Method and apparatus for encoding and decoding data
US7343548B2 · kind B2 · utility
27Cited by
3References
20Claims
0Family size
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Key dates
| Filing date | Apr 19, 2005 |
| Grant date | Mar 11, 2008 |
| Priority date | — |
| Expiry date | Aug 12, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/118
- 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. Base matrix Hb comprises a section Hb1 and a section Hb2. Section Hb2 comprises column hb having weight wh>=3 and H′b2 having a dual-diagonal structure with matrix elements at row i, column j equal to 1 for i=j, 1 for i=j+1, and 0 elsewhere. The 1's of hb and Hb1 are arranged such that one or more groups of the rows of Hb can be formed so that the rows of Hb within each group do not intersect. Further more, the rows of base matrix Hb can be permuted such that every two consecutive rows do not intersect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.