The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2009
Filed:
Feb. 20, 2007
Mark P. Weber, Oakdale, MN (US);
Richard E. Jewett, Minneapolis, MN (US);
Douglas W. Johnson, Stillwater, MN (US);
Richard W. Molstad, St. Paul, MN (US);
Alan R. Olson, Cottage Grove, MN (US);
Mark P. Weber, Oakdale, MN (US);
Richard E. Jewett, Minneapolis, MN (US);
Douglas W. Johnson, Stillwater, MN (US);
Richard W. Molstad, St. Paul, MN (US);
Alan R. Olson, Cottage Grove, MN (US);
Imation Corp., Oakdale, MN (US);
Abstract
In general, the invention is directed to servo techniques that utilize servo patterns to facilitate head positioning relative to the data tracks. For example, the servo techniques may include a first series of servo patterns configured to allow calculation of a position error signal that substantially mitigates error resulting from a variation in velocity of the data storage tape during detection of the at least one of the servo patterns in the first series. The servo techniques may also include a second series of servo patterns interleaved within the first series of servo patterns in order to encode data. The encoded data may include linear position information. Embodiments may allow a data storage tape meeting a currently accepted data storage tape specification, e.g., an LTO Ultrium specification, to record data in a higher density than currently implemented with the specification.