DE3907540C2 - - Google Patents

Info

Publication number
DE3907540C2
DE3907540C2 DE3907540A DE3907540A DE3907540C2 DE 3907540 C2 DE3907540 C2 DE 3907540C2 DE 3907540 A DE3907540 A DE 3907540A DE 3907540 A DE3907540 A DE 3907540A DE 3907540 C2 DE3907540 C2 DE 3907540C2
Authority
DE
Germany
Prior art keywords
plastic foam
piezoelectric
drive element
membrane
speaker according
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
Application number
DE3907540A
Other languages
German (de)
English (en)
Other versions
DE3907540A1 (de
Inventor
Tadashi Nagaokakyo Kyoto Jp Takaya
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
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
Priority claimed from JP63143896A external-priority patent/JP2580551B2/ja
Priority claimed from JP63143897A external-priority patent/JPH07105987B2/ja
Priority claimed from JP22068888A external-priority patent/JPH0267900A/ja
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of DE3907540A1 publication Critical patent/DE3907540A1/de
Application granted granted Critical
Publication of DE3907540C2 publication Critical patent/DE3907540C2/de
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
DE3907540A 1988-06-10 1989-03-08 Piezoelektrischer lautsprecher Granted DE3907540A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP63143896A JP2580551B2 (ja) 1988-06-10 1988-06-10 圧電スピーカ
JP63143897A JPH07105987B2 (ja) 1988-06-10 1988-06-10 圧電スピーカ
JP22068888A JPH0267900A (ja) 1988-09-02 1988-09-02 圧電スピーカ

Publications (2)

Publication Number Publication Date
DE3907540A1 DE3907540A1 (de) 1989-12-21
DE3907540C2 true DE3907540C2 (enExample) 1993-06-24

Family

ID=27318731

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3907540A Granted DE3907540A1 (de) 1988-06-10 1989-03-08 Piezoelektrischer lautsprecher

Country Status (3)

Country Link
US (1) US4969197A (enExample)
DE (1) DE3907540A1 (enExample)
GB (1) GB2219712B (enExample)

Cited By (3)

* 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
DE102005033632A1 (de) * 2005-07-19 2007-02-08 Kurt Kojer Lautsprecher
DE102012201884A1 (de) * 2012-02-09 2013-08-14 Robert Bosch Gmbh Schallwandler

