JP5259591B2 - 電気音響的トランスデューサー - Google Patents
電気音響的トランスデューサー Download PDFInfo
- Publication number
- JP5259591B2 JP5259591B2 JP2009522948A JP2009522948A JP5259591B2 JP 5259591 B2 JP5259591 B2 JP 5259591B2 JP 2009522948 A JP2009522948 A JP 2009522948A JP 2009522948 A JP2009522948 A JP 2009522948A JP 5259591 B2 JP5259591 B2 JP 5259591B2
- Authority
- JP
- Japan
- Prior art keywords
- electroacoustic
- input
- driver
- signal
- drivers
- 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 - Fee Related
Links
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Images
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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
-
- 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
- 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
- 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
- H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
- H04R1/2873—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself for loudspeaker transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- General Health & Medical Sciences (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Description
= Vi * X21 + Vii * X22 (1a)
12 電気音響トランスデューサー2
13 筐体
14 第1入力
15 第2入力
16 第1フィルタ
17 加算回路
Claims (5)
- キャビネット筐体(13)と、
少なくとも前記キャビネット筐体(13)内で音響的に結合した第1・第2電気音響ドライバー(1,2)と、
を具備し、
前記第1・第2電気音響ドライバー(1,2)は、各電気信号を受信するための第1・第2ドライバー入力をそれぞれ備え、
前記第1ドライバー入力は、第1入力信号が、第1電気ドライブ信号として直接入力され、
前記第2ドライバー入力は、前記第1入力信号が第1伝達特性を有する第1フィルタを通過した信号と逆位相である信号と、第2入力信号と、が加算された第2電気ドライブ信号が入力され、
前記第1伝達特性は、前記第1・第2電気音響ドライバー(1,2)のそれぞれの機械的エクスカーションに基づいて決定され、
前記第1電気ドライブ信号が前記第1ドライバー入力に印加される場合に、音響結合による筐体内の前記第1電気音響ドライバーから第2電気音響ドライバーへの共振は実質的にキャンセルされることを特徴とする電気音響装置。 - 第2電気ドライブ信号が第2ドライバー入力(15)に印加される場合に、音響結合による筐体内の前記第2電気音響ドライバーから第1電気音響ドライバーへの共振を実質的にキャンセルする第2逆相信号が、前記第1ドライバー入力(14)上に提供されることを特徴とする請求項1に記載の電気音響装置。
- 前記第1・第2電気音響ドライバーは、同じ構成であることを特徴とする請求項1または請求項2に記載の電気音響装置。
- 前記第1・第2電気音響ドライバーは、異なる構成であることを特徴とする請求項1または請求項2に記載の電気音響装置。
- 前記筐体(13)は密閉されていることを特徴とする請求項1から4のいずれか1項に記載の電気音響装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/499,014 | 2006-08-04 | ||
US11/499,014 US20080031472A1 (en) | 2006-08-04 | 2006-08-04 | Electroacoustical transducing |
PCT/US2007/074336 WO2008019223A1 (en) | 2006-08-04 | 2007-07-25 | Electroacoustical transducing |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009545926A JP2009545926A (ja) | 2009-12-24 |
JP5259591B2 true JP5259591B2 (ja) | 2013-08-07 |
Family
ID=38740220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009522948A Expired - Fee Related JP5259591B2 (ja) | 2006-08-04 | 2007-07-25 | 電気音響的トランスデューサー |
Country Status (5)
Country | Link |
---|---|
US (2) | US20080031472A1 (ja) |
EP (1) | EP2047711A1 (ja) |
JP (1) | JP5259591B2 (ja) |
CN (1) | CN101491111B (ja) |
WO (1) | WO2008019223A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070297619A1 (en) * | 2006-06-26 | 2007-12-27 | Bose Corporation*Ewc* | Active noise reduction engine speed determining |
US9560448B2 (en) * | 2007-05-04 | 2017-01-31 | Bose Corporation | System and method for directionally radiating sound |
US9100748B2 (en) * | 2007-05-04 | 2015-08-04 | Bose Corporation | System and method for directionally radiating sound |
US20080273724A1 (en) * | 2007-05-04 | 2008-11-06 | Klaus Hartung | System and method for directionally radiating sound |
US8483413B2 (en) * | 2007-05-04 | 2013-07-09 | Bose Corporation | System and method for directionally radiating sound |
