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1. WO2012057589 - MULTI-BEAM SOUND SYSTEM

Publication Number WO/2012/057589
Publication Date 03.05.2012
International Application No. PCT/KR2011/008213
International Filing Date 31.10.2011
IPC
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
G01S 7/52 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
52of systems according to group G01S15/58
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 2201/403
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 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
H04R 2499/13
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2499Aspects covered by H04R or H04S not otherwise provided for in their subgroups
10General applications
13Acoustic transducers and sound field adaptation in vehicles
H04R 3/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3Circuits for transducers ; , loudspeakers or microphones
H04R 3/005
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3Circuits for transducers ; , loudspeakers or microphones
005for combining the signals of two or more microphones
Applicants
  • 주식회사 마이티웍스 MIGHTYWORKS [KR]/[KR] (AllExceptUS)
  • 김세웅 KIM, Se Ung [KR]/[KR] (UsOnly)
Inventors
  • 김세웅 KIM, Se Ung
Agents
  • 심충섭 SHIM, Choong Sup
Priority Data
10-2010-010662529.10.2010KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) MULTI-BEAM SOUND SYSTEM
(FR) SYSTÈME SONORE À FAISCEAUX MULTIPLES
(KO) 멀티 빔 음향시스템
Abstract
(EN)
Disclosed is a multi-beam sound system. The multi-beam sound system comprises: a fixed beam-forming unit which steers an input signal from a microphone array to a desired direction; a blocking matrix which receives the input signal, and acquires a noise reference signal from the received input signal; a variable beam-forming unit which acquires an adaptive noise signal from the noise reference signal outputted from the blocking matrix; and a generalized sidelobe canceller (GSC) having removing means for outputting an object signal in which the adaptive noise signal is removed from the signal outputted from the fixed beam-forming unit. The fixed beam-forming unit steers the input signal in at least two directions.
(FR)
La présente invention concerne un système sonore à faisceaux multiples. Le système sonore à faisceaux multiples comprend : une unité de formation de faisceau fixe qui guide un signal d'entrée provenant d'un réseau de microphones dans une direction souhaitée; une matrice de blocage qui reçoit le signal d'entrée et qui obtient à partir du signal d'entrée reçu un signal de référence de bruit; une unité de formation de faisceau variable qui obtient un signal de bruit adaptatif à partir du signal de référence de bruit émis par la matrice de blocage; et un dispositif d'annulation de lobes latéraux généralisé (GSC) qui présente un moyen de suppression conçu pour émettre un signal d'objet dans lequel le signal de bruit adaptatif est supprimé du signal émis par l'unité de formation de faisceau fixe. Ladite unité de formation de faisceau fixe guide le signal d'entrée dans au moins deux directions.
(KO)
멀티 빔 음향시스템이 개시된다. 상기 멀티 빔 음향시스템은 마이크 어레이로부터 입력되는 입력신호를 원하는 방향으로 조향(steering)하는 고정 빔 형성부, 상기 입력신호를 수신하고 수신된 상기 입력신호로부터 잡음 기준 신호를 획득하기 위한 블록킹 행렬부(blocking matrix), 상기 블록킹 행렬부로부터 출력되는 상기 잡음 기준 신호로부터 적응형 잡음 신호를 획득하기 위한 가변 빔 형성부, 및 상기 고정 빔 형성부로부터 출력된 신호에서 상기 적응형 잡음 신호를 제거한 목적신호를 출력하기 위한 제거수단을 포함하는 GSC(Generald sidelobe Canceller)를 포함하는 특징으로 하며, 상기 고정 빔 형성부는 적어도 두 개의 방향으로 상기 입력신호를 조향하는 것을 특징으로 할 수 있다.
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