DE69422916D1 - Piezoelektrischer niederspannungs-biegeantrieb - Google Patents

Piezoelektrischer niederspannungs-biegeantrieb

Info

Publication number
DE69422916D1
DE69422916D1 DE69422916T DE69422916T DE69422916D1 DE 69422916 D1 DE69422916 D1 DE 69422916D1 DE 69422916 T DE69422916 T DE 69422916T DE 69422916 T DE69422916 T DE 69422916T DE 69422916 D1 DE69422916 D1 DE 69422916D1
Authority
DE
Germany
Prior art keywords
low voltage
bending drive
piezoelectric low
voltage bending
piezoelectric
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
DE69422916T
Other languages
English (en)
Other versions
DE69422916T2 (de
Inventor
Stephen Hildebrand
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.)
NVF Tech Ltd
Original Assignee
Noise Cancellation Technologies Inc
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 Noise Cancellation Technologies Inc filed Critical Noise Cancellation Technologies Inc
Publication of DE69422916D1 publication Critical patent/DE69422916D1/de
Application granted granted Critical
Publication of DE69422916T2 publication Critical patent/DE69422916T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • H10N30/2047—Membrane type
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • H10N30/2047—Membrane type
    • H10N30/2048—Membrane type having non-planar shape
DE69422916T 1993-05-07 1994-05-04 Piezoelektrischer niederspannungs-biegeantrieb Expired - Fee Related DE69422916T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/057,944 US5473214A (en) 1993-05-07 1993-05-07 Low voltage bender piezo-actuators
PCT/US1994/004553 WO1994027331A1 (en) 1993-05-07 1994-05-04 Low voltage bender piezo-actuators

Publications (2)

Publication Number Publication Date
DE69422916D1 true DE69422916D1 (de) 2000-03-09
DE69422916T2 DE69422916T2 (de) 2000-10-05

Family

ID=22013704

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69422916T Expired - Fee Related DE69422916T2 (de) 1993-05-07 1994-05-04 Piezoelektrischer niederspannungs-biegeantrieb

Country Status (5)

Country Link
US (1) US5473214A (de)
EP (1) EP0698298B1 (de)
CA (1) CA2161412C (de)
DE (1) DE69422916T2 (de)
WO (1) WO1994027331A1 (de)

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US6594367B1 (en) 1999-10-25 2003-07-15 Andrea Electronics Corporation Super directional beamforming design and implementation
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US6465931B2 (en) * 2000-03-29 2002-10-15 Qortek, Inc. Device and method for driving symmetric load systems
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DE10023556A1 (de) * 2000-05-15 2001-11-29 Festo Ag & Co Piezo-Biegewandler sowie Verwendung desselben
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US10848118B2 (en) 2004-08-10 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
US11431312B2 (en) 2004-08-10 2022-08-30 Bongiovi Acoustics Llc System and method for digital signal processing
US10158337B2 (en) 2004-08-10 2018-12-18 Bongiovi Acoustics Llc System and method for digital signal processing
US8284955B2 (en) 2006-02-07 2012-10-09 Bongiovi Acoustics Llc System and method for digital signal processing
DE102004046150A1 (de) * 2004-09-23 2006-03-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Schwingungsbeeinflussung eines Flächenelementes
WO2006130782A2 (en) * 2005-05-31 2006-12-07 Unison Products Diaphragm membrane and supporting structure responsive to environmental conditions
FR2893783B1 (fr) * 2005-11-22 2008-02-01 Onera (Off Nat Aerospatiale) Actionneur plan a structure sandwich et application a la torsion de structure
US10069471B2 (en) 2006-02-07 2018-09-04 Bongiovi Acoustics Llc System and method for digital signal processing
US10848867B2 (en) 2006-02-07 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
US10701505B2 (en) 2006-02-07 2020-06-30 Bongiovi Acoustics Llc. System, method, and apparatus for generating and digitally processing a head related audio transfer function
US11202161B2 (en) 2006-02-07 2021-12-14 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function
US9615189B2 (en) 2014-08-08 2017-04-04 Bongiovi Acoustics Llc Artificial ear apparatus and associated methods for generating a head related audio transfer function
US8197431B2 (en) * 2007-09-21 2012-06-12 Baxter International Inc. Acoustic access disconnect detection system
WO2009067669A1 (en) * 2007-11-21 2009-05-28 Emo Labs, Inc.. Wireless loudspeaker
US8192388B2 (en) 2008-07-25 2012-06-05 Baxter International Inc. System and method for detecting access disconnection
US8189851B2 (en) 2009-03-06 2012-05-29 Emo Labs, Inc. Optically clear diaphragm for an acoustic transducer and method for making same
CN105228757A (zh) 2013-03-15 2016-01-06 埃莫实验室公司 具有弯曲限制部件的声换能器
US9264004B2 (en) 2013-06-12 2016-02-16 Bongiovi Acoustics Llc System and method for narrow bandwidth digital signal processing
US9883318B2 (en) 2013-06-12 2018-01-30 Bongiovi Acoustics Llc System and method for stereo field enhancement in two-channel audio systems
US9906858B2 (en) 2013-10-22 2018-02-27 Bongiovi Acoustics Llc System and method for digital signal processing
USD741835S1 (en) 2013-12-27 2015-10-27 Emo Labs, Inc. Speaker
USD733678S1 (en) 2013-12-27 2015-07-07 Emo Labs, Inc. Audio speaker
EP3072168A1 (de) 2014-02-12 2016-09-28 Halliburton Energy Services, Inc. Biegestangenwandler mit gestapelten verkapselten aktuatoren
USD748072S1 (en) 2014-03-14 2016-01-26 Emo Labs, Inc. Sound bar audio speaker
US9615813B2 (en) 2014-04-16 2017-04-11 Bongiovi Acoustics Llc. Device for wide-band auscultation
US10820883B2 (en) 2014-04-16 2020-11-03 Bongiovi Acoustics Llc Noise reduction assembly for auscultation of a body
US10639000B2 (en) 2014-04-16 2020-05-05 Bongiovi Acoustics Llc Device for wide-band auscultation
US9564146B2 (en) 2014-08-01 2017-02-07 Bongiovi Acoustics Llc System and method for digital signal processing in deep diving environment
US9638672B2 (en) 2015-03-06 2017-05-02 Bongiovi Acoustics Llc System and method for acquiring acoustic information from a resonating body
JP2018537910A (ja) 2015-11-16 2018-12-20 ボンジョビ アコースティックス リミテッド ライアビリティー カンパニー 表面音響変換器
US9621994B1 (en) 2015-11-16 2017-04-11 Bongiovi Acoustics Llc Surface acoustic transducer
CN112236812A (zh) 2018-04-11 2021-01-15 邦吉欧维声学有限公司 音频增强听力保护系统
US10959035B2 (en) 2018-08-02 2021-03-23 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function

