HK1050607A1 - Speaker and magnetic circuit used for the speaker. - Google Patents

Speaker and magnetic circuit used for the speaker.

Info

Publication number
HK1050607A1
HK1050607A1 HK03102767A HK03102767A HK1050607A1 HK 1050607 A1 HK1050607 A1 HK 1050607A1 HK 03102767 A HK03102767 A HK 03102767A HK 03102767 A HK03102767 A HK 03102767A HK 1050607 A1 HK1050607 A1 HK 1050607A1
Authority
HK
Hong Kong
Prior art keywords
speaker
magnetic circuit
circuit used
magnetic
circuit
Prior art date
Application number
HK03102767A
Other languages
English (en)
Inventor
Takashi Suzuki
Satoshi Koura
Original Assignee
Matsushita Electric Ind 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 JP2000253730A external-priority patent/JP4269498B2/ja
Priority claimed from JP2000268254A external-priority patent/JP2002078083A/ja
Application filed by Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of HK1050607A1 publication Critical patent/HK1050607A1/xx

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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
HK03102767A 2000-08-24 2003-04-16 Speaker and magnetic circuit used for the speaker. HK1050607A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000253730A JP4269498B2 (ja) 2000-08-24 2000-08-24 スピーカ
JP2000268254A JP2002078083A (ja) 2000-09-05 2000-09-05 スピーカ用磁気回路
PCT/JP2001/007268 WO2002017676A1 (fr) 2000-08-24 2001-08-24 Haut-parleur et circuit magnetique correspondant utilise

Publications (1)

Publication Number Publication Date
HK1050607A1 true HK1050607A1 (en) 2003-06-27

Family

ID=26598371

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03102767A HK1050607A1 (en) 2000-08-24 2003-04-16 Speaker and magnetic circuit used for the speaker.

Country Status (6)

Country Link
US (1) US6671385B2 (xx)
EP (1) EP1227701B1 (xx)
CN (2) CN1163104C (xx)
DE (1) DE60136262D1 (xx)
HK (1) HK1050607A1 (xx)
WO (1) WO2002017676A1 (xx)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3992275B2 (ja) * 2002-05-16 2007-10-17 オンキヨー株式会社 小型スピーカー
JP4073717B2 (ja) * 2002-06-19 2008-04-09 パイオニア株式会社 内磁型磁気回路及びスピーカ装置
DE10232643A1 (de) * 2002-07-18 2004-02-12 Harman/Becker Automotive Systems Gmbh (Straubing Division) Antriebsanordnung für einen Lautsprecher
US6996247B2 (en) * 2002-11-05 2006-02-07 Step Technologies, Inc. Push-push multiple magnetic air gap transducer
US6940992B2 (en) * 2002-11-05 2005-09-06 Step Technologies Inc. Push-push multiple magnetic air gap transducer
US20040131223A1 (en) * 2003-01-06 2004-07-08 Stiles Enrique M. Electromagnetic transducer having a hybrid internal/external magnet motor geometry
US7006654B2 (en) * 2003-02-07 2006-02-28 Step Technologies, Inc. Push-pull electromagnetic transducer with increased Xmax
US7227970B2 (en) * 2004-02-26 2007-06-05 Step Technologies Inc. Shorting ring fixture for electromagnetic transducer
JP4463048B2 (ja) * 2004-08-27 2010-05-12 アルパイン株式会社 スピーカー
JP4385981B2 (ja) * 2005-03-30 2009-12-16 オンキヨー株式会社 動電型スピーカー
JP2007005993A (ja) * 2005-06-22 2007-01-11 Matsushita Electric Ind Co Ltd スピーカ用磁気回路の生産設備
JP4913748B2 (ja) * 2005-11-15 2012-04-11 パイオニア株式会社 スピーカ、および磁気回路
JP2007174604A (ja) * 2005-12-26 2007-07-05 Pioneer Electronic Corp スピーカ装置
US7894623B2 (en) * 2006-03-22 2011-02-22 Harman International Industries, Incorporated Loudspeaker having an interlocking magnet structure
US8249291B2 (en) * 2006-03-28 2012-08-21 Harman International Industries, Incorporated Extended multiple gap motors for electromagnetic transducers
WO2007135745A1 (ja) * 2006-05-24 2007-11-29 Pioneer Corporation スピーカ装置
US20070297639A1 (en) * 2006-06-21 2007-12-27 Noll Michael A Multiple magnet loudspeaker
WO2008103723A1 (en) * 2007-02-22 2008-08-28 Harman International Industries, Incorporated Loudspeaker magnetic flux collection system
US8249292B1 (en) * 2010-01-13 2012-08-21 Eminence Speaker, LLC Mechanically adjustable variable flux speaker
JP2012080480A (ja) * 2010-10-06 2012-04-19 Sony Corp スピーカーユニット及びアクティブスピーカー装置
JP5919473B2 (ja) 2012-01-11 2016-05-18 パナソニックＩｐマネジメント株式会社 スピーカ用磁気回路およびこれを用いたスピーカ
US9445201B2 (en) * 2013-11-21 2016-09-13 Harman International Industries, Inc. Inverted dual coil transducer
US9854365B2 (en) * 2016-04-15 2017-12-26 Harman International Industries, Inc. Loudspeaker motor and suspension system
US10555085B2 (en) * 2017-06-16 2020-02-04 Apple Inc. High aspect ratio moving coil transducer
WO2019134162A1 (zh) 2018-01-08 2019-07-11 深圳市韶音科技有限公司 一种骨传导扬声器
EP3932090A1 (en) * 2019-02-28 2022-01-05 Purifi ApS Loudspeaker motor with improved linearity
CN209330397U (zh) * 2019-04-02 2019-08-30 苏州上声电子股份有限公司 一种中音扬声器
US11785392B2 (en) * 2019-09-27 2023-10-10 Apple Inc. Dual function transducer
US11245986B2 (en) * 2019-10-24 2022-02-08 Bose Corporation Electro-magnetic motor geometry with radial ring and axial pole magnet
US20230362547A1 (en) * 2020-09-03 2023-11-09 Purifi Aps Loudspeaker motor with inner permanent magnet

