Method and apparatus for providing linear position (LPOS) estimations
US6791781B2 · kind B2 · utility
21Cited by
24References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 17, 2001 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Dec 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B15/54
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for providing linear position (LPOS) estimations. If valid LPOS data may be detected from the tape, then a first method for LPOS estimation is performed using the Hall effect sensors. If valid LPOS data may not be detected from the tape, then an error recovery procedure (ERP) is invoked so that a second method for LPOS estimation is used to provide accurate LPOS information which is synchronized to a validly detected LPOS from tape within about 1 meter prior to the desired data record.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.