Patent · US Active

Method and system for reducing a voice signal noise

US8005669B2 · kind B2 · utility

0Cited by

36References

4Claims

0Family size

Assignee

HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

Walter Frank · Altötting, DE
Marc Ihle · Ulm, DE

Key dates

Filing date	May 20, 2008
Grant date	Aug 23, 2011
Priority date	—
Expiry date	Oct 3, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG10L21/0208
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method is provided whereby, before being subjected to a low rate voice coding, an incoming digital voice signal is chronologically segmented into blocks, the blocks are broken down respectively, in chronological order, into frequency components by a transformation in the frequency range and the frequency components are multiplied by weight factors depending on the frequency and modifiable in time, a frequency component being multiplied by the last weight factor calculated for the frequency component if the factor is less than the current weight factor.

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