Patent · US Active

Noise reduction for dual-microphone communication devices

US8903722B2 · kind B2 · utility

14Cited by

6References

26Claims

0Family size

Assignee

Intel Mobile Communications GmbH · DE

Inventors

Marco Jeub · Aachen, DE
Christoph Nelke · Aachen, DE
Christian Herglotz · Aachen, DE
Peter Vary · Herzogenaurach, DE
Christophe Beaugeant · Mouans-Sartoux, FR

Key dates

Filing date	Aug 29, 2011
Grant date	Dec 2, 2014
Priority date	—
Expiry date	Mar 3, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2499/11
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method, system, and computer program product for managing noise in a noise reduction system, comprising: receiving a first signal at a first microphone; receiving a second signal at a second microphone; identifying noise estimation in the first signal and the second signal; identifying a transfer function of the noise reduction system using a ratio of a power spectral density of the second signal minus the noise estimation to a power spectral density of the first signal, wherein the noise estimation is removed from only the power spectral density of the second signal; and identifying a gain of the noise reduction system using the transfer function.

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