Magnetic disk drive

Details Magnetic disk drive Magnetic disk drive

1989-09-21

1992-01-21

Wolff, John H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 5596

Patent

active

050832263

ABSTRACT:
A magnetic-disk drive includes: a magnetic disk having a ridge pattern consisting of at least one ridge extending in the circumferential direction; a recording/reproduction head arranged over the surface of the magnetic disk and having a track width larger than the width of the ridge of the pattern and smaller than the pattern pitch; a device for rotating the magnetic disk; and a recording/reproduction circuit.

REFERENCES:
patent: 3258750 (1966-06-01), Shew
patent: 4183059 (1980-01-01), Palmer
IBM/TDB vol. 16, No. 4, Sep. 1973, p. 1082 "Optical Servo Information on Magnetic Recording Disks" by Schneider.
IBM/TDB vol. 18, No. 7, Dec. 1975, pp. 2248-2249 "Track Crossing Responsive Device" by Paska.
"Recording Characteristics of Submicron Discrete Magnetic Tracks", (Paper HB-10, Digests of the Intermag Conference, 1987).

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