Write synchronization in patterned magnetic media
US8213103B2 · kind B2 · utility
3Cited by
18References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2009 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Feb 24, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/252
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for synchronizing write signals are disclosed. In one embodiment, a compensation system is implemented within a disk drive that receives a synchronization signal read from a patterned magnetic disk by a read head. The compensation system processes the synchronization signal to compensate for noise sensed by the read head while a write head writes to the disk based on a write signal. The adjustment module is operable to adjust the write signal based on the processed synchronization signal so that the write signal is synchronized to the pattern on the disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.