JP4392248B2 - トランスデューサのビーム形成アレイ - Google Patents
トランスデューサのビーム形成アレイ Download PDFInfo
- Publication number
- JP4392248B2 JP4392248B2 JP2003577371A JP2003577371A JP4392248B2 JP 4392248 B2 JP4392248 B2 JP 4392248B2 JP 2003577371 A JP2003577371 A JP 2003577371A JP 2003577371 A JP2003577371 A JP 2003577371A JP 4392248 B2 JP4392248 B2 JP 4392248B2
- Authority
- JP
- Japan
- Prior art keywords
- array
- dimensional array
- sub
- transducers
- arrays
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/22—Antenna units of the array energised non-uniformly in amplitude or phase, e.g. tapered array or binomial array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details 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
- H04R2201/401—2D or 3D arrays of transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details 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
- H04R2201/405—Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- General Health & Medical Sciences (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Circuit For Audible Band Transducer (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Description
従来技術のアレイは、ランダムアレイおよび対数螺旋アレイなどの不規則アレイを含んで、上述の要求を満たすことを追求して設計されてきた。
US 6 205 224は、円対称の平面状アレイを開示している。そのトランスデューサ要素は、複数の同一な対数螺旋上で、螺旋が指定された直径の同心円と交差する位置に配置されている。
本発明のアレイは、アレイのトランスデューサを動作させるための適切な電子回路を備えるフェイズドアレイとして使用可能である。
図1は、平面状、すなわち二次元のマイクロフォン10のアレイを示しており、各マイクロフォン10の理想の位置が円で記されている。マイクロフォンは、好ましくは、一様な物理的および音響的特性を有し、マイクロフォン10はサブアレイ11内に配置されている。図示した実施形態では、各サブアレイ内に6個のマイクロフォン10を備える7個のサブアレイ11がある。各サブアレイ11内では、マイクロフォン10は、直線12上に配置されている。サブアレイ11は、共通中心Cの周りの回転または円対称性が得られるように、共通中心Cの周りに一様に分散配置されている。円対称性は、ストラクチャが中心Cの周りに360度を通って回転するとき、整数倍繰り返し現れることを意味する。7個のサブアレイを備える図示した実施形態では、ストラクチャは、360/7度の角度またはその整数倍を通る回転によって、繰り返し現れる。直線12は、中心Cから距離dだけ横方向に偏移しており、それによって、サブアレイの直線のいずれも中心Cを通過しない。
Claims (9)
- 複数のトランスデューサ(10)の2次元アレイであって、共通中心(C)の周りの円対称配置でのトランスデューサの第1の複数の類似のサブアレイ(11、11a、11b)を備え、第1の複数の各サブアレイ内のトランスデューサが、第1の下限および第1の上限を備える累進的な距離の数列を形成する共通中心(C)からの個々の距離を有し、
第1の複数のサブアレイ内の各サブアレイ(11、11a、11b)が、第1の直線(12)上に配置された少なくとも3つのトランスデューサ(10)を備えることを特徴とする2次元アレイ。 - 請求項1に記載の2次元アレイであって、第1の直線(12)が、共通中心(C)から第1の距離(d)だけ横方向に偏移している2次元アレイ。
- 請求項1乃至2の何れか1項に記載の2次元アレイにおいて、サブアレイ(11、11a、11b)の数が奇数であることを特徴とする2次元アレイ。
- 請求項1乃至3の何れか1項に記載の2次元アレイにおいて、サブアレイ(11、11a、11b)が、2次元アレイを形成するために選択的に組立てることができ、選択的に分解することができる別個のユニットであることを特徴とする2次元アレイ。
- 請求項4に記載の2次元アレイにおいて、各サブアレイ(11、11a、11b)内のトランスデューサ(10)が、それぞれ別個のユニット上の共通のプラグ(16)と接続され、共通のプラグがケーブル(17、18)と接続可能であることを特徴とする2次元アレイ。
- 請求項1乃至5の何れか1項に記載の2次元アレイにおいて、共通中心(C)の周りの円対称配置でのトランスデューサ(10)の第2の複数の類似のサブアレイ(11b)を備え、第2の複数の各サブアレイ(11b)内のトランスデューサ(10)が、第2の下限および第2の上限を備える累進的な距離の数列を形成する共通中心(C)からの個々の距離を有し、
第2の複数のサブアレイの各サブアレイ(11b)が、第2の直線上に配置された少なくとも3つのトランスデューサ(10)を備えることを特徴とする2次元アレイ。 - 請求項6に記載の2次元アレイにおいて、第2の複数のサブアレイ(11b)の数が奇数であり、第2の直線が共通中心から第2の距離(d)だけ偏移していることを特徴とする2次元アレイ。
- 請求項6及び7の何れか1項に記載の2次元アレイにおいて、第2の複数のサブアレイ(11b)が、2次元アレイを形成するために選択的に組立てられ、選択的に分解することができる別個のユニットであることを特徴とする2次元アレイ。
- 請求項8に記載の2次元アレイにおいて、第2の複数の各サブアレイ内のトランスデューサが、それぞれ別個のユニット上の共通のプラグ(16)と接続され、共通のプラグがケーブル(17、18)と接続可能であることを特徴とする2次元アレイ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK200200412A DK174558B1 (da) | 2002-03-15 | 2002-03-15 | Stråleformende transducer-antennesystem |
