Invention Grant
- Patent Title: Distributed servo patterns for data storage media
- Patent Title (中): 用于数据存储介质的分布式伺服模式
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Application No.: US12291703Application Date: 2008-11-13
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Publication No.: US07889454B2Publication Date: 2011-02-15
- Inventor: Douglas W. Johnson , James S. Anderson , David A. Gobran , Denis J. Langlois
- Applicant: Douglas W. Johnson , James S. Anderson , David A. Gobran , Denis J. Langlois
- Applicant Address: US MN Oakdale
- Assignee: Imation Corp.
- Current Assignee: Imation Corp.
- Current Assignee Address: US MN Oakdale
- Agency: Shumaker & Sieffert
- Main IPC: G11B5/584
- IPC: G11B5/584 ; G11B5/09

Abstract:
The invention is directed to a data storage medium that includes a plurality of servo bands distributed across the data storage medium and a plurality of data tracks positioned between each of the plurality of distributed servo bands. The data storage medium comprises a servo band pitch of less than 200 micrometers. The large number of servo bands distributed across the data storage medium with a relatively small servo band pitch reduces the influence of media dimensional instability. In this way, the invention may substantially increase data read head positioning accuracy, especially in the case of narrow track widths. A read head array arranged in a two-dimensional matrix that includes a first servo read head, a second servo read head, and a plurality of data read heads positioned between the first and second servo read heads may be applied to a data storage medium as described herein.
Public/Granted literature
- US20090073604A1 Distributed servo patterns for data storage media Public/Granted day:2009-03-19
Information query
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