Map decoding
US7594161B2 · kind B2 · utility
5Cited by
0References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 12, 2005 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | May 13, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0055
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of approximating the generation of a logarithm of a sum of exponents, for use in a log-MAP decoding operation, by performing a first operation on the data, calculating a correction term in a second operation, and adding the correction term to the results of the first operation, in which the second operation comprises calculating an approximate correction term by an operation including at least one division stage in which a first result obtained based on said data and at least a first coefficient is divided by a second result obtained based on said data and at least a second coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.