Magnetic disk device and linearity error correction method
US10854238B2 · kind B2 · utility
1Cited by
8References
17Claims
0Family size
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Key dates
| Filing date | Sep 12, 2019 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Sep 12, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a magnetic disk device includes a disk including a recording region including servo sectors, a head configured to write data to the disk and read data from the disk, and a controller configured to demodulate a plurality of pieces of demodulation data from servo data read from servo sectors, divide the demodulation data into a plurality of pieces of division data corresponding to division regions, perform linearity correction corresponding to a plurality of pieces of division data in each of the division regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.