Families Citing this family (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE468656B (sv) * 1990-10-19 1993-02-22 Rydborn S A O Anordning foer omvandling av mekanisk paaverkan till en elektrisk signal
US5229744A (en) * 1990-11-27 1993-07-20 Ngk Spark Plug Co., Ltd. Piezoelectric type pager
US5196755A (en) * 1992-04-27 1993-03-23 Shields F Douglas Piezoelectric panel speaker
GB9224292D0 (en) * 1992-11-19 1993-02-17 Flow Research Evaluation Diagn Sonar transducers
US5636270A (en) * 1993-12-30 1997-06-03 Davey; Melville G. Method of producing signals commonly used with telephones
US5641164A (en) * 1994-10-13 1997-06-24 The M2000 Group Inc. Talking trading cards
US5751827A (en) * 1995-03-13 1998-05-12 Primo Microphones, Inc. Piezoelectric speaker
JPH11512256A (ja) * 1995-09-02 1999-10-19 ニュー トランスデューサーズ リミテッド 慣性振動トランスジューサ
US6327369B1 (en) 1995-09-02 2001-12-04 New Transducers Limited Loudspeakers comprising panel-form acoustic radiating elements
MX9801517A (es) 1995-09-02 1998-05-31 New Transducers Ltd Tarjetas de salutacion o similares.
US6266426B1 (en) 1995-09-02 2001-07-24 New Transducers Limited Visual display means incorporating loudspeakers
US6285770B1 (en) 1995-09-02 2001-09-04 New Transducers Limited Noticeboards incorporating loudspeakers
US6304661B1 (en) 1995-09-02 2001-10-16 New Transducers Limited Loudspeakers comprising panel-form acoustic radiating elements
US5901231A (en) 1995-09-25 1999-05-04 Noise Cancellation Technologies, Inc. Piezo speaker for improved passenger cabin audio systems
US5780958A (en) * 1995-11-03 1998-07-14 Aura Systems, Inc. Piezoelectric vibrating device
US5838805A (en) * 1995-11-06 1998-11-17 Noise Cancellation Technologies, Inc. Piezoelectric transducers
US6396197B1 (en) 1995-12-22 2002-05-28 Speaker Acquisition Sub, A Cayman Island Corporation Piezoelectric speaker
US5896000A (en) * 1996-02-09 1999-04-20 Vectron Laboratories, Inc. Mounting for reducing vibration-induced side bands
US6144746A (en) * 1996-02-09 2000-11-07 New Transducers Limited Loudspeakers comprising panel-form acoustic radiating elements
EP0953275A1 (en) * 1996-12-20 1999-11-03 NCT Group, Inc. Electroacoustic transducers comprising vibrating panels
JP3360558B2 (ja) * 1997-01-06 2002-12-24 株式会社村田製作所 圧電型電気音響変換器
JP4388603B2 (ja) 1997-02-07 2009-12-24 エス アール アイ・インターナショナル 弾性誘電体ポリマフィルム音波アクチュエータ
US7320457B2 (en) * 1997-02-07 2008-01-22 Sri International Electroactive polymer devices for controlling fluid flow
US6628040B2 (en) * 2000-02-23 2003-09-30 Sri International Electroactive polymer thermal electric generators
US6812624B1 (en) 1999-07-20 2004-11-02 Sri International Electroactive polymers
US6137890A (en) * 1997-05-06 2000-10-24 Compaq Computer Corporation Lumped parameter resonator of a piezoelectric speaker
JP2002505822A (ja) 1997-06-19 2002-02-19 エヌシーティー グループ インコーポレイテッド ラウドスピーカ組立体
US6278790B1 (en) 1997-11-11 2001-08-21 Nct Group, Inc. Electroacoustic transducers comprising vibrating panels
DE19757098C2 (de) * 1997-12-20 2003-01-09 Harman Audio Electronic Sys Aufhängung für Schallwiedergabeanordnungen nach dem Biegewellenprinzip
DE19757097B4 (de) * 1997-12-20 2004-04-15 Harman Audio Electronic Systems Gmbh Schallwiedergabeanordnung
DE19821862A1 (de) * 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Schallwiedergabeanordnung
DE19825866A1 (de) * 1998-06-10 1999-12-16 Nokia Deutschland Gmbh Plattenlautsprecher
EP0999723B1 (en) * 1998-11-05 2006-03-08 Matsushita Electric Industrial Co., Ltd. Piezoelectric speaker, method for producing the same, and speaker system including the same
US6181797B1 (en) 1999-01-09 2001-01-30 Noise Cancellation Technologies, Inc. Piezo speaker for improved passenger cabin audio systems
US7608989B2 (en) * 1999-07-20 2009-10-27 Sri International Compliant electroactive polymer transducers for sonic applications
US7537197B2 (en) * 1999-07-20 2009-05-26 Sri International Electroactive polymer devices for controlling fluid flow
GB9929731D0 (en) * 1999-12-16 2000-02-09 New Transducers Ltd Acoustic device
US6720708B2 (en) * 2000-01-07 2004-04-13 Lewis Athanas Mechanical-to-acoustical transformer and multi-media flat film speaker
US6911764B2 (en) 2000-02-09 2005-06-28 Sri International Energy efficient electroactive polymers and electroactive polymer devices
AU2001268027A1 (en) * 2000-02-23 2001-09-12 Sri International Biologically powered electroactive polymer generators
BE1013592A3 (nl) * 2000-07-11 2002-04-02 Sonitron Nv Transducent.
EP1229760B1 (en) 2001-01-22 2005-12-28 Matsushita Electric Industrial Co., Ltd. Speaker system
DK1512215T3 (da) * 2002-03-18 2011-12-05 Stanford Res Inst Int Elektroaktive polymeranordning til bevægelse af fluid
GB0221503D0 (en) * 2002-09-17 2002-10-23 1 Ltd Loudspeaker
GB0321292D0 (en) * 2003-09-11 2003-10-15 New Transducers Ltd Transducer
US7475598B2 (en) * 2003-09-11 2009-01-13 New Transducers Limited Electromechanical force transducer
US20060013417A1 (en) * 2004-07-16 2006-01-19 Intier Automotive Inc. Acoustical panel assembly
JP4507252B2 (ja) * 2004-12-27 2010-07-21 シチズン電子株式会社 パネル型スピーカ
