CA962760A - Electromagnetic transducer - Google Patents

Electromagnetic transducer

Info

Publication number
CA962760A
CA962760A CA130,866A CA130866A CA962760A CA 962760 A CA962760 A CA 962760A CA 130866 A CA130866 A CA 130866A CA 962760 A CA962760 A CA 962760A
Authority
CA
Canada
Prior art keywords
electromagnetic transducer
transducer
electromagnetic
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
CA130,866A
Other versions
CA130866S (en
Inventor
James M. Winey
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
Priority to CA210,647A priority Critical patent/CA966578A/en
Application granted granted Critical
Publication of CA962760A publication Critical patent/CA962760A/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)
CA130,866A 1970-12-23 1971-12-22 Electromagnetic transducer Expired CA962760A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA210,647A CA966578A (en) 1970-12-23 1974-10-03 Electromagnetic transducer

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA962760A true CA962760A (en) 1975-02-11

Family

ID=22281892

Family Applications (1)

Application Number Title Priority Date Filing Date
CA130,866A Expired CA962760A (en) 1970-12-23 1971-12-22 Electromagnetic transducer

Country Status (6)

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

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US3919499A (en) * 1974-01-11 1975-11-11 Magnepan Inc Planar speaker
JPS5610070Y2 (en) * 1974-06-07 1981-03-05
DE2461278B2 (en) * 1974-12-23 1976-12-16 Foster Electric Co., Ltd., Tokio ELECTROACOUSTIC CONVERTER
US4013846A (en) * 1975-08-28 1977-03-22 Minnesota Mining And Manufacturing Company Piston loudspeaker
JPS575996Y2 (en) * 1975-10-03 1982-02-04
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FR2422309A1 (en) * 1978-04-04 1979-11-02 Daniere Joannes Loudspeaker system reproducing bass to treble frequencies - has membranes acceleration measured to provide feedback for loudspeaker and power amplifier
US4210786A (en) * 1979-01-24 1980-07-01 Magnepan, Incorporated Magnetic field structure for planar speaker
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IL59942A (en) * 1980-04-28 1986-08-31 D P Lab Ltd Method and device for fluid transfer
FR2488765A1 (en) * 1980-08-13 1982-02-19 Telephonie Ind Commerciale Electrodynamic transducer usable as loudspeaker or microphone - has coil formed as printed circuit group of spirals on both faces of membrane above alternating concentric magnetic poles
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US4471173A (en) * 1982-03-01 1984-09-11 Magnepan, Inc. Piston-diaphragm speaker
US4471172A (en) * 1982-03-01 1984-09-11 Magnepan, Inc. Planar diaphragm transducer with improved magnetic circuit
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US4550228A (en) * 1983-02-22 1985-10-29 Apogee Acoustics, Inc. Ribbon speaker system
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ATE77879T1 (en) * 1985-04-17 1992-07-15 Geoquip Security Systems Ltd VIBRATION SENSITIVE TRANSDUCTOR.
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 (en) * 1988-02-26 1989-11-29 Yasuhiro Shinjiyou Speaker
US4849646A (en) * 1988-03-28 1989-07-18 Motorola, Inc. Air driven whistle generator
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US5430805A (en) * 1990-12-27 1995-07-04 Chain Reactions, Inc. Planar electromagnetic transducer
FR2687035A1 (en) * 1992-02-05 1993-08-06 Navarron Jean Pierre Device for sound reproduction by movement of a layer of 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
US6304662B1 (en) 1998-01-07 2001-10-16 American Technology Corporation Sonic emitter with foam stator
US20020076069A1 (en) * 1998-01-07 2002-06-20 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
GB2347818A (en) * 1999-03-10 2000-09-13 Steff Lin Flat type loud speaker
US20050195985A1 (en) * 1999-10-29 2005-09-08 American Technology Corporation Focused parametric array
AU2001239993A1 (en) * 2000-03-03 2001-09-17 American Technology Corporation Single end planar magnetic speaker
AU2001259387A1 (en) * 2000-05-03 2001-11-12 Wisdom Audio Corp. Planar speaker wiring layout
US7142688B2 (en) * 2001-01-22 2006-11-28 American Technology Corporation Single-ended planar-magnetic speaker
US6934402B2 (en) * 2001-01-26 2005-08-23 American Technology Corporation Planar-magnetic speakers with secondary magnetic structure
