JP4102904B2 - 音響トランスデューサ - Google Patents

音響トランスデューサ Download PDF

Info

Publication number
JP4102904B2
JP4102904B2 JP2004561675A JP2004561675A JP4102904B2 JP 4102904 B2 JP4102904 B2 JP 4102904B2 JP 2004561675 A JP2004561675 A JP 2004561675A JP 2004561675 A JP2004561675 A JP 2004561675A JP 4102904 B2 JP4102904 B2 JP 4102904B2
Authority
JP
Japan
Prior art keywords
acoustic transducer
actuator
active element
magnetostrictive
transducer 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 - Lifetime
Application number
JP2004561675A
Other languages
English (en)
Japanese (ja)
Other versions
JP2006511135A5 (enExample
JP2006511135A (ja
Inventor
メザーリングハム，ウィリアム，ジョン
ジョンソン，デーヴィッド，アンソニー
スミス，ブライアン，ダグラス
ムンス，ネイル
アストン，マーチン，ジョフェリー
Original Assignee
フェオニック ピーエルシー
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 フェオニック ピーエルシー filed Critical フェオニック ピーエルシー
Publication of JP2006511135A publication Critical patent/JP2006511135A/ja
Publication of JP2006511135A5 publication Critical patent/JP2006511135A5/ja
Application granted granted Critical
Publication of JP4102904B2 publication Critical patent/JP4102904B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Fuel-Injection Apparatus (AREA)
JP2004561675A 2002-12-20 2003-12-22 音響トランスデューサ Expired - Lifetime JP4102904B2 (ja)

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 (3)

Publication Number Publication Date
JP2006511135A JP2006511135A (ja) 2006-03-30
JP2006511135A5 JP2006511135A5 (enExample) 2006-05-18
JP4102904B2 true JP4102904B2 (ja) 2008-06-18

Family

ID=32683985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004561675A Expired - Lifetime JP4102904B2 (ja) 2002-12-20 2003-12-22 音響トランスデューサ

Country Status (6)

Country Link
US (1) US7620193B2 (enExample)
EP (2) EP1773097B1 (enExample)
JP (1) JP4102904B2 (enExample)
AU (1) AU2003294140A1 (enExample)
DE (2) DE60310765D1 (enExample)
WO (1) WO2004057912A2 (enExample)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004057912A2 (en) 2002-12-20 2004-07-08 Newlands Technology Limited Acoustic actuators
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
WO2013131175A1 (en) * 2012-03-08 2013-09-12 Robert Katz Audio headboard
WO2014144112A2 (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
AU2014375214B2 (en) * 2013-12-30 2020-01-30 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
WO2002076141A2 (en) 2001-03-19 2002-09-26 Newlands Technology Limited Magnetostrictive actuator
WO2004057912A2 (en) 2002-12-20 2004-07-08 Newlands Technology Limited Acoustic actuators

Also Published As

Publication number Publication date
US20060050904A1 (en) 2006-03-09
WO2004057912A2 (en) 2004-07-08
EP1576851A2 (en) 2005-09-21
EP1773097A2 (en) 2007-04-11
EP1576851B1 (en) 2006-12-27
JP2006511135A (ja) 2006-03-30
DE60310765D1 (de) 2007-02-08
DE60328236D1 (de) 2009-08-13
EP1773097A3 (en) 2008-01-02
EP1773097B1 (en) 2009-07-01
WO2004057912A3 (en) 2004-10-28
AU2003294140A1 (en) 2004-07-14
AU2003294140A8 (en) 2004-07-14
US7620193B2 (en) 2009-11-17

Similar Documents

Publication Publication Date Title
JP4102904B2 (ja) 音響トランスデューサ
JP5428861B2 (ja) 圧電音響素子及び電子機器
CN101336562B (zh) 压电致动器及电子装置
US8471432B2 (en) Magnetostrictive actuator
US11070119B2 (en) Manufacturing method of vibrating actuator
US20090096326A1 (en) Piezoelectric actuator, acoustic component, and electronic device
CN101611538A (zh) 压电致动器和电子装置
JPWO2005094121A1 (ja) 圧電音響素子、音響装置及び携帯端末装置
CN102687532B (zh) 电声换能器、电子装置、电声变换方法及声波输出方法
JP2023520097A (ja) 振動アクチュエータ
JP4558526B2 (ja) 骨伝導スピーカ
JP2002135893A (ja) 圧電スピーカ及びその駆動回路
TW515220B (en) Loudspeakers
JP7103765B2 (ja) 電気音響変換装置及び電気音響変換装置の製造方法
JP2019518592A (ja) 振動アクチュエータ
JP2006229647A (ja) 骨伝導用音響用振動子
EP2123111B1 (en) Loudspeaker actuator
CN117221796A (zh) 扬声器和相关的电子声音信号电路、声音系统和制造方法
CN1729715B (zh) 声致动器
CN115955636A (zh) 一种平面扬声器及耳机
WO2020192529A1 (zh) 一种显示设备
US20240205593A1 (en) Actuator with distributed resonances
CN114553050B (zh) 一种压电马达及电子设备
KR101569851B1 (ko) 비탄성률 증대를 위한 다층 구조의 진동판을 갖는 스피커
JP2017070042A (ja) 振動構造体および音響構造体

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050628

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20051220

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051220

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20051228

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20051228

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070501

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20070801

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20070808

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070830

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080107

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20080107

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20080111

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20080226

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080306

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20080226

R150 Certificate of patent or registration of utility model

Ref document number: 4102904

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110404

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120404

Year of fee payment: 4

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120404

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130404

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140404

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250