Patent · US Active

Filtering of beamformed speech signals

US8392184B2 · kind B2 · utility

11Cited by

0References

21Claims

0Family size

Assignee

Nuance Communications, Inc. · US

Inventors

Markus Buck · Biberach, DE
Klaus Scheufele · Aalen, DE

Key dates

Filing date	Jan 21, 2009
Grant date	Mar 5, 2013
Priority date	—
Expiry date	Nov 15, 2031

Classification

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

Abstract

The invention relates to speech signal processing that detects a speech signal from more than one microphone and obtains microphone signals that are processed by a beamformer to obtain a beamformed signal that is post-filtered signal with a filter that employs adaptable filter weights to obtain an enhanced beamformed signal with the post-filter adapting the filter weights with previously learned filter weights.

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