Magnetoresistive head and hard drive system having offsets from

Details Magnetoresistive head and hard drive system having offsets from Magnetoresistive head and hard drive system having offsets from

1995-05-19

2000-07-18

Loomis, Paul

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7708, G11B 5596

Patent

active

060915668

ABSTRACT:
A magnetoresistive (MR) reproduction element is positioned during data recording, data reproduction, and formatting so that its total range of movement is 3/2 times a range of movement (microjogging) from the location of the reproduction element in data recording to the location of the reproduction element in data reproduction. The total range of movement is centered within a range where the detection of positional error of the reproduction element changes linearly. Therefore, in the respective data recording, data reproduction and formatting processes, microjogging is performed and the detection of positional error changes linearly for each of an off-track OF.sub.W in data recording, an off-track OF.sub.R in data reproduction, and an off-track OF.sub.F in formatting. Accordingly, the characteristics of the MR reproduction element can be effectively used to a maximum degree and information can be reproduced without being undetected or erroneously detected.

REFERENCES:
patent: 5436773 (1995-07-01), Hanson
patent: 5459853 (1995-10-01), Best et al.
patent: 5483402 (1996-01-01), Batra

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