Data stored using perpendicular and longitudinal magnetic fields over more than two adjacent tracks
US10332547B1 · kind B1 · utility
3Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2018 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Jul 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/006
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A first reader spans first and second tracks of a recording medium and provides a first signal responsive to a first total longitudinal field of the first and second tracks. A second read spans two other tracks, at least one of the two other tracks being different from the first and second tracks. The second reader provides a second signal responsive to a second total longitudinal field of the two other tracks. A third reader spans two or more of the tracks and provides a third signal responsive to a total perpendicular field of the two or more tracks. User data is decoded from the first, second, and third signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.