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DE60310765D1 - Akustischer aktuator - Google Patents

Akustischer aktuator

Info

Publication number
DE60310765D1
DE60310765D1 DE60310765T DE60310765T DE60310765D1 DE 60310765 D1 DE60310765 D1 DE 60310765D1 DE 60310765 T DE60310765 T DE 60310765T DE 60310765 T DE60310765 T DE 60310765T DE 60310765 D1 DE60310765 D1 DE 60310765D1
Authority
DE
Germany
Prior art keywords
acoustic actuator
acoustic
actuator
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 - Lifetime
Application number
DE60310765T
Other languages
English (en)
Inventor
William John Metheringham
David Anthony Johnson
Brian Douglas Smith
Neil Munns
Martin Geoffrey Aston
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.)
Feonic PLC
Original Assignee
Feonic PLC
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 GB0229952A external-priority patent/GB0229952D0/en
Priority claimed from GB0229954A external-priority patent/GB0229954D0/en
Application filed by Feonic PLC filed Critical Feonic PLC
Application granted granted Critical
Publication of DE60310765D1 publication Critical patent/DE60310765D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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; DEAF-AID SETS; 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; DEAF-AID SETS; 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 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R15/00—Magnetostrictive transducers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/05—Aspects relating to the positioning and way or means of mounting of exciters to resonant bending wave panels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Fuel-Injection Apparatus (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
DE60310765T 2002-12-20 2003-12-22 Akustischer aktuator Expired - Lifetime DE60310765D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0229952A GB0229952D0 (en) 2002-12-20 2002-12-20 Magnetostrictive actuator
GB0229954A GB0229954D0 (en) 2002-12-20 2002-12-20 Actuator
PCT/GB2003/005616 WO2004057912A2 (en) 2002-12-20 2003-12-22 Acoustic actuators

Publications (1)

Publication Number Publication Date
DE60310765D1 true DE60310765D1 (de) 2007-02-08

Family

ID=32683985

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60328236T Expired - Fee Related DE60328236D1 (de) 2002-12-20 2003-12-22 Akustische Aktuatoren
DE60310765T Expired - Lifetime DE60310765D1 (de) 2002-12-20 2003-12-22 Akustischer aktuator

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE60328236T Expired - Fee Related DE60328236D1 (de) 2002-12-20 2003-12-22 Akustische Aktuatoren

Country Status (6)

