GB1380928A - Electromagnetic transducer - Google Patents

Electromagnetic transducer

Info

Publication number
GB1380928A
GB1380928A GB5972471A GB5972471A GB1380928A GB 1380928 A GB1380928 A GB 1380928A GB 5972471 A GB5972471 A GB 5972471A GB 5972471 A GB5972471 A GB 5972471A GB 1380928 A GB1380928 A GB 1380928A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
dec
permanent magnet
conductor pattern
magnet arrangement
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
Application number
GB5972471A
Other languages
English (en)
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.)
Magnepan Inc
Original Assignee
Magnepan Inc
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 Magnepan Inc filed Critical Magnepan Inc
Publication of GB1380928A publication Critical patent/GB1380928A/en
Expired 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
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H04R9/047—Construction in which the windings of the moving coil lay in the same plane

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB5972471A 1970-12-23 1971-12-22 Electromagnetic transducer Expired GB1380928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10085670A 1970-12-23 1970-12-23

Publications (1)

Publication Number Publication Date
GB1380928A true GB1380928A (en) 1975-01-15

Family

ID=22281892

Family Applications (3)

Application Number Title Priority Date Filing Date
GB5972471A Expired GB1380928A (en) 1970-12-23 1971-12-22 Electromagnetic transducer
GB3758974A Expired GB1380930A (en) 1970-12-23 1971-12-22 Electromagnetic transducer
GB3695474A Expired GB1380929A (en) 1970-12-23 1971-12-22 Electromagnetic transducer

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB3758974A Expired GB1380930A (en) 1970-12-23 1971-12-22 Electromagnetic transducer
GB3695474A Expired GB1380929A (en) 1970-12-23 1971-12-22 Electromagnetic transducer

Country Status (6)

Country Link
US (1) US3674946A (OSRAM)
CA (1) CA962760A (OSRAM)
DE (2) DE2166998C3 (OSRAM)
FR (1) FR2119026B1 (OSRAM)
GB (3) GB1380928A (OSRAM)
IT (1) IT944329B (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2347818A (en) * 1999-03-10 2000-09-13 Steff Lin Flat type loud speaker

