Dynamic tape drive calibration
US7847496B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2008 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Feb 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B15/43
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Dynamic calibration of a secondary velocity signal is provided in a tape drive. In one example, a reel motor is operated to drive a reel carrying a tape in a tape drive. The motion of the tape is measured to provide a measured primary velocity signal of the tape, and in addition, the operation of the reel motor is measured to provide an estimated secondary velocity signal of the tape as a function of motor parameters and the motor operation measurements. The estimated secondary velocity signal of the tape may be calibrated as the tape is driven, as a function of the tape motion measurements and the motor operation measurements. Other embodiments are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.