US7035425B2 (en) 2002-05-02 2006-04-25 Harman International Industries, Incorporated Frequency response enhancements for electro-dynamic loudspeakers
US7149321B2 (en) 2002-05-02 2006-12-12 Harman International Industries, Incorporated Electro-dynamic loudspeaker mounting system
US7155026B2 (en) 2002-05-02 2006-12-26 Harman International Industries, Incorporated Mounting bracket system
US7627134B2 (en) 2002-05-02 2009-12-01 Harman International Industries, Incorporated Magnet retention system in planar loudspeakers
US20040022409A1 (en) * 2002-05-02 2004-02-05 Hutt Steven W. Film attaching system
US20040042632A1 (en) * 2002-05-02 2004-03-04 Hutt Steven W. Directivity control of electro-dynamic loudspeakers
US7278200B2 (en) * 2002-05-02 2007-10-09 Harman International Industries, Incorporated Method of tensioning a diaphragm for an electro-dynamic loudspeaker
CN101877809B (en) * 2002-05-02 2013-06-12 哈曼国际工业有限公司 Electro-dynamic loudspeaker and ventilation method thereof
US7236608B2 (en) * 2002-05-02 2007-06-26 Harman International Industries, Incorporated Conductors for electro-dynamic loudspeakers
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
US7203332B2 (en) * 2002-05-02 2007-04-10 Harman International Industries, Incorporated Magnet arrangement for loudspeaker
US20060023902A1 (en) * 2002-08-14 2006-02-02 Thigpen F B Compliant diaphragm for planar magnetic 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
US7564981B2 (en) * 2003-10-23 2009-07-21 American Technology Corporation Method of adjusting linear parameters of a parametric ultrasonic signal to reduce non-linearities in decoupled audio output waves and system including same
CN100575944C (en) 2004-07-23 2009-12-30 电力研究所有限公司 Flexible electromagnetic acoustic transducer sensor
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
CN103168480B (en) 2010-06-14 2016-03-30 乌龟海岸公司 The parameter signals process improved and ejector system and correlation technique
US8942408B1 (en) 2011-07-22 2015-01-27 James Joseph Croft, III Magnetically one-side driven planar transducer with improved electro-magnetic circuit
TWI451769B (en) * 2011-12-27 2014-09-01 Univ Chung Hua Electro-acoustic transducer and method of manufacturing the same
WO2013106596A1 (en) 2012-01-10 2013-07-18 Parametric Sound Corporation Amplification systems, carrier tracking systems and related methods for use in parametric sound systems
US8958580B2 (en) 2012-04-18 2015-02-17 Turtle Beach Corporation Parametric transducers and 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
US8988911B2 (en) 2013-06-13 2015-03-24 Turtle Beach Corporation Self-bias emitter circuit
US9332344B2 (en) 2013-06-13 2016-05-03 Turtle Beach Corporation Self-bias emitter circuit
JP6255994B2 (en) * 2013-06-27 2018-01-10 株式会社リコー Energy converter
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 (en) * 2015-11-26 2016-05-16
DE102017122660A1 (en) 2016-10-04 2018-04-05 Sennheiser Electronic Gmbh & Co. Kg Planar dynamic transducer
DE102017102219A1 (en) 2017-02-06 2018-08-09 Sennheiser Electronic Gmbh & Co. Kg Planar dynamic transducer
JP6874782B2 (en) * 2019-03-11 2021-05-19 Tdk株式会社 Magnetic sensor
US11956589B1 (en) 2021-07-13 2024-04-09 Wisdom Audio Corp. PMD speaker mounting assembly and thermal control system for multiple drivers
WO2023015718A1 (en) * 2021-08-13 2023-02-16 北京爱德发科技有限公司 Diaphragm assembly and loudspeaker
CN113507670A (en) * 2021-08-13 2021-10-15 北京爱德发科技有限公司 Vibrating diaphragm subassembly and speaker
CN114025299B (en) * 2021-11-10 2022-08-02 常州星启电子科技有限公司 Diaphragm comprising a conductive coating and its use in the manufacture of an acoustic device
WO2023217955A1 (en) 2022-05-11 2023-11-16 Roland Jacques Planar-dynamic acoustic transducer

Family Cites Families (1)

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

Also Published As

Publication number Publication date
US3674946A (en) 1972-07-04
DE2164083C3 (en) 1978-04-06
FR2119026B1 (en) 1976-12-03
DE2164083B2 (en) 1977-08-11
FR2119026A1 (en) 1972-08-04
GB1380928A (en) 1975-01-15
DE2164083A1 (en) 1972-07-13
DE2166998C3 (en) 1980-01-17
DE2166998B2 (en) 1979-05-23
IT944329B (en) 1973-04-20
DE2166998A1 (en) 1977-10-06
GB1380929A (en) 1975-01-15
GB1380930A (en) 1975-01-15

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