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1. WO2005004532 - SYSTEME MAINS LIBRES UTILISE DANS UN VEHICULE

Numéro de publication WO/2005/004532
Date de publication 13.01.2005
N° de la demande internationale PCT/EP2004/007110
Date du dépôt international 30.06.2004
CIB
H04R 1/40 2006.01
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
RHAUT-PARLEURS, MICROPHONES, TÊTES DE LECTURE POUR TOURNE-DISQUES OU TRANSDUCTEURS ACOUSTIQUES ÉLECTROMÉCANIQUES ANALOGUES; APPAREILS POUR SOURDS; SYSTÈMES D'ANNONCE EN PUBLIC
1Détails des transducteurs
20Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles
32pour obtenir la caractéristique directionnelle désirée uniquement
40en combinant plusieurs transducteurs identiques
H04R 3/00 2006.01
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
RHAUT-PARLEURS, MICROPHONES, TÊTES DE LECTURE POUR TOURNE-DISQUES OU TRANSDUCTEURS ACOUSTIQUES ÉLECTROMÉCANIQUES ANALOGUES; APPAREILS POUR SOURDS; SYSTÈMES D'ANNONCE EN PUBLIC
3Circuits pour transducteurs
CPC
H04R 1/406
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
20Arrangements for obtaining desired frequency or directional characteristics
32for obtaining desired directional characteristic only
40by combining a number of identical transducers
406microphones
H04R 2201/401
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2201Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
40Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
4012D or 3D arrays of transducers
H04R 2201/403
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2201Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
40Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
403Linear arrays of transducers
H04R 2201/405
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2201Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
40Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
405Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing
H04R 2430/23
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2430Signal processing covered by H04R, not provided for in its groups
20Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
23Direction finding using a sum-delay beam-former
H04R 2430/25
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2430Signal processing covered by H04R, not provided for in its groups
20Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
25Array processing for suppression of unwanted side-lobes in directivity characteristics, e.g. a blocking matrix
Déposants
  • HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH [DE/DE]; Becker-Goering-Strasse 16 76307 Karlsbad, DE (AllExceptUS)
  • CHRISTOPH, Markus [DE/DE]; DE (UsOnly)
Inventeurs
  • CHRISTOPH, Markus; DE
Mandataires
  • WEIGELT, Udo; Grünecker, Kinkeldey, Stockmair & Schwanhäusser Maximilianstrasse 58 80538 München, DE
Données relatives à la priorité
03014846.430.06.2003EP
Langue de publication anglais (EN)
Langue de dépôt anglais (EN)
États désignés
Titre
(EN) HANDSFREE SYSTEM FOR USE IN A VEHICLE
(FR) SYSTEME MAINS LIBRES UTILISE DANS UN VEHICULE
Abrégé
(EN)
The invention is directed to a handsfree system for use in a vehicle comprising a microphone array with at least two microphones and a signal processing means wherein the signal processing means comprises the superdirective beamformer with fixed superdirective filters.
(FR)
Cette invention porte sur un système mains libres utilisé dans un véhicule et comprenant un ensemble de microphones comprenant au moins deux microphones et une unité de traitement de signaux, laquelle unité de traitement de signaux comprend un formeur de faisceaux superdirectif muni de filtres superdirectifs fixes.
Également publié en tant que
US2007127736
Dernières données bibliographiques dont dispose le Bureau international