Brevet : EP0997055 - PROCEDE DE SELECTION ELECTRONIQUE DE LA DEPENDANCE D'UN SIGNAL DE SORTIE A PART...

Titre

PROCEDE DE SELECTION ELECTRONIQUE DE LA DEPENDANCE D'UN SIGNAL DE SORTIE A PARTIR DE L'ANGLE SPATIAL DE L'INCIDENCE DU SIGNAL ACOUSTIQUE ET APPAREIL AUDITIF

N° et date de publication de la demande

EP0997055 - 03/05/2000

Type de la demande

A1

N° et date de dépôt

EP98929585.2 - 14/07/1998

N° et date de priorité

EP97112125 - 16/07/1997

Famille de brevets

EP0802699A2 ; ATE218025T1 ; NZ502350A ; EP0997055A1 ; DK0997055T3 ; AU7928198A ; JP2001510975A ; CN1267444A ; CA2296414A1 ; WO9904598A1 ; KR20010021877A ; IL133999A ; TR200000119T2 ; DE69805526T2

Abrégé

For beam forming acoustical signals the phase difference of the output signals of two acoustical/electrical transducers is determined (27) and is multiplied by a factor (30). One of the two output signals of the at least two transducers is phase shifted by an amount according to the multiplication result. This phase shifted signal and the signal of the second transducer are led to a signal processing unit, wherein beam forming on these at least two signals is performed. Thereby, it becomes possible to perform beam forming as if the transducers were mutually distant by more than they physically are.