Method for writing a uniform servo code into a magnetic disk dri

Details Method for writing a uniform servo code into a magnetic disk dri Method for writing a uniform servo code into a magnetic disk dri

1993-01-06

1993-12-21

Hajec, Donald T.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7702, G11B 2102, G11B 5596

Patent

active

052725782

ABSTRACT:
A method for writing a final track positioning servo code into a servo code signal region of a set of disks of a magnetic disk drive. the method includes writing a first temporary servo code in an opened loop manner into a first position in the set of disks, writing an Nth temporary servo code in a closed loop manner into an Nth position in the set of disks, writing an (N+1)th temporary servo code in the closed loop manner into an (N+1)th position in the set of disks, repeating the previous steps until the final servo code which has an even spacing and is recorded regularly is obtained and then writing the final servo code into the servo code signal region.

REFERENCES:
patent: 4414589 (1983-11-01), Oliver et al.
patent: 4445144 (1984-04-01), Giddings
patent: 4531167 (1985-07-01), Berger

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