Data storage device employing orthogonal equalization and sequence detection to compensate for two-dimensional intersymbol interference
US9047205B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2013 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Nov 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/41
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A data storage device is disclosed comprising a non-volatile memory (NVM), wherein data is read from the NVM to generate a two dimension matrix of signal samples, including a first dimension and a second dimension. The matrix of signal samples is first equalized to reduce intersymbol interference (ISI) in the first dimension to generate second dimension signal samples, and second equalized to reduce ISI in the second dimension to generate first dimension signal samples. A first data sequence is detected in response to the first dimension signal samples, and a second data sequence is detected in response to the second dimension signal samples.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.