Viterbi decoding method and device thereof
US6199191A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1998 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Jun 11, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/4169
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A Viterbi decoding method for decoding a received signal, doing an ACS process and a trace back process a first number of times, and doing the ACS process a second number of times and the trace back process the first number of times until the trace back process is complete for all of the bits to be decoded if the tracing back has not already been finished for all bits, the Viterbi decoding method further including: after the trace back processing has finished for all of the bits to be decoded, deciding a fame error based on the result of calculating a Hamming distance between the received signal and re-encoded decoded signal, and possibly changing the first number and/or the second number depending on value stored in a counter which signifies the condition of the frame error for the past several times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.