EP 1872360 A1 20080102 - METHOD FOR REPRODUCING A SECONDARY PATH IN AN ACTIVE NOISE REDUCTION SYSTEM
Title (en)
METHOD FOR REPRODUCING A SECONDARY PATH IN AN ACTIVE NOISE REDUCTION SYSTEM
Title (de)
VERFAHREN ZUR NACHBILDUNG EINES SECONDARY-PATH BEI EINEM AKTIVEN GERÄUSCHREDUKTIONSSYSTEM
Title (fr)
PROCEDE DE REPRODUCTION D'UN PARCOURS SECONDAIRE DANS UN SYSTEME DE REDUCTION DU BRUIT ACTIF
Publication
Application
Priority
- CH 2006000219 W 20060421
- CH 7272005 A 20050422
Abstract (en)
[origin: WO2006111039A1] The invention relates to a method for reproducing a secondary path in an active noise reduction system comprising a transmission path (S, 9', 10, 11), an adaptively adjustable filter (13), and an addition unit (14), the adaptively adjustable filter (13) being adjusted according to an output signal of the addition unit (14). The inventive method includes the following step: a delay time (T) of a signal along the transmission path (8, 9, 10, 11) is eliminated in the transmission function of the adaptively adjustable filter (13) in order to generate the reproduction of the secondary path.
IPC 8 full level
G10K 11/178 (2006.01)
CPC (source: EP KR US)
G10K 11/178 (2013.01 - KR); G10K 11/17817 (2017.12 - EP US); G10K 11/17854 (2017.12 - EP US); G10K 11/17879 (2017.12 - EP US); G10K 2210/3012 (2013.01 - EP KR US); G10K 2210/3017 (2013.01 - EP KR US); G10K 2210/3022 (2013.01 - EP KR US); G10K 2210/30232 (2013.01 - EP KR US); G10K 2210/3025 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2006111039A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006111039 A1 20061026; CN 101203905 A 20080618; EP 1872360 A1 20080102; JP 2008538420 A 20081023; KR 20080003914 A 20080108; US 2008317256 A1 20081225
DOCDB simple family (application)
CH 2006000219 W 20060421; CN 200680022149 A 20060421; EP 06721921 A 20060421; JP 2008506901 A 20060421; KR 20077027123 A 20071121; US 91219706 A 20060421