Patent · US Active

Method of filtering non-steady lateral noise for a multi-microphone audio device, in particular a “hands-free” telephone device for a motor vehicle

US8370140B2 · kind B2 · utility

33Cited by

41References

9Claims

0Family size

Assignee

PARROT · FR

Inventors

Guillaume Vitte · Paris, FR
Julie Seris · Paris, FR
Guillaume Pinto · Paris, FR

Key dates

Filing date	Jul 1, 2010
Grant date	Feb 5, 2013
Priority date	—
Expiry date	Feb 18, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2430/03
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A multi-microphone hands-free device operating in noisy surroundings implements a method of de-noising a noisy sound signal. The noisy sound signal comprises a useful speech component coming from a directional speech source and an unwanted noise component, the noise component itself including a lateral noise component that is non-steady and directional. The method operates in the frequency domain and comprises

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