Method and apparatus for implementing a Viterbi decoder
US7173985B1 · kind B1 · utility
9Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2002 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Aug 25, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/6583
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The Viterbi decoder includes a branch metric processor that determines branch metrics for states of an encoder in a time period. The Viterbi decoder includes a survivor processor that selects survivor paths between states of the encoder in consecutive time periods. The Viterbi decoder includes a normalization unit that normalizes state metrics of the states of the encoder in the time period by subtracting a constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.