Method and apparatus for encoding and decoding data
US7143333B2 · kind B2 · utility
39Cited by
4References
25Claims
0Family size
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Key dates
| Filing date | Dec 3, 2004 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Mar 4, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/1188
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A structured parity-check matrix H is proposed, wherein H is an expansion of a base matrix Hb and wherein Hb comprises a section Hb1 and a section Hb2, and wherein Hb2 comprises a first part comprising a column hb having an odd weight greater than 2, and a second part comprising matrix elements for row i, column j equal to 1 for i=j, 1 for i=j+1, and 0 elsewhere. The expansion of the base matrix Hb uses identical submatrices for 1s in each column of the second part H′b2, and the expansion uses paired submatrices for an even number of 1s in hb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.