DE3907540A1 - Piezoelektrischer lautsprecher - Google Patents

Piezoelektrischer lautsprecher

Info

Publication number
DE3907540A1
DE3907540A1 DE3907540A DE3907540A DE3907540A1 DE 3907540 A1 DE3907540 A1 DE 3907540A1 DE 3907540 A DE3907540 A DE 3907540A DE 3907540 A DE3907540 A DE 3907540A DE 3907540 A1 DE3907540 A1 DE 3907540A1
Authority
DE
Germany
Prior art keywords
piezoelectric
plastic foam
membrane
speaker according
driver
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.)
Granted
Application number
DE3907540A
Other languages
German (de)
English (en)
Other versions
DE3907540C2 (https=
Inventor
Tadashi 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 JP63143897A external-priority patent/JPH07105987B2/ja
Priority claimed from JP63143896A external-priority patent/JP2580551B2/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
JP63143897A JPH07105987B2 (ja) 1988-06-10 1988-06-10 圧電スピーカ
JP63143896A JP2580551B2 (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 true DE3907540A1 (de) 1989-12-21
DE3907540C2 DE3907540C2 (https=) 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 (https=)
DE (1) DE3907540A1 (https=)
GB (1) GB2219712B (https=)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19757097A1 (de) * 1997-12-20 1999-06-24 Nokia Deutschland Gmbh Schallwiedergabeanordnung
DE19757098A1 (de) * 1997-12-20 1999-06-24 Nokia Deutschland Gmbh Aufhängung für Schallwiedergabeanordnungen nach dem Biegewellenprinzip
DE19821862A1 (de) * 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Schallwiedergabeanordnung
DE19825866A1 (de) * 1998-06-10 1999-12-16 Nokia Deutschland Gmbh Plattenlautsprecher

