Data storage device employing multi-tier coding for magnetic tape
US11049520B1 · kind B1 · utility
4Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 2020 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | May 8, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1863
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage device is disclosed comprising at least one head configured to access a magnetic tape. Data is read from the magnetic tape to generate a read signal which is processed to decode a first M blocks of low density parity check (LDPC) type codewords using a LDPC type decoder. First un-converged codewords out of the first M blocks are decoded using a first M-blocks parity, and second un-converged codewords out of the first M blocks are decoded using an erasure code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.