Asynchronous track code encodement and detection for disk drive

Details Asynchronous track code encodement and detection for disk drive Asynchronous track code encodement and detection for disk drive

1993-11-08

1995-08-15

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 51, 360 7702, 360 49, 360 48, G11B 5596, G11B 509

Patent

active

054424984

ABSTRACT:
A disk head position control system having a disk head controller that moves a disk head relative to a surface of a magnetic media disk encoded with a plurality of tracks of a quadrature burst pattern includes a burst pattern that comprises an asynchronous, multi-frequency track address code having burst pattern transitions that extend across the width of a track and are arranged in staggered fashion in alternate tracks such that no transitions between adjacent tracks are aligned in the disk radial direction.

REFERENCES:
patent: 4134138 (1979-01-01), Cardot et al.
patent: 4209810 (1980-06-01), Ragle et al.
patent: 4519054 (1985-05-01), Jewer
patent: 4669004 (1987-05-01), Moon et al.
patent: 4823212 (1989-04-01), Knowles et al.
patent: 4910617 (1990-03-01), Brunnett et al.
patent: 4977472 (1990-12-01), Volz et al.
patent: 4984100 (1991-01-01), Takayama et al.
patent: 5050016 (1991-09-01), Squires
patent: 5089757 (1992-02-01), Wilson
patent: 5285327 (1994-02-01), Hetzler
D. Freitas, G. Herbst and M. Moser, "Asynchronous Quadrature Burst Position Error Demodulation Technique," IBM Technical Disclosure Bulletin, vol. 34, No. 5, Oct. 1991, pp. 406-407.
C. C. Liu, "Quad-Burst Servo Pattern," IBM Technical Disclosure Bulletin, vol. 22, No. 12, May 1980, pp. 5436-5438.
W. A. Herrington and F. E. Mueller, "Quad-Burst PES System for Disk File Servo," IBM Technical Disclosure Bulletin, vol. 21, No. 2, Jul. 1978, pp. 804-805.

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