Controller, disk drive, and read processing method
US9105277B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2014 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Sep 9, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/10268
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, an equalizer is configured to obtain a noise included in a first correction signal by using a noise component of a first track and a noise interference component from a second track. The equalizer is configured to correct the first correction signal by using the obtained noise. The equalizer is configured to equalize the corrected first correction signal. The noise component of the first track is calculated based on a noise component of the first track at a first timing and a noise component of the first track at a second timing earlier than the first timing. The noise interference component from the second track is calculated based on a noise interference component from the second track at the first timing and a noise interference component from the second track at the second timing. The decoder is configured to decode the equalized first correction signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.