Précédent
Suivant
Brevet : EP0943130 - PROCEDE POUR LA SEPARATION NON STATIONNAIRE DE SIGNAUX DE SOURCES DIFFERENTES
Titre
PROCEDE POUR LA SEPARATION NON STATIONNAIRE DE SIGNAUX DE SOURCES DIFFERENTES
N° et date de publication de la demande
EP0943130 - 22/09/1999
Type de la demande
A1
N° et date de dépôt
EP97952719.9 - 03/12/1997
N° et date de priorité
DE19652336 - 03/12/1996
Classification CIB
G06F 15/18 ; G06F 15/80 ; G06N 3/08 ; H04R 3/00 ; H04R 25/00
Classification CPC
Famille de brevets
WO9825214A1 ; DE19652336A1 ; EP0943130A1 ; JP2001504967A ; ATE259085T1
Abrégé
Method and device for non-stationary separation of signals of various sources or separation of at least one signal background, comprising a demixing phase with a switching matrix allocating, in a controlled manner, a number of signal inputs with mixing signal components to various outputs on evaluation elements by using an adaptive adding or multiplying algorithm. The adaptive algorithm can be variably controlled by using a variable learning rate, wherein the learning rate is continuously adapted by inclusion of an algorithm which comprises the following steps: i) detection of a differentiable function or at least two matrixes from the signal, the separated signal and the learning rate, which evaluates the separated signal; ii) adaptation of the switching matrix based on results of (i) and the learning rate, iii) adaptation of the learning rate based on results of (i) and (ii).
INTERVENANTS
Déposant
GMD GMBH (GMD - FORSCHUNGSZENTRUM INFORMATIONSTECHNIK GMBH) - DE
Titulaire
GMD - FORSCHUNGSZENTRUM INFORMATI
Inventeur
MUELLER KLAUS-ROBERT (MUELLER, KLAUS-ROBERT) - DE
ZIEHE ANDREAS (ZIEHE, ANDREAS) - DE
MURATA NOBORU (MURATA, NOBORU) - JP
Mandataire
EISENFUHR SPEISER & PARTNER - ANNA-LOUISA-KARSCH-STRASSE 2 10178 BERLIN - DE
STATUT EN FRANCE : Brevet EP sans effet
Délivrance
04/02/2004
Non remise de traduction du brevet
28/01/2005 (BOPI 2005-04)
