Patent · US Active

Method for extending the spectral bandwidth of a speech signal

US7792680B2 · kind B2 · utility

30Cited by

3References

20Claims

0Family size

Assignee

Nuance Communications, Inc. · US

Inventors

Bernd Iser · Ulm, DE
Gerhard Uwe Schmidt · Ulm, DE

Key dates

Filing date	Oct 6, 2006
Grant date	Sep 7, 2010
Priority date	—
Expiry date	Oct 11, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG10L21/0264
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for extending the spectral bandwidth of an excitation signal of a speech signal includes determining a bandwidth limited excitation signal of the speech signal, and applying a nonlinear function to the excitation signal for generating a bandwidth extended excitation signal.

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