JP2013031214A - 音響導波モードの制御 - Google Patents
音響導波モードの制御 Download PDFInfo
- Publication number
- JP2013031214A JP2013031214A JP2012206674A JP2012206674A JP2013031214A JP 2013031214 A JP2013031214 A JP 2013031214A JP 2012206674 A JP2012206674 A JP 2012206674A JP 2012206674 A JP2012206674 A JP 2012206674A JP 2013031214 A JP2013031214 A JP 2013031214A
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- waveguide
- acoustic
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- 238000000034 method Methods 0.000 claims abstract description 24
- 230000005855 radiation Effects 0.000 claims description 22
- 230000003321 amplification Effects 0.000 claims description 19
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 19
- 230000005284 excitation Effects 0.000 claims description 17
- 230000005236 sound signal Effects 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 20
- 238000005094 computer simulation Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
- H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
-
- 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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/227—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only using transducers reproducing the same frequency band
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
-
- 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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
-
- 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
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
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)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Optical Integrated Circuits (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
【解決手段】二つの開端を有する第一音響導波路と;第二音響導波路と;第一放射面が第一導波路内に放射し、第二放射面が第二導波路内に放射するように配置された第一及び第二放射面を有する音響ドライバとを含む音響装置を提供する。音響ドライバと、二つの開端を備えた音響導波路とを含む音響装置を提供する。また、この音響装置の製造方法を提供する。
【選択図】図9
Description
12 音響ドライバ
14 導波路
16,18,20 開端
22 閉端
Claims (17)
- モードによって特徴付けられる音響導波路と、
直径によってそれぞれ特徴付けられる複数の音響ドライバとを備え、
前記音響ドライバの少なくとも二つが少なくとも直径一つ分だけ離隔して配置されるように、また、前記音響ドライバが、該音響ドライバのそれぞれからの放射が一つのモードを、該一つのモードに対応するモード関数がゼロではない前記導波路内の位置に励起するように、前記導波路内に放射するように、そして、前記一つのモードの全励起が実質的にゼロであるように、前記音響ドライバが前記導波路内に固定されている装置。 - 前記複数の音響ドライバは二つの音響ドライバであり、
第一音響ドライバの位置でのモード関数の大きさは第二音響ドライバの位置でのモード関数の大きさに等しく、該第一音響ドライバの位置と該第二音響ドライバの位置でのモード関数の値の符号は逆である請求項1に記載の装置。 - 前記複数の音響ドライバは二つよりも多くの音響ドライバである請求項1に記載の装置。
- 前記音響ドライバのそれぞれからの放射が他のモードを該他のモードに対応するモード関数がゼロではない前記導波路内の位置に励起するように、そして、前記他のモードの全励起が実質的にゼロであるように、前記複数の音響ドライバは前記導波路内に固定され、前記導波路内に放射する請求項1に記載の装置。
- 前記音響導波路は開‐閉型音響導波路であり、
前記音響導波路が以下の式
に従って配置されている請求項1に記載の装置。 - 前記音響導波路は開‐開型導波路であり、
前記音響導波が以下の式
に従って配置されている請求項1に記載の装置。 - それぞれの前記音響ドライバにオーディオ信号を送信するための回路であり、前記音響ドライバの少なくとも二つに送信される前記オーディオ信号に対して異なる増幅率を与えるための回路を含む回路を更に備えた請求項1に記載の装置。
- 前記回路は前記複数の音響ドライバに対して共通のオーディオ信号を送信する請求項7に記載の装置。
- 前記音響導波路は開‐閉型導波路であり、以下の式
に従って、前記音響ドライバが配置され、前記増幅率が選択されている請求項8に記載の装置。 - 前記音響導波路は開‐開型導波路であり、以下の式
に従って、前記音響ドライバが配置され、前記増幅率が選択されている請求項8に記載の装置。 - 前記導波路は円錐形の導波路であり、前記音響ドライバが、それぞれのモードに対して以下の式
に従って配置されている請求項1に記載の装置。 - 複数の音響ドライバであり、該音響ドライバの少なくとも二つが直径一つ分以上に離隔して配置されている複数の音響ドライバによって、一つのモードに対応するモード関数がゼロではなく、前記一つのモードの全励起が実質的にゼロであるような位置で音響導波路内に放射する段階を備えた、音響導波路を作動させるための方法。
- 前記放射する段階は、他のモードに対応するモード関数がゼロでなく、前記他のモードの全励起が実質的にゼロであるような前記導波路内の位置で、前記複数の音響ドライバによって放射する段階を備えた請求項12に記載の方法。
- 前記導波路は開‐閉型導波路であり、前記放射する段階は以下の式
に従った位置で前記導波路内に放射する段階を備えた請求項12に記載の方法。 - 前記導波路は開‐開型導波路であり、前記放射する段階は以下の式
に従った位置で前記導波路内に放射する段階を備えた請求項12に記載の方法。 - 前記音響ドライバのそれぞれにオーディオ信号を提供する段階と、
前記音響ドライバの少なくとも二つに、前記オーディオ信号に対して異なる増幅率を与える段階とを更に備えた請求項12に記載の方法。 - 前記導波路は円錐形の導波路であり、前記放射する段階は、それぞれのモードに対して以下の式
に従った位置で前記導波路内に放射する段階を備えた請求項12に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/852,903 US7886869B2 (en) | 2007-09-27 | 2007-09-27 | Acoustic waveguide mode controlling |