Country Link
US (1) US7620193B2 (de)
EP (2) EP1576851B1 (de)
JP (1) JP4102904B2 (de)
AU (1) AU2003294140A1 (de)
DE (2) DE60328236D1 (de)
WO (1) WO2004057912A2 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1576851B1 (de) 2002-12-20 2006-12-27 FeONIC plc Akustischer aktuator
US7327637B2 (en) 2005-02-23 2008-02-05 Massachusetts Institute Of Technology Acoustic pulse actuator
JP4758133B2 (ja) * 2005-04-28 2011-08-24 フォスター電機株式会社 超磁歪スピーカ
GB0719246D0 (en) 2007-10-03 2007-11-14 Feonic Plc Transducer for vibration absorbing, sensing and transmitting
JP4524700B2 (ja) * 2007-11-26 2010-08-18 ソニー株式会社 スピーカ装置およびスピーカ駆動方法
US8094514B2 (en) * 2008-11-07 2012-01-10 Pgs Geophysical As Seismic vibrator array and method for using
US8189851B2 (en) 2009-03-06 2012-05-29 Emo Labs, Inc. Optically clear diaphragm for an acoustic transducer and method for making same
ITTO20090368A1 (it) * 2009-05-08 2010-11-09 Esarc Hi Tech S R L Dispositivo per la riproduzione del suono
ITTO20090369A1 (it) * 2009-05-08 2010-11-09 Esarc Hi Tech S R L Dispositivo per la riproduzione del suono con supporto modellabile
ITTO20090470A1 (it) * 2009-06-19 2010-12-20 Esarc Hi Tech S R L Dispositivo per la riproduzione del suono con attuatori acustici sovrapposti
US7974152B2 (en) * 2009-06-23 2011-07-05 Pgs Geophysical As Control system for marine vibrators and seismic acquisition system using such control system
US8335127B2 (en) * 2009-08-12 2012-12-18 Pgs Geophysical As Method for generating spread spectrum driver signals for a seismic vibrator array using multiple biphase modulation operations in each driver signal chip
GB0921195D0 (en) * 2009-12-03 2010-01-20 Feonic Plc Audio device
IT1398882B1 (it) * 2010-02-18 2013-03-21 Esarc Hi Tech S R L Dispositivo per la riproduzione del suono
US8446798B2 (en) 2010-06-29 2013-05-21 Pgs Geophysical As Marine acoustic vibrator having enhanced low-frequency amplitude
GB201011183D0 (en) 2010-07-02 2010-08-18 Feonic Plc Apparatus for radioating an audio signal
JP5680487B2 (ja) * 2011-06-08 2015-03-04 ビフレステック株式会社 音響装置およびその振動伝達方法
US8670292B2 (en) 2011-08-12 2014-03-11 Pgs Geophysical As Electromagnetic linear actuators for marine acoustic vibratory sources
US10226133B2 (en) * 2012-03-08 2019-03-12 Robert Katz Audio headboard
US20140270192A1 (en) 2013-03-15 2014-09-18 Emo Labs, Inc. Acoustic transducers
US20150010173A1 (en) * 2013-07-05 2015-01-08 Qualcomm Incorporated Apparatus and method for providing a frequency response for audio signals
WO2015101643A1 (en) * 2013-12-30 2015-07-09 Pgs Geophysical As Control system for marine vibrators
US10476461B2 (en) * 2017-12-20 2019-11-12 Nvf Tech Ltd Active distributed mode actuator
JP6522819B2 (ja) * 2018-02-05 2019-05-29 京セラ株式会社 音発生器、音発生器用圧電振動部及び音発生システム

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2031789A (en) * 1932-08-09 1936-02-25 Pierce George Washington Acoustic electric energy converter
US2249835A (en) * 1937-11-11 1941-07-22 Bell Telephone Labor Inc Magnetostrictive vibrator
US2621260A (en) * 1947-01-24 1952-12-09 Sykes Adrian Francis Electrical sound recording, reproducing, and like apparatus
US3366748A (en) * 1964-09-22 1968-01-30 Artnell Company Loudspeaker diaphragm and driver
US3470402A (en) * 1967-08-25 1969-09-30 Us Navy Magnetostrictive vibration motor
US3697790A (en) * 1970-12-02 1972-10-10 William T Flint Transducers having piezoelectric struts
US4845688A (en) 1988-03-21 1989-07-04 Image Acoustics, Inc. Electro-mechanical transduction apparatus
US20010005417A1 (en) * 1999-12-16 2001-06-28 Bijan Djahansouzi Acoustic devices
AU2002242819A1 (en) 2001-03-19 2002-10-03 Newlands Technology Limited Magnetostrictive actuator
EP1576851B1 (de) 2002-12-20 2006-12-27 FeONIC plc Akustischer aktuator

Also Published As

Publication number Publication date
EP1773097B1 (de) 2009-07-01
EP1576851B1 (de) 2006-12-27
WO2004057912A3 (en) 2004-10-28
JP4102904B2 (ja) 2008-06-18
AU2003294140A1 (en) 2004-07-14
US7620193B2 (en) 2009-11-17
WO2004057912A2 (en) 2004-07-08
DE60328236D1 (de) 2009-08-13
JP2006511135A (ja) 2006-03-30
AU2003294140A8 (en) 2004-07-14
US20060050904A1 (en) 2006-03-09
EP1576851A2 (de) 2005-09-21
EP1773097A3 (de) 2008-01-02
EP1773097A2 (de) 2007-04-11

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Legal Events

Date Code Title Description
8332 No legal effect for de