GB2426650B (en) 2005-05-25 2011-01-05 Adder Tech Ltd Audio and video signal transmission
WO2006130731A2 (en) * 2005-05-31 2006-12-07 Unison Products Optimized piezo design for a mechanical-to-acoustical transducer
EP2174360A4 (en) 2007-06-29 2013-12-11 Artificial Muscle Inc CONVERTER WITH ELECTROACTIVE POLYMER FOR SENSOR REVIEW APPLICATIONS
WO2009067669A1 (en) * 2007-11-21 2009-05-28 Emo Labs, Inc.. Wireless loudspeaker
US8126170B2 (en) 2008-09-05 2012-02-28 Apple Inc. Electromagnetic interference shields with piezos
US8265329B2 (en) * 2008-09-05 2012-09-11 Apple Inc. Compact housing for portable electronic device with internal speaker
US8189851B2 (en) 2009-03-06 2012-05-29 Emo Labs, Inc. Optically clear diaphragm for an acoustic transducer and method for making same
US20100246143A1 (en) * 2009-03-26 2010-09-30 Richard Hung Minh Dinh Electromagnetic Interference Shielding for Compact Electronic Devices
EP2239793A1 (de) 2009-04-11 2010-10-13 Bayer MaterialScience AG Elektrisch schaltbarer Polymerfilmaufbau und dessen Verwendung
JP4969706B2 (ja) 2010-06-25 2012-07-04 京セラ株式会社 音響発生器
US8885853B2 (en) * 2010-07-09 2014-11-11 Yamaha Corporation Electrostatic loudspeaker
US8824708B2 (en) * 2010-11-01 2014-09-02 Nec Casio Mobile Communications, Ltd. Oscillation device and electronic apparatus
WO2012118916A2 (en) 2011-03-01 2012-09-07 Bayer Materialscience Ag Automated manufacturing processes for producing deformable polymer devices and films
CN103703404A (zh) 2011-03-22 2014-04-02 拜耳知识产权有限责任公司 电活化聚合物致动器双凸透镜系统
EP2828901B1 (en) 2012-03-21 2017-01-04 Parker Hannifin Corporation Roll-to-roll manufacturing processes for producing self-healing electroactive polymer devices
US9761790B2 (en) 2012-06-18 2017-09-12 Parker-Hannifin Corporation Stretch frame for stretching process
US9590193B2 (en) 2012-10-24 2017-03-07 Parker-Hannifin Corporation Polymer diode
US9226078B2 (en) 2013-03-15 2015-12-29 Emo Labs, Inc. Acoustic transducers
JP6005093B2 (ja) * 2013-03-28 2016-10-12 富士フイルム株式会社 電気音響変換フィルム、電気音響変換器、フレキシブルディスプレイおよびプロジェクター用スクリーン
USD733678S1 (en) 2013-12-27 2015-07-07 Emo Labs, Inc. Audio speaker
USD741835S1 (en) 2013-12-27 2015-10-27 Emo Labs, Inc. Speaker
USD748072S1 (en) 2014-03-14 2016-01-26 Emo Labs, Inc. Sound bar audio speaker
US9554207B2 (en) 2015-04-30 2017-01-24 Shure Acquisition Holdings, Inc. Offset cartridge microphones
USD784299S1 (en) * 2015-04-30 2017-04-18 Shure Acquisition Holdings, Inc. Array microphone assembly
US9565493B2 (en) 2015-04-30 2017-02-07 Shure Acquisition Holdings, Inc. Array microphone system and method of assembling the same
US10367948B2 (en) 2017-01-13 2019-07-30 Shure Acquisition Holdings, Inc. Post-mixing acoustic echo cancellation systems and methods
US11523212B2 (en) 2018-06-01 2022-12-06 Shure Acquisition Holdings, Inc. Pattern-forming microphone array
US11297423B2 (en) 2018-06-15 2022-04-05 Shure Acquisition Holdings, Inc. Endfire linear array microphone
US11310596B2 (en) 2018-09-20 2022-04-19 Shure Acquisition Holdings, Inc. Adjustable lobe shape for array microphones
CN113841419B (zh) 2019-03-21 2024-11-12 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
CN118803494B (zh) 2019-03-21 2025-09-19 舒尔获得控股公司 具有抑制功能的波束形成麦克风瓣的自动对焦、区域内自动对焦、及自动配置
US11558693B2 (en) 2019-03-21 2023-01-17 Shure Acquisition Holdings, Inc. Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition and voice activity detection functionality
CN114051738B (zh) 2019-05-23 2024-10-01 舒尔获得控股公司 可操纵扬声器阵列、系统及其方法
CN114051637B (zh) 2019-05-31 2025-10-28 舒尔获得控股公司 集成语音及噪声活动检测的低延时自动混波器
CN114467312A (zh) 2019-08-23 2022-05-10 舒尔获得控股公司 具有改进方向性的二维麦克风阵列
US12028678B2 (en) 2019-11-01 2024-07-02 Shure Acquisition Holdings, Inc. Proximity microphone
USD943558S1 (en) 2019-11-01 2022-02-15 Shure Acquisition Holdings, Inc. Housing for ceiling array microphone
USD943559S1 (en) 2019-11-01 2022-02-15 Shure Acquisition Holdings, Inc. Housing for ceiling array microphone
US11552611B2 (en) 2020-02-07 2023-01-10 Shure Acquisition Holdings, Inc. System and method for automatic adjustment of reference gain
USD944776S1 (en) 2020-05-05 2022-03-01 Shure Acquisition Holdings, Inc. Audio device
USD943552S1 (en) 2020-05-05 2022-02-15 Shure Acquisition Holdings, Inc. Audio device
WO2021243368A2 (en) 2020-05-29 2021-12-02 Shure Acquisition Holdings, Inc. Transducer steering and configuration systems and methods using a local positioning system
CN116918351A (zh) 2021-01-28 2023-10-20 舒尔获得控股公司 混合音频波束成形系统
US12452584B2 (en) 2021-01-29 2025-10-21 Shure Acquisition Holdings, Inc. Scalable conferencing systems and methods
US12542123B2 (en) 2021-08-31 2026-02-03 Shure Acquisition Holdings, Inc. Mask non-linear processor for acoustic echo cancellation
WO2023059655A1 (en) 2021-10-04 2023-04-13 Shure Acquisition Holdings, Inc. Networked automixer systems and methods
EP4427465A1 (en) 2021-11-05 2024-09-11 Shure Acquisition Holdings, Inc. Distributed algorithm for automixing speech over wireless networks
WO2023133513A1 (en) 2022-01-07 2023-07-13 Shure Acquisition Holdings, Inc. Audio beamforming with nulling control system and methods

