WO2004019652A3 - Lautsprecher - Google Patents

Lautsprecher Download PDF

Info

Publication number
WO2004019652A3
WO2004019652A3 PCT/EP2003/009036 EP0309036W WO2004019652A3 WO 2004019652 A3 WO2004019652 A3 WO 2004019652A3 EP 0309036 W EP0309036 W EP 0309036W WO 2004019652 A3 WO2004019652 A3 WO 2004019652A3
Authority
WO
WIPO (PCT)
Prior art keywords
membrane
installation
borne noise
excitation device
loudspeaker
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.)
Ceased
Application number
PCT/EP2003/009036
Other languages
English (en)
French (fr)
Other versions
WO2004019652A2 (de
Inventor
Daniel Beer
Berthold Schlenker
Sandra Brix
Thomas Sporer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Priority to EP03792319A priority Critical patent/EP1506691B1/de
Priority to HK05107004.4A priority patent/HK1074963B/xx
Priority to DE50301564T priority patent/DE50301564D1/de
Priority to AT03792319T priority patent/ATE308867T1/de
Priority to JP2004530150A priority patent/JP4007453B2/ja
Publication of WO2004019652A2 publication Critical patent/WO2004019652A2/de
Publication of WO2004019652A3 publication Critical patent/WO2004019652A3/de
Priority to US11/046,123 priority patent/US7391879B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/07—Loudspeakers using bending wave resonance and pistonic motion to generate sound
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/13—Application of wave-field synthesis in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Liquid Crystal (AREA)
  • Surgical Instruments (AREA)

Abstract

Ein erfindungsgemäßer Lautsprecher umfaßt eine Membran, eine erste Erregungseinrichtung (14) zur Erregung von Körperschall in der Membran (12) und eine zweite, von der ersten unterschiedlichen, Erregungseinrichtung (16) zum Versetzen der Membran (12) in eine longitudinale Schwingungsbewegung in Richtung senkrecht zur Membranausdehnung. Erfindungsgemäß wird das Problem der zu geringen Tieftonwiedergabe bzw. der der unsichtbaren Integration bzw. Installation entgegenstehende Größe dadurch gelöst, daß ein zweites Erregersystem eingeführt wird, welches die Membran (12) bzw. die als Membran dienende Platte zusätzlich zu den Biegeschwingungen des Körperschalls einheitlich vor und zurück bewegt. Die Schallwiedergabe ist dadurch über den gesamten Hörfrequenzbereich möglich, ohne daß das Ziel der unsichtbaren Integration bzw. Installation behindert wird.
PCT/EP2003/009036 2002-08-16 2003-08-14 Lautsprecher Ceased WO2004019652A2 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP03792319A EP1506691B1 (de) 2002-08-16 2003-08-14 Lautsprecher
HK05107004.4A HK1074963B (en) 2002-08-16 2003-08-14 Loudspeaker
DE50301564T DE50301564D1 (de) 2002-08-16 2003-08-14 Lautsprecher
AT03792319T ATE308867T1 (de) 2002-08-16 2003-08-14 Lautsprecher
JP2004530150A JP4007453B2 (ja) 2002-08-16 2003-08-14 ラウドスピーカー
US11/046,123 US7391879B2 (en) 2002-08-16 2005-01-28 Loudspeaker

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10238325.1 2002-08-16
DE10238325A DE10238325A1 (de) 2002-08-16 2002-08-16 Lautsprecher

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/046,123 Continuation US7391879B2 (en) 2002-08-16 2005-01-28 Loudspeaker

Publications (2)

Publication Number Publication Date
WO2004019652A2 WO2004019652A2 (de) 2004-03-04
WO2004019652A3 true WO2004019652A3 (de) 2004-04-08

Family

ID=31501845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/009036 Ceased WO2004019652A2 (de) 2002-08-16 2003-08-14 Lautsprecher

Country Status (6)

