Patent · US Active

System and method for combined non-linear and late echo suppression

US10481831B2 · kind B2 · utility

1Cited by

6References

20Claims

0Family size

Assignee

Nuance Communications, Inc. · US

Inventors

Ingo Schalk-Schupp · Ulm, DE
Friedrich Faubel · Ulm, DE
Markus Buck · Biberach, DE
Naveen Kumar Desiraju · Ulm, DE
Tobias Wolff · Neu-Ulm, DE

Key dates

Filing date	Oct 2, 2017
Grant date	Nov 19, 2019
Priority date	—
Expiry date	Feb 3, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D10/00
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method, computer program product, and computer system for receiving, by a computing device, an input signal. A first power spectral density estimate may be generated for a linear reverberant component associated with the input signal. A second power spectral density estimate may be generated for a non-linear reverberant component associated with the input signal. A power spectral density estimate may be generated by combining the first power spectral density estimate for the linear reverberant component and the second power spectral density estimate for the non-linear reverberant component. One or more parameters for at least one of the linear reverberant component and the non-linear reverberant component may be updated. One or more undesired signal components in an output signal resulting from the input signal may be reduced via residual echo suppression based upon, at least in part, updating the one or more parameters.

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