公开(公告)号：US20160203813A1

公开(公告)日：2016-07-14

申请号：US14893188

申请日：2014-05-23

Applicant: ELNO

Inventor： Thierry Pierre François GAIFFE ,  Patrick Jean François ROBUCHON ,  Julie Marie Anne ROSIER ,  Eric Bernard Jacques CLOWEZ

IPC: G10K11/178

CPC classification number: G10K11/1788 ,  G10K11/178 ,  G10K2210/3055 ,  G10K2210/3229 ,  H04R1/1083 ,  H04R3/00

Abstract: The invention relates to an acoustic device capable of producing active noise reduction, which may be positioned on the head of a user, comprising at least one microphone capable of sensing a sound signal representative of ambient noise, including at least one active noise reduction acoustic module comprising an osteophonic transducer, capable of being positioned on a side flank of the head of the user and of transmitting a vibratory signal transformed by bone conduction into an acoustic signal which may be perceived by the user, connected to said microphone, while said at least one acoustic module includes an electronic circuit capable of generating a vibratory signal giving the possibility of attenuating perception of said ambient noise by the user.

Abstract translation: 本发明涉及一种能够产生主动降噪的声学装置，其可以位于使用者的头部，该声学装置包括至少一个麦克风，其能够感测表示环境噪声的声音信号，包括至少一个主动降噪声学模块 包括骨骼换能器，能够定位在使用者的头部的侧面，并且将通过骨传导转换的振动信号传递到连接到所述麦克风的用户可感知的声学信号，同时至少 一个声学模块包括能够产生振动信号的电子电路，该振动信号具有衰减用户对所述环境噪声的感知的可能性。

公开(公告)号：US20230388704A1

公开(公告)日：2023-11-30

申请号：US18202240

申请日：2023-05-25

Applicant: ELNO

Inventor： Arthur Henri LACROIX ,  Clément Jean-Baptiste ALBERT ,  Mathieu Clément Nicolas DEXHEIMER ,  Thierry Pierre François GAIFFE

IPC: H04R3/00 ,  H04R1/46 ,  G10L25/78

CPC classification number: H04R3/005 ,  H04R1/46 ,  G10L25/78 ,  H04R2460/13

Abstract: The electronic processing device for an acoustic apparatus including a first air conduction microphone and a second bone conduction microphone, configured for being connected to the first and second microphones, for receiving as inputs the first and respectively second analog signals from the first, and respectively second microphones and for delivering as output a corrected signal.
The processing device comprises:



a hybridization module configured for calculating a hybrid signal from the first and second analog signals;
an estimation module configured for estimating noise in the hybrid signal;
a noise reduction module configured for calculating the corrected signal by applying a generalized spectral subtraction algorithm to the hybrid signal and according to the estimated noise.