Patent · US Expired

Method and device for decoding convolutional codes

US6513140B2 · kind B2 · utility

6Cited by

4References

8Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Markus Dötsch · Köniz, CH
Peter Jung · Munich, DE
Jörg Plechinger · Hersbruck, DE
Peter Schmidt · Ellerstadt, DE

Key dates

Filing date	Jul 20, 2001
Grant date	Jan 28, 2003
Priority date	—
Expiry date	Jul 20, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH03M13/6331
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Convolutional codes are decoded by calculating, for uncoded and coded symbols, a first and/or second item of reliability information (&Lgr;u and &Lgr;c respectively). The item of reliability information is representative of the probability that the considered nth uncoded or coded symbol is equal to a value i of the symbol set, under the condition that a specific sequence of received coded symbols is present. An approximate expression is proposed for calculating the second item of reliability information.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.