Patent · US Active

Adaptive Viterbi decoder for a wireless data network receiver

US7426249B2 · kind B2 · utility

17Cited by

12References

20Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

Richard A. Keaney · Sydney, AU
Thomas C. McDermott, III · Plano, US
Philip J. Ryan · Sydney, AU

Key dates

Filing date	Mar 31, 2006
Grant date	Sep 16, 2008
Priority date	—
Expiry date	Oct 3, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH03M13/6511
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A configurable Viterbi decoder to decode a coded signal for inclusion in a radio receiver for implementing the physical layer receiving function (PHY) of a wireless data network. The decoder includes a branch metric generator with an input to the coded signal, an ACS subsystem coupled to the branch metric generator, and a survivor memory unit coupled to the ACS subsystem. The decoder includes a plurality of outputs each providing a decoded version of the input signal decoded to a distinct decision depth such that the Viterbi decoder is programmable to decode the signal to one of a plurality of decision depths.

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