Patent · US Active

Speech signal processing with combined noise reduction and echo compensation

US7747001B2 · kind B2 · utility

50Cited by

1References

28Claims

0Family size

Assignee

Nuance Communications, Inc. · US

Inventors

Walter Kellermann · Eckental, DE
Wolfgang Herbordt · Munich, DE

Key dates

Filing date	Sep 2, 2005
Grant date	Jun 29, 2010
Priority date	—
Expiry date	Apr 19, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG10L2021/02166
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A speech signal processing system combines acoustic noise reduction and echo cancellation to enhance acoustic performance. The speech signal processing system may be used in vehicles or other environments where noise-suppressed communication is desirable. The system includes an adaptive beamforming signal processing unit, an adaptive echo compensating unit to reduce acoustic echoes, and an adaptation unit to combine noise reduction and adaptive echo compensating.

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