Hybrid drive writing extended error correction code symbols to disk for data sectors stored in non-volatile semiconductor memory
US8683295B1 · kind B1 · utility
140Cited by
43References
26Claims
0Family size
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Key dates
| Filing date | Jun 22, 2011 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Apr 4, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/2906
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hybrid drive is disclosed comprising a head actuated over a disk, and a non-volatile semiconductor memory (NVSM). A write command is received from a host, the write command comprising data. First and second error correction code (ECC) symbols are generated over the data, wherein the second ECC symbols are different than the first ECC symbols. The data and first ECC symbols are written to the NVSM, and the second ECC symbols are written to the disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.