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1. WO2005067348 - AUDIO SIGNAL SUPPLYING APPARATUS FOR SPEAKER ARRAY

Publication Number WO/2005/067348
Publication Date 21.07.2005
International Application No. PCT/JP2005/000158
International Filing Date 04.01.2005
Chapter 2 Demand Filed 04.07.2005
IPC
H04R 1/02 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers
02Casings; Cabinets; Mountings therein
H04R 1/40 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers
20Arrangements for obtaining desired frequency or directional characteristics
32for obtaining desired directional characteristic only
40by combining a number of identical transducers
H04S 1/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
SSTEREOPHONIC SYSTEMS
1Two-channel systems
H04S 7/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
SSTEREOPHONIC SYSTEMS
7Indicating arrangements; Control arrangements, e.g. balance control
CPC
H04R 1/403
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
403loud-speakers
H04R 2205/022
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2205Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
022Plurality of transducers corresponding to a plurality of sound channels in each earpiece of headphones or in a single enclosure
H04R 2205/041
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2205Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
041Adaptation of stereophonic signal reproduction for the hearing impaired
H04R 2430/20
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
H04R 5/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
5Stereophonic arrangements
04Circuit arrangements, ; e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
Applicants
  • ヤマハ株式会社 YAMAHA CORPORATION [JP]/[JP] (AllExceptUS)
  • 小長井 裕介 KONAGAI, Yusuke (UsOnly)
Inventors
  • 小長井 裕介 KONAGAI, Yusuke
Agents
  • 萩野 平 HAGINO, Taira
Priority Data
2004-00067505.01.2004JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) AUDIO SIGNAL SUPPLYING APPARATUS FOR SPEAKER ARRAY
(FR) APPAREIL D'ACHEMINEMENT DE SIGNAUX AUDIO POUR RESEAU DE HAUT-PARLEURS
(JA) スピーカアレイ用のオーディオ信号供給装置
Abstract
(EN)
In a directivity control apparatus for controlling the directivity of an array speaker system, there are preset a first directivity parameter for realizing a narrow directivity and a second directivity parameter for realizing a wide directivity. The directivity control apparatus selects the first or second directivity parameter in accordance with an instruction of selection of the speaker array directivity characteristic inputted via an operating part. The directivity control apparatus then produces, based on the selected directivity parameter, the delay control information to be supplied to the delay circuit and the gain control information to be supplied to the weighting unit.
(FR)
Dans un appareil de commande de directivité, servant à commander la directivité d'un système de haut-parleurs en réseau, un premier paramètre de directivité servant à réaliser une directivité étroite et un deuxième paramètre de directivité servant à réaliser une directivité large sont prédéfinis. L'appareil de commande de directivité sélectionne le premier ou le deuxième paramètre de directivité en fonction d'une instruction de sélection de la caractéristique de directivité du réseau de haut-parleurs, entrée par l'intermédiaire d'une unité fonctionnelle. L'appareil de commande de directivité produit ensuite, en fonction du paramètre de directivité sélectionné, les informations de commande de retard à acheminer au circuit de retard et les informations de commande de gain à acheminer à l'unité de pondération.
(JA)
アレイスピーカシステムの指向性を制御する指向性制御装置には、狭指向性を実現する第1の指向性パラメータと、広指向性を実現する第2の指向性パラメータとがプリセットされている。指向性制御装置は、操作部を介して入力されるスピーカアレイの指向特性の選択指示に従って、第1の指向性パラメータ若しくは第2の指向性パラメータのいずれかを選択する。そして、指向性制御装置は、選択した指向性パラメータに基づき、遅延回路に供給する前記遅延制御情報の生成及び重み付けユニットに供給するゲイン制御情報の生成を行う。
Also published as
US2007165878
Latest bibliographic data on file with the International Bureau