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912605A (en) * 1955-12-05 1959-11-10 Tibbetts Lab Inc Electromechanical transducer
JPS5215972B2 (enExample) * 1974-02-28 1977-05-06
US4430529A (en) * 1980-12-24 1984-02-07 Murata Manufacturing Co., Ltd. Piezoelectric loudspeaker
DE3135096A1 (de) * 1981-02-20 1982-09-09 Apparatebau Wilhelm Heibl Gmbh, 8671 Selbitz Schallgeber mit piezowandler
DE3407980A1 (de) * 1983-04-20 1984-10-25 Tadashi Tokio/Tokyo Sawafuji Kristallschallerzeuger
JPS61264894A (ja) * 1985-05-17 1986-11-22 Mitsubishi Petrochem Co Ltd 平面型スピ−カ−
US4807294A (en) * 1986-06-20 1989-02-21 Mitubishi Petrochemical Co., Ltd. Piezoelectric and foam resin sheet speaker
JPS633700U (enExample) * 1986-06-20 1988-01-11
JP2580547B2 (ja) * 1986-07-09 1997-02-12 株式会社村田製作所 圧電スピ−カ
JPH0416558Y2 (enExample) * 1986-09-16 1992-04-14
JP2630948B2 (ja) * 1987-06-24 1997-07-16 日本特殊陶業株式会社 水中用圧電送受波シート
JPS6444699A (en) * 1987-08-13 1989-02-17 Nitsuko Ltd Piezoelectric speaker
DE3734524A1 (de) * 1987-10-13 1989-04-27 Voith Gmbh J M Lagerzapfen fuer einen hohlen walzenkoerper insbesondere fuer einen trockenzylinder einer papiermaschine