PCT/DK2003/000166 WO2003079486A1 (en) | 2002-03-15 | 2003-03-14 | Beam forming array of transducers |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2005521283A JP2005521283A (ja) | 2005-07-14 |
JP2005521283A5 JP2005521283A5 (ja) | 2006-05-18 |
JP4392248B2 true JP4392248B2 (ja) | 2009-12-24 |
Family
ID=8161229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003577371A Expired - Lifetime JP4392248B2 (ja) | 2002-03-15 | 2003-03-14 | トランスデューサのビーム形成アレイ |
Country Status (7)
Country | Link |
---|---|
US (1) | US7098865B2 (ja) |
EP (1) | EP1485968B1 (ja) |
JP (1) | JP4392248B2 (ja) |
AT (1) | ATE511707T1 (ja) |
AU (1) | AU2003214025A1 (ja) |
DK (1) | DK174558B1 (ja) |
WO (1) | WO2003079486A1 (ja) |
Families Citing this family (46)
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US8320596B2 (en) * | 2005-07-14 | 2012-11-27 | Yamaha Corporation | Array speaker system and array microphone system |
TW200734888A (en) * | 2006-03-01 | 2007-09-16 | Univ Nat Chiao Tung | Visualization system of acoustic source energy distribution and the method thereof |
FR2899341B1 (fr) * | 2006-03-29 | 2008-06-20 | Microdb Sa | Dispositif de localisation acoustique et de mesure de leur intensite |
JP5338040B2 (ja) * | 2007-06-04 | 2013-11-13 | ヤマハ株式会社 | 音声会議装置 |
KR100921368B1 (ko) * | 2007-10-10 | 2009-10-14 | 충남대학교산학협력단 | 이동형 마이크로폰 어레이를 이용한 소음원 위치 판별정밀도 개선 시스템 및 방법 |
JP4983630B2 (ja) * | 2008-02-05 | 2012-07-25 | ヤマハ株式会社 | 放収音装置 |
US8199987B2 (en) * | 2008-05-08 | 2012-06-12 | Chrysler Group Llc | Acoustographic diagnosis of abnormalities |
WO2010003837A1 (en) * | 2008-07-08 | 2010-01-14 | Brüel & Kjær Sound & Vibration Measurement A/S | Reconstructing an acoustic field |
US8009507B2 (en) * | 2009-01-09 | 2011-08-30 | The Boeing Company | System and method for adaptable aperture planar phased array |
JP2011055413A (ja) * | 2009-09-04 | 2011-03-17 | Nec Toshiba Space Systems Ltd | ラジアルラインスロットアレイアンテナの広帯域化 |
DE102009029503A1 (de) * | 2009-09-16 | 2011-03-24 | Robert Bosch Gmbh | Radarsensorvorrichtung mit wenigstens einer planaren Antenneneinrichtung |
EP2510404B1 (en) * | 2009-12-11 | 2019-05-22 | Sorama Holding B.V. | Acoustic transducer assembly |
FR2971341B1 (fr) * | 2011-02-04 | 2014-01-24 | Microdb | Dispositif de localisation acoustique |
FR2981800B1 (fr) * | 2011-10-20 | 2013-11-29 | Dyva | Antenne destinee a porter un reseau de transducteurs et procede de montage d'une telle antenne |
JP6464080B2 (ja) * | 2012-05-31 | 2019-02-06 | ユニバーシティ・オブ・ミシシッピ | 過渡音響信号を検出するためのシステムおよび方法 |
EP2744221B1 (en) | 2012-12-12 | 2016-02-10 | Sennheiser Communications A/S | Microphone boom |
FR3000862B1 (fr) * | 2013-01-08 | 2015-01-09 | ACB Engineering | Dispositifs passifs d'acquisition acoustique large bande et systemes passifs d'imagerie acoustique large bande. |
WO2014156292A1 (ja) | 2013-03-29 | 2014-10-02 | 日産自動車株式会社 | 音源探査用マイクロホン支持装置 |
