Magnetoresistive head and hard drive system having offsets from center of the servo area to minimize microjogging
US6091566A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1995 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | May 19, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59644
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.