Systems and methods for inter-track interference cancellation in magnetic recording channels
US8537482B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2012 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Mar 23, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/10222
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A receiver for a hard disk drive system includes an analog front end module configured to sample a read-back signal and to output a digital read-back signal. An equalizer module is configured to generate a data vector based on the digital read-back signal. A detector module is configured to generate a decision vector based on the data vector. A re-timing module is configured to generate a first revised data vector based on the data vector and the decision vector. The re-timing module re-samples a plurality of samples in the data vector in a non-sequential time order to generate the first revised data vector. An inter-track interference (ITI) cancellation module is configured to remove ITI from the first revised data vector and to generate a second revised data vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.