US9565493B2 (en) | 2015-04-30 | 2017-02-07 | Shure Acquisition Holdings, Inc. | Array microphone system and method of assembling the same |
US9554207B2 (en) | 2015-04-30 | 2017-01-24 | Shure Acquisition Holdings, Inc. | Offset cartridge microphones |
US10602265B2 (en) * | 2015-05-04 | 2020-03-24 | Rensselaer Polytechnic Institute | Coprime microphone array system |
US10818162B2 (en) * | 2015-07-16 | 2020-10-27 | Ultrahaptics Ip Ltd | Calibration techniques in haptic systems |
US20170366897A1 (en) * | 2016-06-15 | 2017-12-21 | Robert Azarewicz | Microphone board for far field automatic speech recognition |
US10367948B2 (en) | 2017-01-13 | 2019-07-30 | Shure Acquisition Holdings, Inc. | Post-mixing acoustic echo cancellation systems and methods |
EP3425925A1 (en) * | 2017-07-07 | 2019-01-09 | Harman Becker Automotive Systems GmbH | Loudspeaker-room system |
CN111543066A (zh) * | 2018-03-02 | 2020-08-14 | 索尼公司 | 麦克风阵列、记录装置和方法以及程序 |
US11307285B2 (en) | 2018-03-19 | 2022-04-19 | Seven Bel Gmbh | Apparatus, system and method for spatially locating sound sources |
EP3804356A1 (en) | 2018-06-01 | 2021-04-14 | Shure Acquisition Holdings, Inc. | Pattern-forming microphone array |
US11297423B2 (en) | 2018-06-15 | 2022-04-05 | Shure Acquisition Holdings, Inc. | Endfire linear array microphone |
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CN113841419A (zh) | 2019-03-21 | 2021-12-24 | 舒尔获得控股公司 | 天花板阵列麦克风的外壳及相关联设计特征 |
EP3973716A1 (en) | 2019-05-23 | 2022-03-30 | Shure Acquisition Holdings, Inc. | Steerable speaker array, system, and method for the same |
US11302347B2 (en) | 2019-05-31 | 2022-04-12 | Shure Acquisition Holdings, Inc. | Low latency automixer integrated with voice and noise activity detection |
JP7392969B2 (ja) | 2019-08-19 | 2023-12-06 | 株式会社オーディオテクニカ | マイクロホン位置決定方法 |
EP4018680A1 (en) | 2019-08-23 | 2022-06-29 | Shure Acquisition Holdings, Inc. | Two-dimensional microphone array with improved directivity |
US12028678B2 (en) | 2019-11-01 | 2024-07-02 | Shure Acquisition Holdings, Inc. | Proximity microphone |
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-
2002
- 2002-03-15 DK DK200200412A patent/DK174558B1/da not_active IP Right Cessation
-
2003
- 2003-03-14 US US10/507,753 patent/US7098865B2/en not_active Expired - Lifetime
- 2003-03-14 WO PCT/DK2003/000166 patent/WO2003079486A1/en active Application Filing
- 2003-03-14 AT AT03709670T patent/ATE511707T1/de not_active IP Right Cessation
- 2003-03-14 JP JP2003577371A patent/JP4392248B2/ja not_active Expired - Lifetime
- 2003-03-14 EP EP03709670A patent/EP1485968B1/en not_active Expired - Lifetime
- 2003-03-14 AU AU2003214025A patent/AU2003214025A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1485968B1 (en) | 2011-06-01 |
JP2005521283A (ja) | 2005-07-14 |
WO2003079486A1 (en) | 2003-09-25 |
DK174558B1 (da) | 2003-06-02 |
ATE511707T1 (de) | 2011-06-15 |
US20050225497A1 (en) | 2005-10-13 |
EP1485968A1 (en) | 2004-12-15 |
AU2003214025A1 (en) | 2003-09-29 |
US7098865B2 (en) | 2006-08-29 |
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