Low density parity check decoder with miscorrection handling
US8996969B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2012 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | May 2, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/1142
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A data processing system includes a decoder circuit, syndrome calculation circuit and hash calculation circuit. The decoder circuit is operable to apply a decoding algorithm to a decoder input based on a first portion of a composite matrix to yield a codeword. The syndrome calculation circuit is operable to calculate a syndrome based on the codeword and on the first portion of the composite matrix. The hash calculation circuit is operable to calculate a hash based on a second portion of the composite matrix. The decoder circuit is also operable to correct the codeword on the hash when the syndrome indicates that the codeword based on the first portion of the composite matrix is correct but a second test indicates that the codeword is miscorrected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.