Device for reading data from or writing data to magnetic storage media and a method of positioning a tape head relative to the magnetic storage media
AssigneeHewlett-Packard Company
InventorsVernon L. Knowles, Donald J. Fasen, Richard D. Barndt
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Abstract
A device for reading data from or writing data to magnetic storage media, the device comprising a head having a plurality of read/write elements for reading data from or writing data to magnetic storage media in respective tracks, and a plurality of servo elements for reading servo code from the media in respective bands different from the data tracks, the read/write elements and servo elements being arranged such that a plurality of the tracks operated on by the read/write elements are disposed between two servo bands operated on by two of the servo elements.
Claims5
A method of positioning a tape head relative to desired tracks of a tape, the method comprising:
- writing a plurality of servo bands on the tape and writing data in multiple tracks between the servo bands, after writing the plurality of servo bands;
- providing a plurality of read/write elements on the head, and providing servo elements on the head capable of reading both servo bands while the read/write elements read or write to the tape, the servo elements and read/write elements being arranged on the head in columns, such that, in each column, all of the read/write elements are located intermediate two servo elements;
- and
- comparing signals read from the servo bands and calculating lateral expansion of the tape using the comparison.
Dependencies are inferred from the claim text.