Zero phase start for array reader magnetic recording system
US9196298B1 · kind B1 · utility
22Cited by
3References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 30, 2014 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Jun 30, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1232
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes an array reader with multiple of read heads operable to read a preamble pattern from a magnetic storage medium. A number of analog to digital converters are operable to sample an output of each of the read heads to generate digital data streams for the preamble pattern. A zero phase start calculation circuit is operable to calculate a phase offset between the digital data streams and to generate an integer phase adjustment signal and a fractional phase adjustment signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.