Country Link
US (1) US7391879B2 (de)
EP (1) EP1506691B1 (de)
JP (1) JP4007453B2 (de)
AT (1) ATE308867T1 (de)
DE (2) DE10238325A1 (de)
WO (1) WO2004019652A2 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004028664A1 (de) * 2004-06-12 2006-01-19 Puren Gmbh Schwingungskörper eines Lautsprechersystems
KR100698256B1 (ko) 2004-07-16 2007-03-22 엘지전자 주식회사 디스플레이 윈도우를 이용한 스피커 장치
US7650003B1 (en) * 2004-12-15 2010-01-19 Hines L Duwayne Flat panel speaker and components therefor
DE102005011747B3 (de) * 2005-03-11 2006-06-29 Benteler Automobiltechnik Gmbh Aktiver Abgasschalldämpfer
DE102005019459B3 (de) * 2005-04-25 2006-07-13 Benteler Automobiltechnik Gmbh Aktiver Ansaugschalldämpfer
EP1876419B1 (de) * 2006-07-03 2008-10-15 Continental Automotive GmbH Wasserdichte Navigationsvorrichtung
US20080080734A1 (en) * 2006-10-03 2008-04-03 Forth Robert A Sports audio player and two-way voice/data communication device
US8139795B2 (en) * 2006-10-13 2012-03-20 Airbus Deutschland Gmbh Loudspeaker system for aircraft cabin
DE102007003164A1 (de) * 2007-01-22 2008-07-24 Siemens Ag Akustische Wiedergabevorrichtung und Verfahren zur Wiedergabe eines akustischen Signals
WO2008136822A2 (en) * 2007-05-03 2008-11-13 Agere Systems Inc. Integrated audiovisual output device
JP4506859B2 (ja) * 2008-03-14 2010-07-21 ソニー株式会社 音声出力装置
MX2011003931A (es) * 2008-10-14 2011-06-21 Pioneer Corp Dispositivo de altavoz.
FR2964761B1 (fr) * 2010-09-14 2012-08-31 Thales Sa Dispositif d'interaction haptique et procede de generation d'effets haptiques et sonores
US10638617B2 (en) * 2010-10-19 2020-04-28 Nokia Technologies Oy Display apparatus
US8965022B2 (en) 2012-03-30 2015-02-24 Hewlett-Packard Development Company, L.P. Personalized display
CN103024635A (zh) * 2012-12-18 2013-04-03 广东工业大学 一种超弹性合金振膜扬声器
US20150010173A1 (en) * 2013-07-05 2015-01-08 Qualcomm Incorporated Apparatus and method for providing a frequency response for audio signals
GB2517721A (en) * 2013-08-29 2015-03-04 Nokia Corp Speaker apparatus
FR3033468B1 (fr) 2015-03-02 2018-04-13 Commissariat A L'energie Atomique Et Aux Energies Alternatives Dispositif a membranes actionnables et haut-parleur digital comportant au moins un tel dispositif
GB2560878B (en) * 2017-02-24 2021-10-27 Google Llc A panel loudspeaker controller and a panel loudspeaker
CN107087240A (zh) * 2017-06-16 2017-08-22 深圳市禾音视频科技有限公司 一种阵列音箱系统
US10631091B1 (en) * 2019-02-28 2020-04-21 Google Llc Bending actuators and panel audio loudspeakers including the same
EP3939709B1 (de) * 2019-03-14 2024-10-23 Alps Alpine Co., Ltd. Vibrationserzeugungsvorrichtung
RU2743892C1 (ru) * 2020-06-16 2021-03-01 Сотис АГ Плоский громкоговоритель
CN112929776B (zh) * 2021-01-21 2022-01-04 深圳市悦尔声学有限公司 一种改善耳机音效效果的扬声器
CN119152886A (zh) * 2024-09-24 2024-12-17 华电四川发电有限公司宝珠寺水力发电厂 一种水轮机空化识别方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247925A (en) * 1962-03-08 1966-04-26 Lord Corp Loudspeaker
DE19955867A1 (de) * 1999-11-22 2001-06-21 Harman Audio Electronic Sys Flachlautsprecheranordnung für Tieftonwiedergabe
US20020027999A1 (en) * 1995-09-02 2002-03-07 New Transducers Limited Acoustic device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE484872C (de) 1929-10-26 Bothe & Bauch Einrichtung fuer akustische Schaufensterreklame
DE465189C (de) * 1927-06-11 1929-10-21 Wilhelm Bauch Einrichtung fuer akustische Schaufensterreklame
DE484409C (de) * 1928-09-02 1929-12-18 Bothe & Bauch Einrichtung fuer akustische Schaufensterreklame
US3651283A (en) * 1968-12-18 1972-03-21 Audio Arts Inc Loudspeaker having elongated rectangular moving coil
JPS6194499A (ja) 1984-10-15 1986-05-13 Matsushita Electric Ind Co Ltd 複合形平面スピ−カ
DE19541197A1 (de) * 1995-11-04 1997-05-07 Nokia Deutschland Gmbh Anordnung zur Abstrahlung von Schallwellen
US6522760B2 (en) * 1996-09-03 2003-02-18 New Transducers Limited Active acoustic devices
JP3365613B2 (ja) 1998-01-30 2003-01-14 日本ビクター株式会社 デジタル信号再生装置
JP2001238285A (ja) 1999-12-13 2001-08-31 Shinsei Kk ハイブリッド型スピーカ
DE19960082A1 (de) * 1999-12-13 2001-07-05 Translife Gmbh Lautsprecher
US20020018578A1 (en) * 2000-08-03 2002-02-14 Paul Burton Bending wave loudspeaker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247925A (en) * 1962-03-08 1966-04-26 Lord Corp Loudspeaker
US20020027999A1 (en) * 1995-09-02 2002-03-07 New Transducers Limited Acoustic device
DE19955867A1 (de) * 1999-11-22 2001-06-21 Harman Audio Electronic Sys Flachlautsprecheranordnung für Tieftonwiedergabe

Also Published As

Publication number Publication date
US7391879B2 (en) 2008-06-24
JP2006500803A (ja) 2006-01-05
DE10238325A1 (de) 2004-03-11
JP4007453B2 (ja) 2007-11-14
EP1506691B1 (de) 2005-11-02
US20050157905A1 (en) 2005-07-21
HK1074963A1 (en) 2005-11-25
WO2004019652A2 (de) 2004-03-04
DE50301564D1 (de) 2005-12-08
EP1506691A2 (de) 2005-02-16
ATE308867T1 (de) 2005-11-15

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