Encoders for block-circulant LDPC codes
US7499490B2 · kind B2 · utility
27Cited by
39References
28Claims
0Family size
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Key dates
| Filing date | Jun 24, 2005 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Jun 23, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0057
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus to encode message input symbols in accordance with an accumulate-repeat-accumulate code with repetition three or four are disclosed. Block circulant matrices are used. A first method and apparatus make use of the block-circulant structure of the parity check matrix. A second method and apparatus use block-circulant generator matrices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.