Probability-based multi-level LDPC decoder
US8719686B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2011 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Apr 23, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/658
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Various embodiments of the present invention are related to methods and apparatuses for decoding data, and more particularly to methods and apparatuses for probability-based multi-level LDPC decoding. For example, in one embodiment an apparatus includes a horizontal updater in a low density parity check decoder operable to iteratively perform row processing to update probabilities of multi-level symbol values, a vertical updater in the low density parity check decoder operable to iteratively perform column processing to update the probabilities of the multi-level symbol values, and a check sum calculation circuit operable to calculate total soft values for the multi-level symbol values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.