Device for correcting two errors with a code of hamming distance three or four
US9515682B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2013 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Sep 7, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/453
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A device for correcting an initial binary word affected by an error in 1 or 2 bits and arising from a corrector code endowed with a minimum Hamming distance of 3 or 4, comprises first means for correcting an error of 1 bit and for detecting an error of more than 1 bit in the initial word and second means for correcting an error of 1 bit in a word arising from an inversion module, able to receive a datum indicative of a binary level of confidence, low or high, assigned to each of the bits of at least one part of the initial word, said inversion module being configured to invert the bits of the initial word which suffer the low confidence level, and a multiplexer with at least two inputs which is driven by the means for detecting an error of more than 1 bit in the initial word, said multiplexer being fed on a first input by the output of the first correction means and on a second input by the output of the second correction means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.