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US2776020A (en) * 1955-02-09 1957-01-01 Gen Electric Noise reducing system for transformers
US4048454A (en) * 1974-12-02 1977-09-13 Barcus Lester M Sonic transducer employing rigid radiating member
US4158787A (en) * 1978-05-08 1979-06-19 Hughes Aircraft Company Electromechanical transducer-coupled mechanical structure with negative capacitance compensation circuit
US4283461A (en) * 1979-05-31 1981-08-11 The United States Of America As Represented By The Secretary Of The Navy Piezoelectric polymer antifouling coating
US4352961A (en) * 1979-06-15 1982-10-05 Hitachi, Ltd. Transparent flat panel piezoelectric speaker
US4352039A (en) * 1980-07-25 1982-09-28 The United States Of America As Represented By The Secretary Of The Army Sonic transducer
US4363991A (en) * 1980-12-24 1982-12-14 Seymour Edelman Drag modification piezoelectric panels
US4565940A (en) * 1984-08-14 1986-01-21 Massachusetts Institute Of Technology Method and apparatus using a piezoelectric film for active control of vibrations
JP2559589B2 (ja) * 1987-05-26 1996-12-04 株式会社ブリヂストン 吸振装置
FR2614152B1 (fr) * 1987-04-14 1991-06-14 Thomson Csf Procede de compensation d'un circuit a amplificateur de charge notamment pour hydrophone piezoelectrique
US4849668A (en) * 1987-05-19 1989-07-18 Massachusetts Institute Of Technology Embedded piezoelectric structure and control
US4878188A (en) * 1988-08-30 1989-10-31 Noise Cancellation Tech Selective active cancellation system for repetitive phenomena
US5032753A (en) * 1989-02-28 1991-07-16 Brother Kogyo Kabushiki Kaisha Piezoelectric transducer and an ultrasonic motor using the piezoelectric transducer
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DE3908577A1 (de) * 1989-03-16 1990-09-20 Laukien Guenther Verfahren und vorrichtung zur verminderung der schallemission getauchter unterseeboote
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US5091953A (en) * 1990-02-13 1992-02-25 University Of Maryland At College Park Repetitive phenomena cancellation arrangement with multiple sensors and actuators

Also Published As

Publication number Publication date
DE69422916T2 (de) 2000-10-05
US5473214A (en) 1995-12-05
CA2161412A1 (en) 1994-11-24
EP0698298B1 (de) 2000-02-02
WO1994027331A1 (en) 1994-11-24
EP0698298A4 (de) 1997-08-13
CA2161412C (en) 2000-04-04
EP0698298A1 (de) 1996-02-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: NEW TRANSDUCERS LTD., LONDON, GB

8339 Ceased/non-payment of the annual fee