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; DEAF-AID SETS; 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 (show.php) 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 (show.php)
DE (1) DE3907540A1 (show.php)
GB (1) GB2219712B (show.php)

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

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US5901231A (en) 1995-09-25 1999-05-04 Noise Cancellation Technologies, Inc. Piezo speaker for improved passenger cabin audio systems
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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
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DE19757098C2 (de) * 1997-12-20 2003-01-09 Harman Audio Electronic Sys 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
KR100385388B1 (ko) * 1998-11-05 2003-05-27 마쯔시다덴기산교 가부시키가이샤 압전 스피커, 이의 제조 방법 및 이를 구비한 스피커 시스템
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
CA2396260C (en) * 2000-01-07 2007-09-11 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
EP1259992B1 (en) * 2000-02-23 2011-10-05 SRI International Biologically powered electroactive polymer generators
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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
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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
JP5064384B2 (ja) * 2005-05-31 2012-10-31 エモ・ラブズ・インコーポレーテッド 環境状態に感応するダイアフラム膜及び支持構造
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
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
WO2011162002A1 (ja) 2010-06-25 2011-12-29 京セラ株式会社 音響発生器
US8885853B2 (en) * 2010-07-09 2014-11-11 Yamaha Corporation Electrostatic loudspeaker
JP5812009B2 (ja) * 2010-11-01 2015-11-11 日本電気株式会社 発振装置および電子機器
EP2681748B1 (en) 2011-03-01 2016-06-08 Parker-Hannifin Corp Automated manufacturing processes for producing deformable polymer devices and films
EP2689284A4 (en) 2011-03-22 2014-08-20 Bayer Ip Gmbh ELECTROACTIVE POLYMER ACTUATOR LENS SYSTEM
US9876160B2 (en) 2012-03-21 2018-01-23 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
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
WO2014157351A1 (ja) * 2013-03-28 2014-10-02 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
USD784299S1 (en) * 2015-04-30 2017-04-18 Shure Acquisition Holdings, Inc. Array microphone assembly
US9554207B2 (en) 2015-04-30 2017-01-24 Shure Acquisition Holdings, Inc. Offset cartridge microphones
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
CN112889296B (zh) 2018-09-20 2025-01-10 舒尔获得控股公司 用于阵列麦克风的可调整的波瓣形状
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
EP3942842A1 (en) 2019-03-21 2022-01-26 Shure Acquisition Holdings, Inc. Housings and associated design features for ceiling array microphones
US11445294B2 (en) 2019-05-23 2022-09-13 Shure Acquisition Holdings, Inc. Steerable speaker array, system, and method for the same
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
EP4018680A1 (en) 2019-08-23 2022-06-29 Shure Acquisition Holdings, Inc. Two-dimensional microphone array with improved directivity
USD943558S1 (en) 2019-11-01 2022-02-15 Shure Acquisition Holdings, Inc. Housing for ceiling array microphone
WO2021087377A1 (en) 2019-11-01 2021-05-06 Shure Acquisition Holdings, Inc. Proximity 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
JP2024505068A (ja) 2021-01-28 2024-02-02 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 ハイブリッドオーディオビーム形成システム
US12452584B2 (en) 2021-01-29 2025-10-21 Shure Acquisition Holdings, Inc. Scalable conferencing systems and methods
US12289584B2 (en) 2021-10-04 2025-04-29 Shure Acquisition Holdings, Inc. Networked automixer systems and methods
WO2023081645A1 (en) 2021-11-05 2023-05-11 Shure Acquisition Holdings, Inc. Distributed algorithm for automixing speech over wireless networks
US12250526B2 (en) 2022-01-07 2025-03-11 Shure Acquisition Holdings, Inc. Audio beamforming with nulling control system and methods

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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
GB8904637D0 (en) 1989-04-12
GB2219712A (en) 1989-12-13
GB2219712B (en) 1992-02-05

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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