Architecture and control of reed-solomon error-correction decoding
US7444582B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2005 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Jan 23, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/4146
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided for implementing various aspects of a Reed-Solomon (RS) error-correction system. A detector can provide a decision-codeword from a channel and can also provide soft-information for the decision-codeword. If the decision-codeword corresponds to an inner code and an RS code is the outer code, a soft-information map can process the soft-information for the decision-codeword to produce soft-information for a RS decision-codeword. A RS decoder can employ the Berlekamp-Massey algorithm (BMA), list decoding, and a Chien search, and can include a pipelined architecture. A threshold-based control circuit can be used to predict whether list decoding will be needed and can suspend the list decoding operation if it predicts that list decoding is not needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.