Timing analysis of read back signals in magnetic recording devices
US7245449B2 · kind B2 · utility
7Cited by
7References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2005 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Oct 11, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Analysis of a read back signal in a magnetic recording device is disclosed. The read back signal is converted to a digital read back signal, and a low frequency component of the digital read back signal is restored. A sample clock is recovered from the restored digital read back signal, and the restored digital read back signal is averaged using the recovered sample clock. A timing error is calculated based at least in part on the averaged restored digital read back signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.