US11/852,903 | 2007-09-27 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007311233A Division JP5173381B2 (ja) | 2007-09-27 | 2007-11-30 | 音響導波モードの制御 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013031214A true JP2013031214A (ja) | 2013-02-07 |
JP5538502B2 JP5538502B2 (ja) | 2014-07-02 |
Family
ID=40506916
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007311233A Expired - Fee Related JP5173381B2 (ja) | 2007-09-27 | 2007-11-30 | 音響導波モードの制御 |
JP2012206674A Expired - Fee Related JP5538502B2 (ja) | 2007-09-27 | 2012-09-20 | 音響導波モードの制御 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007311233A Expired - Fee Related JP5173381B2 (ja) | 2007-09-27 | 2007-11-30 | 音響導波モードの制御 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7886869B2 (ja) |
EP (1) | EP2196036A2 (ja) |
JP (2) | JP5173381B2 (ja) |
CN (1) | CN101810008B (ja) |
WO (1) | WO2009042383A2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8002078B2 (en) * | 2009-02-19 | 2011-08-23 | Bose Corporation | Acoustic waveguide vibration damping |
DE102013012889B4 (de) | 2013-08-02 | 2016-01-21 | Drazenko Sukalo | Ventiliertes Lautsprechergehäuse mit unterdrückten Raummoden |
US9049517B2 (en) | 2013-09-10 | 2015-06-02 | Bose Corporation | Transmission line loudspeaker |
US9473848B2 (en) | 2013-09-10 | 2016-10-18 | Bose Corporation | Transmission line loudspeaker |
NL2011583C2 (en) * | 2013-10-10 | 2015-04-13 | Wwinn B V | Module, system and method for detecting acoustical failure of a sound source. |
WO2017048943A1 (en) * | 2015-09-17 | 2017-03-23 | Bose Corporation | Acoustic device |
Citations (7)
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JPH01137694U (ja) * | 1988-03-16 | 1989-09-20 | ||
JPH02203699A (ja) * | 1989-02-02 | 1990-08-13 | Sony Corp | スピーカシステム |
JPH02205199A (ja) * | 1989-02-03 | 1990-08-15 | Sony Corp | スピーカシステム |
JPH03217199A (ja) * | 1990-01-23 | 1991-09-24 | Pioneer Electron Corp | ホーン型スピーカ |
JPH05252585A (ja) * | 1991-05-29 | 1993-09-28 | Hughes Aircraft Co | 高能率、低周波スピ−カシステム |
JPH0934472A (ja) * | 1995-07-18 | 1997-02-07 | Shinko Electric Co Ltd | 消音装置 |
JP2002300686A (ja) * | 2001-01-02 | 2002-10-11 | Bose Corp | 電気音響学的な導波管変換 |
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-
2007
- 2007-09-27 US US11/852,903 patent/US7886869B2/en active Active
- 2007-11-30 JP JP2007311233A patent/JP5173381B2/ja not_active Expired - Fee Related
-
2008
- 2008-09-09 EP EP08832881A patent/EP2196036A2/en not_active Withdrawn
- 2008-09-09 CN CN2008801091782A patent/CN101810008B/zh not_active Expired - Fee Related
- 2008-09-09 WO PCT/US2008/075686 patent/WO2009042383A2/en active Application Filing
-
2012
- 2012-09-20 JP JP2012206674A patent/JP5538502B2/ja not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH01137694U (ja) * | 1988-03-16 | 1989-09-20 | ||
JPH02203699A (ja) * | 1989-02-02 | 1990-08-13 | Sony Corp | スピーカシステム |
JPH02205199A (ja) * | 1989-02-03 | 1990-08-15 | Sony Corp | スピーカシステム |
JPH03217199A (ja) * | 1990-01-23 | 1991-09-24 | Pioneer Electron Corp | ホーン型スピーカ |
JPH05252585A (ja) * | 1991-05-29 | 1993-09-28 | Hughes Aircraft Co | 高能率、低周波スピ−カシステム |
JPH0934472A (ja) * | 1995-07-18 | 1997-02-07 | Shinko Electric Co Ltd | 消音装置 |
JP2002300686A (ja) * | 2001-01-02 | 2002-10-11 | Bose Corp | 電気音響学的な導波管変換 |
Also Published As
Publication number | Publication date |
---|---|
EP2196036A2 (en) | 2010-06-16 |
JP5173381B2 (ja) | 2013-04-03 |
CN101810008B (zh) | 2013-03-27 |
US7886869B2 (en) | 2011-02-15 |
CN101810008A (zh) | 2010-08-18 |
JP5538502B2 (ja) | 2014-07-02 |
US20090084625A1 (en) | 2009-04-02 |
WO2009042383A3 (en) | 2009-07-16 |
JP2009089342A (ja) | 2009-04-23 |
WO2009042383A2 (en) | 2009-04-02 |
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