Using signals from perpendicular and longitudinal multitrack magnetic fields for error recovery and/or servo control
US10490219B1 · kind B1 · utility
1Cited by
17References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 6, 2018 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Sep 6, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
First and second tracks are read simultaneously via a first reader mounted in a head-gimbal assembly. The first reader provides a first signal based on detecting a total perpendicular field of the first and second tracks. The first and second tracks are read simultaneously via a second reader mounted in the head-gimbal assembly. The second reader provides a second signal based on detecting a total longitudinal field of the first and second tracks. At least one of a position error and a timing error of at least one of the first and second readers are determined based on user data read via the respective first and second signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.