ACQ in the presence of baseline pop
US8625218B1 · kind B1 · utility
2Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2012 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Dec 18, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/10305
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for the correction of DC noise in signals read by a head of a disk drive are presented. Circuitry on a first data path may be configured to filter an input signal to remove a DC component. Acquisition parameters on the first data path may be configured based on the filtered signal. Circuitry on a second data path may be configured to adjust the input signal based on the configured acquisition parameters. A mean of a window of data samples of the adjusted input signal may be computed. Based on the computed mean, a correction may be applied to the adjusted input signal until a stopping rule is satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.