Staggered seeking method for disk drive sector servo

Details Staggered seeking method for disk drive sector servo Staggered seeking method for disk drive sector servo

1989-01-09

1990-05-08

Shoup, Jr., William M.

Electricity: motive power systems

Positional servo systems

Adaptive or optimizing systems including 'bang-bang' servos

318571, 360 7706, 360 7705, 360 7807, 187116, G05B 1300

Patent

active

049241605

ABSTRACT:
A sampled data read/write head positioning system for a disk drive having a sector servo overcomes the low bandwidth constraints of feedback position samplers. The system includes controlled acceleration and controlled deceleration of the read/write heads while seeking a track. In order to avoid missing track addresses, the sectors on each disk surface are staggered (offset) along each track from the corresponding sectors on the other disk surfaces, and each read/write head is used to find a particular track by sequentially switching the read/write heads while seeking.

REFERENCES:
patent: 4124101 (1978-11-01), Satoh
patent: 4297734 (1981-10-01), Laishley et al.
patent: 4642709 (1987-02-01), Vinal
patent: 4701815 (1987-10-01), Yada et al.
patent: 4775903 (1988-10-01), Knowles

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