Global Patent Index - EP 1065909 A2

EP 1065909 A2 2001-01-03 - Noise canceling microphone array

Title (en)

Noise canceling microphone array

Title (de)

Rauschunterdrückung-Mikrofonanordnung

Title (fr)

Système de microphones suppresseur de bruit

Publication

EP 1065909 A2 (EN)

Application

EP 00305471 A

Priority

US 34295799 A

Abstract (en)

A method for enhancing discrimination of sound received from a sound source (54) relative to acoustic interference, including: providing a plurality of sound sensors (52) in predetermined positions, and receiving respective signals from the plurality of sound sensors responsive to the interference and to the sound source. Respective characteristics of the plurality of signals in each of a plurality of spectral bands are determined, and the characteristics are analyzed to compute a spectral gain function (132) which discriminately enhances a portion of the signals that is associated with the sound source. The signals from one or more of the plurality of sensors are processed to generate a combined master signal, and the spectral gain function is applied to the master signal so as to generate an output signal in which the portion of the signals associated with the sound source is enhanced relative to that due to the acoustic interference. <IMAGE>

IPC 1-7 (main, further and additional classification)

H04R 3/00

IPC 8 full level (invention and additional information)

H04R 1/28 (2006.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01)

CPC (invention and additional information)

H04R 3/005 (2013.01); H04R 2201/403 (2013.01); H04R 2410/01 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1065909 A2 20010103; JP 2001045592 A 20010216

INPADOC legal status


2006-01-04 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20041231

2001-08-16 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: DECKE UND DACH GMBH

2001-08-16 [RIN1] INVENTOR (CORRECTION)

- Inventor name: DECKE UND DACH GMBH

2001-01-03 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-01-03 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI