Detecting and correcting insertion and deletion of bits for bit patterned media storage systems
US7787205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2007 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Nov 6, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of determining errors in a data storage device is disclosed. The disclosed method includes receiving a first code word from the data storage device. The method further includes determining whether a data error exists in the code word by analyzing a plurality of subsequent code words. Detecting a data error includes calculating first, second, and third checksums for each of a plurality of subsequent code words and determining whether there is an insertion or deletion error based on the calculated checksums. A further method includes receiving location information of errors on a data medium and adjusting a write clock frequency to reduce the probability of creating errors on the data medium during a write process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.