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US3919499A (en) * 1974-01-11 1975-11-11 Magnepan Inc Planar speaker
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FR2422309A1 (fr) * 1978-04-04 1979-11-02 Daniere Joannes Systeme pour la reproduction de signaux acoustiques de frequences tres basses jusqu'aux plus elevees
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EP0262406A3 (en) * 1982-06-17 1988-08-31 LARSON, David A. Electro-acoustic transducer with diaphragm and blank therefor
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US4803733A (en) * 1986-12-16 1989-02-07 Carver R W Loudspeaker diaphragm mounting system and method
US4837838A (en) * 1987-03-30 1989-06-06 Eminent Technology, Inc. Electromagnetic transducer of improved efficiency
JPH01295598A (ja) * 1988-02-26 1989-11-29 Yasuhiro Shinjiyou スピーカー
US4849646A (en) * 1988-03-28 1989-07-18 Motorola, Inc. Air driven whistle generator
US4939784A (en) * 1988-09-19 1990-07-03 Bruney Paul F Loudspeaker structure
US5430805A (en) * 1990-12-27 1995-07-04 Chain Reactions, Inc. Planar electromagnetic transducer
FR2687035A1 (fr) * 1992-02-05 1993-08-06 Navarron Jean Pierre Dispositif de reproduction du son par deplacement d'une lame d'air.
GB2265519A (en) * 1992-03-19 1993-09-29 Jonathan Neil Smith Flat monopole loudspeaker
GB2278515A (en) * 1993-05-26 1994-11-30 Jonathan Neil Smith Curved loudspeaker.
GB9404585D0 (en) * 1994-03-08 1994-04-20 Smith Jonathan N Loudspeaker
GB2301507B (en) * 1994-03-08 1997-11-19 Jonathan Neil Smith Electromagnetic loudspeaker
US20020076069A1 (en) * 1998-01-07 2002-06-20 American Technology Corporation Sonic emitter with foam stator
US6304662B1 (en) 1998-01-07 2001-10-16 American Technology Corporation Sonic emitter with foam stator
US6188772B1 (en) 1998-01-07 2001-02-13 American Technology Corporation Electrostatic speaker with foam stator
US6154557A (en) * 1998-05-21 2000-11-28 Sonigistix Corporation Acoustic transducer with selective driving force distribution
US6175636B1 (en) 1998-06-26 2001-01-16 American Technology Corporation Electrostatic speaker with moveable diaphragm edges
US6850623B1 (en) 1999-10-29 2005-02-01 American Technology Corporation Parametric loudspeaker with improved phase characteristics
US20050100181A1 (en) * 1998-09-24 2005-05-12 Particle Measuring Systems, Inc. Parametric transducer having an emitter film
US20050195985A1 (en) * 1999-10-29 2005-09-08 American Technology Corporation Focused parametric array
CA2401886A1 (en) * 2000-03-03 2001-09-13 American Technology Corporation Single end planar magnetic speaker
US7099488B2 (en) * 2000-05-03 2006-08-29 Wisdom Audio Corp Planar speaker wiring layout
JP2005503685A (ja) * 2001-01-22 2005-02-03 アメリカン・テクノロジー・コーポレーション 改良非平衡平面型磁気スピーカー
US6934402B2 (en) * 2001-01-26 2005-08-23 American Technology Corporation Planar-magnetic speakers with secondary magnetic structure
RU2232487C2 (ru) * 2001-12-17 2004-07-10 Алешин Евгений Сергеевич Электродинамический громкоговоритель
US7035425B2 (en) 2002-05-02 2006-04-25 Harman International Industries, Incorporated Frequency response enhancements for electro-dynamic loudspeakers
US7627134B2 (en) 2002-05-02 2009-12-01 Harman International Industries, Incorporated Magnet retention system in planar loudspeakers
US7203332B2 (en) * 2002-05-02 2007-04-10 Harman International Industries, Incorporated Magnet arrangement for loudspeaker
WO2003094571A2 (en) * 2002-05-02 2003-11-13 Harman International Industries, Incorporated Electro-dynamic planar loudspeakers
US7155026B2 (en) 2002-05-02 2006-12-26 Harman International Industries, Incorporated Mounting bracket system
US7152299B2 (en) * 2002-05-02 2006-12-26 Harman International Industries, Incorporated Method of assembling a loudspeaker
US7146017B2 (en) * 2002-05-02 2006-12-05 Harman International Industries, Incorporated Electrical connectors for electro-dynamic loudspeakers
US7149321B2 (en) 2002-05-02 2006-12-12 Harman International Industries, Incorporated Electro-dynamic loudspeaker mounting system
US20040022409A1 (en) * 2002-05-02 2004-02-05 Hutt Steven W. Film attaching system
US7278200B2 (en) * 2002-05-02 2007-10-09 Harman International Industries, Incorporated Method of tensioning a diaphragm for an electro-dynamic loudspeaker
US20040042632A1 (en) * 2002-05-02 2004-03-04 Hutt Steven W. Directivity control of electro-dynamic loudspeakers
