Servo head with varying write gap width

Details Servo head with varying write gap width Servo head with varying write gap width

2007-04-03

2007-04-03

Korzuch, William (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

C360S077120, C360S122000

Reexamination Certificate

active

10927403

ABSTRACT:
A servo head comprising a write gap with a non-uniform width is described. It allows non-uniform width servo marks to be recorded on magnetic media. A servo head having a non-uniform width gap may create servo marks that facilitate servo position error signal calculations using time-based methods, amplitude-based methods, or both. This invention provides alternative methods for positioning servo heads and may increase reliability and precision by allowing redundant calculations.

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