Reduced recovery time for perpendicular recording systems
US7119977B2 · kind B2 · utility
0Cited by
3References
20Claims
0Family size
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Key dates
| Filing date | Mar 28, 2005 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Apr 2, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/001
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
User data is read from a medium having servo data and user data encoded thereon. The user data is read with a read/write head that is operable in a write mode and a read mode. Servo data is read in a time window following a transition from write mode to read mode, with a frequency passband that has a first low frequency corner. User data is read from the medium after expiration of the time window, with a frequency passband that has a second low frequency corner that is lower than the first low frequency corner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.