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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
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US5636270A (en) * 1993-12-30 1997-06-03 Davey; Melville G. Method of producing signals commonly used with telephones
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DE69602102T2 (de) * 1995-09-02 1999-09-16 New Transducers Ltd., Huntingdon Inertial schwingungswandler
US6266426B1 (en) 1995-09-02 2001-07-24 New Transducers Limited Visual display means incorporating loudspeakers
US6327369B1 (en) 1995-09-02 2001-12-04 New Transducers Limited Loudspeakers comprising panel-form acoustic radiating elements
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
US6144746A (en) * 1996-02-09 2000-11-07 New Transducers Limited Loudspeakers comprising panel-form acoustic radiating elements
US5896000A (en) * 1996-02-09 1999-04-20 Vectron Laboratories, Inc. Mounting for reducing vibration-induced side bands
AU4955697A (en) * 1996-12-20 1998-07-17 Noise Cancellation Technologies, 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
US7320457B2 (en) * 1997-02-07 2008-01-22 Sri International Electroactive polymer devices for controlling fluid flow
US6812624B1 (en) * 1999-07-20 2004-11-02 Sri International Electroactive polymers
WO1998035529A2 (en) * 1997-02-07 1998-08-13 Sri International Elastomeric dielectric polymer film sonic actuator
US6137890A (en) * 1997-05-06 2000-10-24 Compaq Computer Corporation Lumped parameter resonator of a piezoelectric speaker
WO1998058416A1 (en) 1997-06-19 1998-12-23 Nct Group, Inc. Loudspeaker assembly
US6278790B1 (en) 1997-11-11 2001-08-21 Nct Group, Inc. Electroacoustic transducers comprising vibrating panels
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
US7064472B2 (en) * 1999-07-20 2006-06-20 Sri International Electroactive polymer devices for moving fluid
US7537197B2 (en) * 1999-07-20 2009-05-26 Sri International Electroactive polymer devices for controlling fluid flow
US7608989B2 (en) * 1999-07-20 2009-10-27 Sri International Compliant electroactive polymer transducers for sonic applications
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
EP2290721B1 (en) * 2000-02-23 2017-09-20 SRI International Environmentally powered electroactive polymer generators
WO2001063738A2 (en) * 2000-02-23 2001-08-30 Sri International Electroactive polymer thermal electric generators
BE1013592A3 (nl) * 2000-07-11 2002-04-02 Sonitron Nv Transducent.
DE60208245T2 (de) 2001-01-22 2006-07-13 Matsushita Electric Industrial Co., Ltd., Kadoma Lautsprechersystem
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
DE102004028664A1 (de) * 2004-06-12 2006-01-19 Puren Gmbh Schwingungskörper eines Lautsprechersystems
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
EP1886362A2 (en) * 2005-05-31 2008-02-13 Unison Products Diaphragm membrane and supporting structure responsive to environmental conditions
DE102005033632B4 (de) * 2005-07-19 2009-08-20 Kurt Kojer Lautsprecher
JP5602626B2 (ja) 2007-06-29 2014-10-08 アーティフィシャル マッスル，インク． 感覚性フィードバック用途のための電気活性ポリマートランスデューサー
US20100322455A1 (en) * 2007-11-21 2010-12-23 Emo Labs, Inc. Wireless loudspeaker
US8265329B2 (en) 2008-09-05 2012-09-11 Apple Inc. Compact housing for portable electronic device with internal speaker
US8126170B2 (en) 2008-09-05 2012-02-28 Apple Inc. Electromagnetic interference shields with piezos
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
KR101439193B1 (ko) 2010-06-25 2014-09-12 쿄세라 코포레이션 음향 발생기
KR101445503B1 (ko) * 2010-07-09 2014-09-26 야마하 가부시키가이샤 정전형 스피커
US8824708B2 (en) * 2010-11-01 2014-09-02 Nec Casio Mobile Communications, Ltd. Oscillation device and electronic apparatus
TWI542269B (zh) 2011-03-01 2016-07-11 拜耳材料科學股份有限公司 用於生產可變形聚合物裝置和薄膜的自動化生產方法
KR20140019801A (ko) 2011-03-22 2014-02-17 바이엘 인텔렉쳐 프로퍼티 게엠베하 전기활성 중합체 작동기 렌티큘라 시스템
DE102012201884A1 (de) * 2012-02-09 2013-08-14 Robert Bosch Gmbh Schallwandler
EP2828901B1 (en) 2012-03-21 2017-01-04 Parker Hannifin Corporation Roll-to-roll manufacturing processes for producing self-healing electroactive polymer devices
WO2013192143A1 (en) 2012-06-18 2013-12-27 Bayer Intellectual Property Gmbh Stretch frame for stretching process
WO2014066576A1 (en) 2012-10-24 2014-05-01 Bayer Intellectual Property Gmbh Polymer diode
US9094743B2 (en) 2013-03-15 2015-07-28 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
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
EP3854108B1 (en) 2018-09-20 2025-10-22 Shure Acquisition Holdings, Inc. Adjustable lobe shape for array microphones
JP7572964B2 (ja) 2019-03-21 2024-10-24 シュアー アクイジッション ホールディングス インコーポレイテッド 阻止機能を伴うビーム形成マイクロフォンローブの自動集束、領域内自動集束、および自動配置
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
EP3942842B1 (en) 2019-03-21 2026-03-11 Shure Acquisition Holdings, Inc. Housings and associated design features for ceiling array microphones
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
US11302347B2 (en) 2019-05-31 2022-04-12 Shure Acquisition Holdings, Inc. Low latency automixer integrated with voice and noise activity detection
EP4018680B1 (en) 2019-08-23 2026-04-29 Shure Acquisition Holdings, Inc. Two-dimensional microphone array with improved directivity
USD943559S1 (en) 2019-11-01 2022-02-15 Shure Acquisition Holdings, Inc. Housing for ceiling array microphone
USD943558S1 (en) 2019-11-01 2022-02-15 Shure Acquisition Holdings, Inc. Housing for ceiling array microphone
US12028678B2 (en) 2019-11-01 2024-07-02 Shure Acquisition Holdings, Inc. Proximity 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
US11785380B2 (en) 2021-01-28 2023-10-10 Shure Acquisition Holdings, Inc. Hybrid audio beamforming system
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
CN118216161A (zh) 2021-10-04 2024-06-18 舒尔获得控股公司 联网自动混合器系统及方法
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
US12598261B2 (en) 2022-09-28 2026-04-07 Shure Acquisition Holdings, Inc. Wideband doubletalk detection for optimization of acoustic echo cancellation

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JPS633700U (https=) * 1986-06-20 1988-01-11
US4807294A (en) * 1986-06-20 1989-02-21 Mitubishi Petrochemical Co., Ltd. Piezoelectric and foam resin sheet speaker

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19757097A1 (de) * 1997-12-20 1999-06-24 Nokia Deutschland Gmbh Schallwiedergabeanordnung
DE19757098A1 (de) * 1997-12-20 1999-06-24 Nokia Deutschland Gmbh Aufhängung für Schallwiedergabeanordnungen nach dem Biegewellenprinzip
US6160898A (en) * 1997-12-20 2000-12-12 Nokia Technology Gmbh Suspension mount for sound reproduction devices according to the flexural wave principle
US6275598B1 (en) 1997-12-20 2001-08-14 Harman Electronic Systems Gmbh Sound reproduction device
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
US6622817B1 (en) 1998-05-15 2003-09-23 Harman Audio Electronic Systems Gmbh Sound reproduction device working according to the bending wave principle
DE19825866A1 (de) * 1998-06-10 1999-12-16 Nokia Deutschland Gmbh Plattenlautsprecher
US6836552B1 (en) 1998-06-10 2004-12-28 Harman Audio Electronic Systems Gmbh Panel loudspeakers

Also Published As

Publication number Publication date
GB8904637D0 (en) 1989-04-12
DE3907540C2 (https=) 1993-06-24
GB2219712B (en) 1992-02-05
US4969197A (en) 1990-11-06
GB2219712A (en) 1989-12-13

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Legal Events

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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