Method and apparatus for preventing head crashes in a disk syste

Details Method and apparatus for preventing head crashes in a disk syste Method and apparatus for preventing head crashes in a disk syste

1988-12-13

1990-09-04

Richardson, Robert L.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360103, 360109, 369 4411, G11B 2121

Patent

active

049549049

ABSTRACT:
Improved apparatus and a method are disclosed for controlling the flying height of a head over a rotating medium, such as used in a rigid disk drive employing magnetic, magneto-optic or optical recording techniques. The flying height is controlled via magnetic attraction or repulsion to maintain a selected and substantially uniform flying height of the head with respect to the rotating medium.

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"Optical-Memory Media," Edward Rothchild, Optical Memory Newsletter, POB 14817, San Francisco, CA 94114, Mar. 1983 BYTE Publications, Inc., pp. 86-106.
"The Winchester Odyssey," Jim Toreson, Xebec, 432 Lakeside Dr., Sunnyvale, CA 94086, Mar. 1983 Byte Publications, Inc., pp. 122-128.
"Building a Hard-Disk Interface for an S-100 Bus System," Andrew C. Cruce and Scott A. Alexander, ASC Assocs., Inc., POB 615, Lexington Park, MD 20653, Mar. 1983 Byte Publications, Inc., pp. 130-148.

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