Rotary voice coil micro-hard disk drive system

Details Rotary voice coil micro-hard disk drive system Rotary voice coil micro-hard disk drive system

1987-03-18

1989-12-26

Faber, Alan

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7705, 360 9807, G11B 555, G11B 2108

Patent

active

048901741

ABSTRACT:
A very high capacity, closed-loop Winchester disk drive system particularly suited to meet the demands of a portable computer system is disclosed. The micro-Winchester disk is a Winchester disk of 95 mm in diameter. The disk drive system of the present invention, 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 in excess of 1000 tracks per inch utilizing a closed-loop rotary voice coil 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, and lightweight hard disk storage is required. The disk drive system of the present invention normally utilizes between two and four hard disks, such as Winchester disks, with one disk containing a dedicated servo surface. The drive system provides data storage of between about 21 and 50 Megabytes, once the disks are formatted.

REFERENCES:
patent: 3849800 (1974-11-01), Cuzner et al.
patent: 4535372 (1985-08-01), Yeakley
patent: 4638383 (1987-01-01), McGinby et al.
patent: 4639863 (1987-01-01), Harrison et al.
patent: 4669004 (1987-05-01), Moon et al.
patent: 4689703 (1987-08-01), Olbrich et al.
patent: 4712146 (1987-12-01), Moon et al.
patent: 4714972 (1987-12-01), Biermeier et al.
Electronic Engineering Times "Winchester Disk Drives" Clements, 2/25/85, Issue 318 pp. 53,56,58,59,60,62,63,65.
Hewlett Packard brochure for HP97501A, "31/2" 10 mbyte micro-Winchester Disc Drive", 11/1/84.
IEEE Trans on Magnetics vol. mag. 17, No. 4, "Mechanical and Servo Design of a 10 inch Disk Drive" Mizoshita et al., 7/81, pp. 1387-1391.
Electronics International, vol. 56, No. 5, 3/10/83 pp. 139-142.
Plus, "Hardcard-the easy-to-use 10 Megabyte Hard Disk Drive On A Plug-in Card", 1985.

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