JPS4868217A - - Google Patents

Info

Publication number
JPS4868217A
JPS4868217A JP46102517A JP10251771A JPS4868217A JP S4868217 A JPS4868217 A JP S4868217A JP 46102517 A JP46102517 A JP 46102517A JP 10251771 A JP10251771 A JP 10251771A JP S4868217 A JPS4868217 A JP S4868217A
Authority
JP
Japan
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.)
Pending
Application number
JP46102517A
Other languages
Japanese (ja)
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 filed Critical
Priority to JP46102517A priority Critical patent/JPS4868217A/ja
Priority to DE2261500A priority patent/DE2261500B2/de
Priority to US315962A priority patent/US3922501A/en
Publication of JPS4868217A publication Critical patent/JPS4868217A/ja
Pending 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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/021—Reduction of eddy currents in the magnetic circuit of electrodynamic loudspeaker transducer
JP46102517A 1971-12-17 1971-12-17 Pending JPS4868217A (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP46102517A JPS4868217A (zh) 1971-12-17 1971-12-17
DE2261500A DE2261500B2 (de) 1971-12-17 1972-12-15 Elektroakustischer Umformer
US315962A US3922501A (en) 1971-12-17 1972-12-18 Moving voice coil electro-acoustic converter with laminated magnetically anisotropic poles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46102517A JPS4868217A (zh) 1971-12-17 1971-12-17

Publications (1)

Publication Number Publication Date
JPS4868217A true JPS4868217A (zh) 1973-09-18

Family

ID=14329535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP46102517A Pending JPS4868217A (zh) 1971-12-17 1971-12-17

Country Status (3)

Country Link
US (1) US3922501A (zh)
JP (1) JPS4868217A (zh)
DE (1) DE2261500B2 (zh)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4289937A (en) * 1978-05-30 1981-09-15 Mitsubishi Denki Kabushiki Kaisha Speaker with fine grain ferromagnetic material on center pole or ring
US4827162A (en) * 1987-03-02 1989-05-02 Unisys Corp. Controlled drag for magnet actuator
US5357587A (en) * 1992-12-23 1994-10-18 Grodinsky Robert M Distortion reduction in loudspeakers
US5381483A (en) * 1993-04-05 1995-01-10 Commonwealth Of Puerto Rico Minimal inductance electrodynamic transducer
US6289106B1 (en) 1997-08-08 2001-09-11 Hong Long Industrial Co., Ltd. Cap and center pole apparatus and method of coupling
US6768806B1 (en) * 1998-03-19 2004-07-27 Harman International Industries, Incorporated Shorting rings in dual-coil dual-gap loudspeaker drivers
EP1020096B1 (en) * 1998-07-21 2009-10-21 Harman International Industries Incorporated Miniature full range loudspeaker
US6653753B1 (en) * 1999-04-13 2003-11-25 Matsushita Electric Industrial Co., Ltd. Linear motor
GB9916926D0 (en) * 1999-07-20 1999-09-22 New Transducers Ltd Magnet assembly
JP2002064968A (ja) * 2000-08-21 2002-02-28 Nippon Thompson Co Ltd 可動コイル型リニアモータを内蔵したスライド装置
FR2836000B1 (fr) * 2002-02-13 2004-05-28 Harman Internat Moteur electrodynamique a bobine mobile notamment pour haut-parleur, haut-parleur et piece polaire adaptee
US7457429B2 (en) * 2003-04-25 2008-11-25 Step Technologies Inc. Laminated motor structure for electromagnetic transducer
JP2006041601A (ja) * 2004-07-22 2006-02-09 Pioneer Electronic Corp スピーカ用磁気回路及びその製造方法、スピーカ装置
GB2527533B (en) * 2014-06-24 2016-07-13 Amina Tech Ltd Moving coil drive unit and audio drivers incorporating the same
CN107948802B (zh) * 2017-12-25 2024-04-23 厦门东声电子有限公司 一种受话器
CN108460225B (zh) * 2018-03-21 2021-08-31 华北电力大学（保定） 一种各向异性金属薄板感应式磁声图像的仿真方法及系统
CN113557752B (zh) * 2019-02-28 2023-06-23 普立菲有限公司 具有改善线性度的扬声器电机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3632904A (en) * 1970-03-24 1972-01-04 Paul Mauz Moving coil loudspeaker with eddy current suppression
US3665352A (en) * 1970-05-12 1972-05-23 Deutsche Edelstahlwerke Ag Permanent magnet system for a loudspeaker
US3783311A (en) * 1970-12-19 1974-01-01 Coral Audio Corp Magnetic device for use in acoustic apparatus
JPS5235294B2 (zh) * 1971-12-17 1977-09-08

Also Published As

Publication number Publication date
DE2261500A1 (de) 1973-06-28
US3922501A (en) 1975-11-25
DE2261500B2 (de) 1975-07-03

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