Decoding extended error correcting codes using soft information
US6931583B2 · kind B2 · utility
29Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2003 |
| Grant date | Aug 16, 2005 |
| Priority date | — |
| Expiry date | Mar 26, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/19
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In one embodiment, the present invention can be used to correct one more error in an extended codeword encoded with a block code and a single parity check code than the block code is able to correct. In one embodiment, a communications device includes a decoder that has a soft decoder to receive an extended codeword and a strength of each bit of the extended codeword, and to produce a codeword by soft decoding the extended codeword using the received strengths, and a block decoder coupled to the soft decoder to produce a corrected codeword by block decoding the codeword using an error correcting block code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.