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58235B2 (ja) * 1978-11-25 1983-01-05 松下電器産業株式会社 電気音響変換器用磁気回路
JPS59139794A (ja) * 1983-01-31 1984-08-10 Ibuki Kogyo Kk 漏洩磁場を打消したホ−ンスピ−カ−
JP3011829B2 (ja) * 1993-06-30 2000-02-21 株式会社ケンウッド スピーカの製造方法及び製造装置
US5461677A (en) * 1993-09-16 1995-10-24 Ferrofluidics Corporation Loudspeaker
JP3296697B2 (ja) 1995-08-10 2002-07-02 株式会社ケンウッド 反発磁気回路型スピーカ
US5687248A (en) * 1996-05-02 1997-11-11 Industrial Technology Research Institute Light weight and low magnetic leakage loudspeaker
CN1219834A (zh) * 1997-12-12 1999-06-16 张凡 扬声器
JP3365958B2 (ja) 1998-05-18 2003-01-14 株式会社ケンウッド スピーカ
CN2373961Y (zh) * 1998-12-29 2000-04-12 张凡 扬声器
WO2000067523A2 (en) * 1999-04-29 2000-11-09 New Transducers Limited Moving coil driver

Also Published As

Publication number Publication date
EP1227701B1 (en) 2008-10-22
US20030031338A1 (en) 2003-02-13
US6671385B2 (en) 2003-12-30
CN100429959C (zh) 2008-10-29
CN1547419A (zh) 2004-11-17
WO2002017676A1 (fr) 2002-02-28
EP1227701A1 (en) 2002-07-31
CN1389082A (zh) 2003-01-01
EP1227701A4 (en) 2005-12-07
CN1163104C (zh) 2004-08-18
DE60136262D1 (de) 2008-12-04

Similar Documents

Publication Publication Date Title
HK1050607A1 (en) Speaker and magnetic circuit used for the speaker.
HK1051111A1 (en) Speaker.
AU2001296724A1 (en) Microelectronic magnetic structure, device including the structure, and methods of forming the structure and device
EP1292020A4 (en) AMPLIFIER CIRCUIT
GB0111990D0 (en) Planar coil circuit
GB0014634D0 (en) Loudspeaker
GB0028689D0 (en) Amplifier circuit
GB2359679B (en) Amplifier
HK1054483A1 (zh) 揚聲器
GB0006485D0 (en) An amplifier
MXPA03009590A (es) DISPOSITIVO DE SUJECIoN MAGNETICO.
MXPA03001951A (es) Pirroliminas y pirazoliminas fusionadas substituidas.
SG106632A1 (en) Magnetic core having an effective magnetic bias and magnetic device using the magnetic core
EP1233646A4 (en) SPEAKER
GB0018831D0 (en) Loudspeaker
AU7079601A (en) Magnetic bearings
HK1049940A1 (en) Loudspeaker device.
GB9906973D0 (en) Sense amplifier circuit
AU2001293749A1 (en) Magnetic component
AU2002348869A8 (en) Integrated circuit with an amplifier
GB0011696D0 (en) Circuit
GB0130326D0 (en) Loudspeakers
HK1062085A1 (en) Amplifier circuit
GB0113481D0 (en) Loudspeakers
GB0027073D0 (en) Magnetic circuit

Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20080824