Interleaved servo pattern
US7495859B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2007 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Apr 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/584
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.