Two dimensional magnetic recording system head separation estimator
US8861112B1 · kind B1 · utility
21Cited by
2References
20Claims
0Family size
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Key dates
| Filing date | Apr 24, 2014 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Apr 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3977
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for estimating head separation in an array reader magnetic recording system includes an array reader with multiple read heads operable to read data from a magnetic storage medium, a first preamplifier connected to a first read head, a second preamplifier connected to a second read head, and a head separation estimation circuit connected to the first preamplifier and to the second preamplifier, operable to estimate an integer phase offset and a fractional phase offset between a first signal from the first read head and a second signal from the second read head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.