Data track pattern including embedded servo sectors for magneto-

Details Data track pattern including embedded servo sectors for magneto- Data track pattern including embedded servo sectors for magneto-

1994-08-26

1996-12-24

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7706, G11B 5596

Patent

active

055878504

ABSTRACT:
In a disk drive using a write-wide inductive write element and a read-narrow magneto-resistive read element within a head transducer assembly for writing and reading magnetic patterns on a rotating magnetic storage disk in a plurality of concentric tracks, a track pattern formed in each concentric track includes embedded servo wedges wherein each wedge includes a servo position portion which is offset from a centerline of both the servo sector and a following user data sector by an amount related to offset between the inductive write and magneto-resistive elements of the head transducer assembly. Furthermore, the servo sector contains four servo bursts. The servo bursts are arranged such that each sequential burst is offset from a previous burst by a fractional offset increment. The fractional offset increment is typically one-third of a track pitch.

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patent: 5369535 (1994-11-01), Hetzler
patent: 5384671 (1995-01-01), Fisher
patent: 5400201 (1995-03-01), Pederson

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