US7236608B2 (en) * 2002-05-02 2007-06-26 Harman International Industries, Incorporated Conductors for electro-dynamic loudspeakers
AU2003258236A1 (en) * 2002-08-14 2004-03-03 Eminent Technology Incorporated Compliant diaphragm for planar magnetic acoustic transducers
US7316290B2 (en) * 2003-01-30 2008-01-08 Harman International Industries, Incorporated Acoustic lens system
US20060280315A1 (en) * 2003-06-09 2006-12-14 American Technology Corporation System and method for delivering audio-visual content along a customer waiting line
WO2005043771A1 (en) * 2003-10-23 2005-05-12 American Technology Corporation Method of adusting linear parameters of a parametric ultrasonic signal to reduce non-linearities in decoupled audio output waves and system including same
RU2369865C2 (ru) * 2004-07-23 2009-10-10 Электрик Пауэ Рисеч Инститьют, Инк. Гибкий электромагнитный акустический преобразователь
EP1686832B1 (en) * 2005-01-26 2008-04-09 Harman Becker Automotive Systems GmbH Electroacoustic transducer
EP1881732A1 (en) * 2006-06-21 2008-01-23 Harman/Becker Automotive Systems GmbH Magnetic membrane suspension
US8275137B1 (en) 2007-03-22 2012-09-25 Parametric Sound Corporation Audio distortion correction for a parametric reproduction system
US8391514B2 (en) 2010-06-14 2013-03-05 Parametric Sound Corporation Parametric transducer systems and related methods
US8942408B1 (en) 2011-07-22 2015-01-27 James Joseph Croft, III Magnetically one-side driven planar transducer with improved electro-magnetic circuit
TWI451769B (zh) * 2011-12-27 2014-09-01 Univ Chung Hua 電聲轉換器及其製造方法
US9036831B2 (en) 2012-01-10 2015-05-19 Turtle Beach Corporation Amplification system, carrier tracking systems and related methods for use in parametric sound systems
WO2013158298A1 (en) 2012-04-18 2013-10-24 Parametric Sound Corporation Parametric transducers related methods
US8934650B1 (en) 2012-07-03 2015-01-13 Turtle Beach Corporation Low profile parametric transducers and related methods
US9197965B2 (en) 2013-03-15 2015-11-24 James J. Croft, III Planar-magnetic transducer with improved electro-magnetic circuit
US8903104B2 (en) 2013-04-16 2014-12-02 Turtle Beach Corporation Video gaming system with ultrasonic speakers
US9332344B2 (en) 2013-06-13 2016-05-03 Turtle Beach Corporation Self-bias emitter circuit
US8988911B2 (en) 2013-06-13 2015-03-24 Turtle Beach Corporation Self-bias emitter circuit
JP6255994B2 (ja) * 2013-06-27 2018-01-10 株式会社リコー エネルギー変換装置
WO2015186109A1 (en) * 2014-06-05 2015-12-10 Fonica International S.R.O. Loudspeaker for an acoustic diffuser for medium-low frequency signals, acoustic diffuser comprising said loudspeaker and production method
US9130445B1 (en) * 2014-08-04 2015-09-08 David Micah Katz Electromechanical transducer with non-circular voice coil
JP1549098S (OSRAM) * 2015-11-26 2016-05-16
DE102017122660A1 (de) 2016-10-04 2018-04-05 Sennheiser Electronic Gmbh & Co. Kg Planardynamischer Wandler
DE102017102219B4 (de) 2017-02-06 2025-12-31 Sonova Consumer Hearing Gmbh Planardynamischer Wandler
JP6874782B2 (ja) * 2019-03-11 2021-05-19 Tdk株式会社 磁気センサ
US11956589B1 (en) 2021-07-13 2024-04-09 Wisdom Audio Corp. PMD speaker mounting assembly and thermal control system for multiple drivers
US20240214737A1 (en) * 2021-08-13 2024-06-27 Beijing Edifier Technology Co., Ltd Diaphragm Assembly and Loudspeaker
CN113507670B (zh) * 2021-08-13 2024-08-27 北京爱德发科技有限公司 振膜组件及扬声器
CN114025299B (zh) * 2021-11-10 2022-08-02 常州星启电子科技有限公司 包含导电涂层的振膜及其在制备声学器件中的应用
EP4523427A1 (de) 2022-05-11 2025-03-19 Roland Jacques Planardynamischer schallwandler

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT239344B (de) * 1963-03-13 1965-03-25 Akg Akustische Kino Geraete Elektrodynamischer Kopfhörer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2347818A (en) * 1999-03-10 2000-09-13 Steff Lin Flat type loud speaker

Also Published As

Publication number Publication date
DE2166998B2 (de) 1979-05-23
GB1380930A (en) 1975-01-15
CA962760A (en) 1975-02-11
DE2164083C3 (de) 1978-04-06
US3674946A (en) 1972-07-04
FR2119026A1 (OSRAM) 1972-08-04
GB1380929A (en) 1975-01-15
IT944329B (it) 1973-04-20
DE2164083B2 (de) 1977-08-11
DE2166998A1 (de) 1977-10-06
DE2166998C3 (de) 1980-01-17
DE2164083A1 (de) 1972-07-13
FR2119026B1 (OSRAM) 1976-12-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee