Servo gain compensation in a disc drive

Details Servo gain compensation in a disc drive Servo gain compensation in a disc drive

1986-07-01

1987-08-18

Stellar, George G.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 77, 360 78, G11B 5012

Patent

active

046881182

ABSTRACT:
Improvements are realized in magnetic disc drives in minimizing servo gain variations from one head to another and in differing track offset positions by providing servo code patterns and methods of fabricating such patterns in which magnetic heads of differing widths overlap the same amount of servo code and in which servo gain variations in track offset positions are minimized by maintaining servo code overlap by the magnetic heads relatively constant up to substantially one-half track offsets of magnetic head.

REFERENCES:
patent: 4115823 (1978-09-01), Commander et al.
patent: 4412165 (1983-10-01), Case et al.
patent: 4530019 (1985-07-01), Penniman
patent: 4551776 (1985-11-01), Roalson
patent: 4588636 (1986-05-01), Shirahata

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