Association, Publication No. 95-900, Jan. 17, 1995. (English translation accompanies article in Japanese).

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