Cited By (4)

* 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
DE102005033632A1 (de) * 2005-07-19 2007-02-08 Kurt Kojer Lautsprecher
DE102005033632B4 (de) * 2005-07-19 2009-08-20 Kurt Kojer Lautsprecher
DE102012201884A1 (de) * 2012-02-09 2013-08-14 Robert Bosch Gmbh Schallwandler

Also Published As

Publication number Publication date
US4969197A (en) 1990-11-06
DE3907540A1 (de) 1989-12-21
GB2219712B (en) 1992-02-05
GB2219712A (en) 1989-12-13
GB8904637D0 (en) 1989-04-12

Similar Documents

Publication Publication Date Title
DE3907540C2 (enExample)
DE69332472T2 (de) Planartyp-lautsprecher mit doppeldichte-membran
DE2946618C2 (enExample)
DE3024815C2 (enExample)
DE2937926A1 (de) Membran fuer elektroakustische wandler
DE2164083B2 (de) Elektrisch dynamischer wandler, insbesondere lautsprecher
DE69601724T2 (de) Grusskarte oder dergleichen mit lautsprecher
EP0054856A1 (de) Stegdoppelplatten
DE2150194A1 (de) Elektroakustischer Wandler
DE2757707A1 (de) Lautsprecher
DE2021656B2 (de) Elektrostatischer Lautsprecher
EP1188547A1 (de) Schallabsorbierende Verbundplatte
EP1078551B1 (de) Plattenlautsprecher
EP0297572B1 (de) Membran für einen Lautsprecher
DE19840375C2 (de) Schallwand
EP0193886A2 (de) Membran für Planarlautsprecher
DE102022110507A1 (de) Mit Korkleder abgedecktes Lautsprechergitter
DE7538667U (de) Lautsprecherkoerper
DE3801054A1 (de) Gehaeuse fuer lautsprechersysteme
DE3513662A1 (de) Schalldaempfeinrichtung
EP0046559B1 (de) Resonatorschallabsorptionselement
DE3413383C1 (de) Mundharmonika
DE19527181A1 (de) Bauteil
DE10303247B4 (de) Kegelförmige Membrane und Lautsprecher
DE102019215172A1 (de) Passivstrahler-vibrationslautsprecher mit phasenumkehrstruktur

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee