Read after write enhancement for bit patterned media
US8035910B2 · kind B2 · utility
8Cited by
4References
20Claims
0Family size
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Key dates
| Filing date | Jun 29, 2007 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Mar 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/252
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A read/write head for use with bit-patterned media detects write synchronization errors between a write clock and the bit-patterned media. In particular, the read/write head writes data to the bit-patterned media using a write clock. The data is then read from the bit-patterned media and used to detect write synchronization errors between the write clock and the location of bit-islands on the bit-patterned media. Based on detected write synchronization errors, the phase associated with the write clock is modified to align the write clock with the location of bit-islands on the bit-patterned media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.