US8724827B2 (en) * | 2007-05-04 | 2014-05-13 | Bose Corporation | System and method for directionally radiating sound |
EP2425640B1 (en) * | 2009-05-01 | 2018-08-15 | Bose Corporation | Multi-element electroacoustical transducing |
FR2987256B1 (fr) | 2012-02-24 | 2014-08-08 | Ldr Medical | Dispositif d'ancrage pour implant intervertebral, implant intervertebral et instrumentation d'implantation |
US10382858B1 (en) * | 2018-02-26 | 2019-08-13 | GM Global Technology Operations LLC | System and method for reducing speaker vibration |
CN108471579A (zh) * | 2018-03-22 | 2018-08-31 | 美律电子(深圳)有限公司 | 扬声器装置 |
US10731883B2 (en) * | 2018-08-23 | 2020-08-04 | Qualcomm Incorporated | Air circulation system |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1462372A (en) * | 1921-10-08 | 1923-07-17 | Merrow Machine Co | Edging or border finish |
GB666868A (en) * | 1948-09-03 | 1952-02-20 | Bell Telephone Mfg Company Of | Loudspeaking telephone system |
US2872516A (en) * | 1955-03-25 | 1959-02-03 | James D Hoffman | Speaker assembly |
US4146744A (en) * | 1976-09-02 | 1979-03-27 | Bose Corporation | Low q multiple in phase high compliance driver ported loudspeaker enclosure |
US4146745A (en) * | 1976-09-02 | 1979-03-27 | Bose Corporation | Loudspeaker enclosure with multiple acoustically isolated drivers and a common port |
DE2653454C2 (de) * | 1976-11-25 | 1978-08-24 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Vorrichtung zum elektronischen Erzeugen von Abstrahlerscheinungen eines rotierenden Lautsprechers |
JPS6031310B2 (ja) * | 1977-07-18 | 1985-07-22 | 史良 岡村 | スピ−カ装置 |
JPS6031311B2 (ja) * | 1977-08-24 | 1985-07-22 | 史良 岡村 | スピーカ系 |
US4238746A (en) * | 1978-03-20 | 1980-12-09 | The United States Of America As Represented By The Secretary Of The Navy | Adaptive line enhancer |
ATE146328T1 (de) * | 1990-04-09 | 1996-12-15 | Max Hobelsberger | Vorrichtung zur verbesserung der basswiedergabe bei lautsprechersystemen mit geschlossenen gehäusen |
US5216721A (en) * | 1991-04-25 | 1993-06-01 | Nelson Industries, Inc. | Multi-channel active acoustic attenuation system |
US5809153A (en) * | 1996-12-04 | 1998-09-15 | Bose Corporation | Electroacoustical transducing |
US6275580B1 (en) * | 1998-07-07 | 2001-08-14 | Tellabs Operations, Inc. | Teleconferencing device having acoustic transducers positioned to improve acoustic echo return loss |
JP2004172700A (ja) * | 2002-11-18 | 2004-06-17 | Onkyo Corp | スピーカシステム |
WO2005062671A1 (ja) * | 2003-12-24 | 2005-07-07 | Mitsubishi Denki Kabushiki Kaisha | 携帯端末装置のスピーカ特性補償方法 |
-
2006
- 2006-08-04 US US11/499,014 patent/US20080031472A1/en not_active Abandoned
-
2007
- 2007-07-25 EP EP07799800A patent/EP2047711A1/en not_active Withdrawn
- 2007-07-25 WO PCT/US2007/074336 patent/WO2008019223A1/en active Application Filing
- 2007-07-25 JP JP2009522948A patent/JP5259591B2/ja not_active Expired - Fee Related
- 2007-07-25 CN CN200780027532.2A patent/CN101491111B/zh not_active Expired - Fee Related
-
2013
- 2013-08-19 US US13/970,361 patent/US20140161288A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2009545926A (ja) | 2009-12-24 |
US20080031472A1 (en) | 2008-02-07 |
WO2008019223A1 (en) | 2008-02-14 |
CN101491111A (zh) | 2009-07-22 |
EP2047711A1 (en) | 2009-04-15 |
US20140161288A1 (en) | 2014-06-12 |
CN101491111B (zh) | 2014-01-29 |
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