Micro hard-disk drive system

Details Micro hard-disk drive system Micro hard-disk drive system

1984-02-22

1986-02-04

Stellar, George G.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 78, G11B 5012, G11B 555, G11B 556

Patent

active

045689881

ABSTRACT:
A micro-Winchester disk drive system particularly suited to meet the demands of a portable computer system. The micro-Winchester disk is a Winchester disk of 85-100 mm in diameter. This disk drive system by virtue of its small size and vibration isolation is ideally suited for use in portable computer systems. The micro-Winchester disk drive system was developed to store data at a density of 600 tracks per inch utilizing open-loop positioning mechanism. This disk drive system provides fast access data storage for use with small business computers, terminals and microprocessor based systems, portable or otherwise, and many other areas where compact, rugged light-weight hard-disk storage is required. The disk drive system of the present invention normally utilizes either one or two hard disks such as Winchester disks and provides data storage on each disk in excess of 5 Megabytes, once the disks are formatted.

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IEEE Transactions on Magnetics vol. Mag-17, No. 6, Nov. 1981 pp. 2739-2741 A 2,000 Track/Inch Disk File Servo System Using a Magnetoresistive Head, R. L. Comstock et al.

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