WO2003010998A1 - Magnetic shielding of loud speaker sensing coil - Google Patents

Magnetic shielding of loud speaker sensing coil Download PDF

Info

Publication number
WO2003010998A1
WO2003010998A1 PCT/JP2002/006920 JP0206920W WO03010998A1 WO 2003010998 A1 WO2003010998 A1 WO 2003010998A1 JP 0206920 W JP0206920 W JP 0206920W WO 03010998 A1 WO03010998 A1 WO 03010998A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensing coil
loud speaker
magnetic shielding
magnetic
coil
Prior art date
Application number
PCT/JP2002/006920
Other languages
English (en)
French (fr)
Inventor
Toshio Chikama
Original Assignee
Toshio Chikama
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 Toshio Chikama filed Critical Toshio Chikama
Priority to JP2003516246A priority Critical patent/JPWO2003010998A1/ja
Priority to EP02743858A priority patent/EP1420610A4/en
Priority to US10/484,559 priority patent/US20040190747A1/en
Publication of WO2003010998A1 publication Critical patent/WO2003010998A1/ja

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • 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
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
PCT/JP2002/006920 2001-07-23 2002-07-08 Magnetic shielding of loud speaker sensing coil WO2003010998A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2003516246A JPWO2003010998A1 (ja) 2001-07-23 2002-07-08 スピーカー検出コイルの磁気遮断
EP02743858A EP1420610A4 (en) 2001-07-23 2002-07-08 MAGNETIC SHIELDING OF SPEAKER MEASURING VALVE
US10/484,559 US20040190747A1 (en) 2001-07-23 2002-07-08 Magnetic shielding of loud speaker sensing coil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001221189 2001-07-23
JP2001-221189 2001-07-23

Publications (1)

Publication Number Publication Date
WO2003010998A1 true WO2003010998A1 (en) 2003-02-06

Family

ID=19054891

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/006920 WO2003010998A1 (en) 2001-07-23 2002-07-08 Magnetic shielding of loud speaker sensing coil

Country Status (4)

Country Link
US (1) US20040190747A1 (ja)
EP (1) EP1420610A4 (ja)
JP (1) JPWO2003010998A1 (ja)
WO (1) WO2003010998A1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101855915A (zh) * 2007-09-14 2010-10-06 Hpv技术公司 全范围平面磁性传声器及其阵列
JP2011526452A (ja) * 2008-07-02 2011-10-06 ルノー・エス・アー・エス コイル型変換器モーター構造のボイスコイル支持装置
WO2015115191A1 (ja) * 2014-01-28 2015-08-06 ソニー株式会社 スピーカ装置
JP2018521846A (ja) * 2015-07-16 2018-08-09 ロフェルト・ゲーエムベーハー 振動アクチュエータ
WO2024195543A1 (ja) * 2023-03-23 2024-09-26 ソニーグループ株式会社 音響装置、信号処理方法、表示方法

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2892886B1 (fr) 2005-11-03 2008-01-25 Bernard Richoux Transducteur electrodynamique, applications aux haut-parleurs et geophones
US8742632B1 (en) * 2010-06-29 2014-06-03 Moticont Linear motor with two magnets and a coil carrier having multiple winding areas with each area having a section of a coil wound with one continuous wire, or separate coils respectively wound around each area with all coils wound in the same direction
US9185491B2 (en) * 2011-04-12 2015-11-10 Harman International Industries, Incorporated Reinforced diaphragm for a low profile loudspeaker transducer with two sets of inner and outer magnets
US9100740B2 (en) * 2013-05-31 2015-08-04 Lai-Shi Huang Innovative magnetic design for speakers
US9008348B1 (en) 2014-01-03 2015-04-14 Rockford Corporation Low profile loudspeaker
US9025809B1 (en) 2014-01-03 2015-05-05 Rockford Corporation Voicecoil affixation
RU2718683C2 (ru) * 2018-02-21 2020-04-13 Общество с ограниченной ответственностью "ЛАБОРАТОРИЯ ЗВУКА" Модульная подвижная система электродинамического громкоговорителя (варианты)
CN108566606B (zh) 2018-06-25 2020-03-17 歌尔股份有限公司 发声器件和便携终端
CN108632729B (zh) * 2018-06-25 2020-08-21 歌尔股份有限公司 发声器件及便携终端
CN108696806B (zh) * 2018-06-25 2023-11-21 歌尔股份有限公司 扬声器及便携终端
CN110446145A (zh) * 2019-06-26 2019-11-12 瑞声科技(新加坡)有限公司 发声器件
CN113747325B (zh) * 2021-09-24 2023-05-30 安徽井利电子有限公司 一种用于降低磁串扰的扬声器及其组装方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972894A (ja) * 1982-10-20 1984-04-24 Matsushita Electric Ind Co Ltd スピ−カ
US5081684A (en) * 1988-11-07 1992-01-14 Harman International Industries, Incorporated Shallow loudspeaker with slotted magnet structure
JPH0879886A (ja) * 1994-09-07 1996-03-22 Onkyo Corp ダンパレススピーカ
JPH09327089A (ja) * 1996-06-05 1997-12-16 Sony Corp トリプルコイルスピーカ
JP2001078294A (ja) * 1999-09-03 2001-03-23 Foster Electric Co Ltd モーショナルフィードバックスピーカ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8321810D0 (en) * 1983-08-12 1983-09-14 Linn Prod Ltd Loudspeaker with notional feedback
US5493620A (en) * 1993-12-20 1996-02-20 Pulfrey; Robert E. High fidelity sound reproducing system
JP2000341789A (ja) * 1999-05-26 2000-12-08 Sony Corp スピーカ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972894A (ja) * 1982-10-20 1984-04-24 Matsushita Electric Ind Co Ltd スピ−カ
US5081684A (en) * 1988-11-07 1992-01-14 Harman International Industries, Incorporated Shallow loudspeaker with slotted magnet structure
JPH0879886A (ja) * 1994-09-07 1996-03-22 Onkyo Corp ダンパレススピーカ
JPH09327089A (ja) * 1996-06-05 1997-12-16 Sony Corp トリプルコイルスピーカ
JP2001078294A (ja) * 1999-09-03 2001-03-23 Foster Electric Co Ltd モーショナルフィードバックスピーカ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1420610A4 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101855915A (zh) * 2007-09-14 2010-10-06 Hpv技术公司 全范围平面磁性传声器及其阵列
JP2011526452A (ja) * 2008-07-02 2011-10-06 ルノー・エス・アー・エス コイル型変換器モーター構造のボイスコイル支持装置
KR101535698B1 (ko) * 2008-07-02 2015-07-09 르노 에스.아.에스. 코일 변환기 모터 구조체용 보이스 코일 지지체
WO2015115191A1 (ja) * 2014-01-28 2015-08-06 ソニー株式会社 スピーカ装置
JPWO2015115191A1 (ja) * 2014-01-28 2017-03-23 ソニー株式会社 スピーカ装置
US10111007B2 (en) 2014-01-28 2018-10-23 Sony Corporation Speaker device
JP2018521846A (ja) * 2015-07-16 2018-08-09 ロフェルト・ゲーエムベーハー 振動アクチュエータ
WO2024195543A1 (ja) * 2023-03-23 2024-09-26 ソニーグループ株式会社 音響装置、信号処理方法、表示方法

Also Published As

Publication number Publication date
EP1420610A1 (en) 2004-05-19
US20040190747A1 (en) 2004-09-30
EP1420610A4 (en) 2006-06-28
JPWO2003010998A1 (ja) 2004-11-18

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