AU465688B2 - Improvements in or relating to electroacoustic transducers - Google Patents

Improvements in or relating to electroacoustic transducers

Info

Publication number
AU465688B2
AU465688B2 AU49595/72A AU4959572A AU465688B2 AU 465688 B2 AU465688 B2 AU 465688B2 AU 49595/72 A AU49595/72 A AU 49595/72A AU 4959572 A AU4959572 A AU 4959572A AU 465688 B2 AU465688 B2 AU 465688B2
Authority
AU
Australia
Prior art keywords
relating
electroacoustic transducers
electroacoustic
transducers
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
AU49595/72A
Other versions
AU4959572A (en
Inventor
Donald Cragg William
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.)
Nokia Services Ltd
Original Assignee
Standard Telephone and Cables Pty 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
Application filed by Standard Telephone and Cables Pty Ltd filed Critical Standard Telephone and Cables Pty Ltd
Publication of AU4959572A publication Critical patent/AU4959572A/en
Application granted granted Critical
Publication of AU465688B2 publication Critical patent/AU465688B2/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
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
AU49595/72A 1971-12-23 1972-12-04 Improvements in or relating to electroacoustic transducers Expired AU465688B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB59930/71 1971-12-23
GB5993071A GB1364669A (en) 1971-12-23 1971-12-23 Electro acoustic transducers

Publications (2)

Publication Number Publication Date
AU4959572A AU4959572A (en) 1974-06-06
AU465688B2 true AU465688B2 (en) 1975-10-02

Family

ID=10484678

Family Applications (1)

Application Number Title Priority Date Filing Date
AU49595/72A Expired AU465688B2 (en) 1971-12-23 1972-12-04 Improvements in or relating to electroacoustic transducers

Country Status (5)

Country Link
US (1) US3836733A (en)
AU (1) AU465688B2 (en)
ES (1) ES409986A1 (en)
GB (1) GB1364669A (en)
IT (1) IT972504B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937904A (en) * 1974-08-07 1976-02-10 Hitachi Magnetics Corporation Moving magnet electroacoustic transducer
DE2810459C3 (en) * 1977-03-14 1986-11-13 Sergej Valentinovič Čeljabinsk Burundukov Electrodynamic converter of mechanical vibrations into electrical signals and vice versa, stereo and monophonic sound heads and electrodynamic microphone
GB9222677D0 (en) * 1992-10-29 1992-12-09 Knowles Electronics Co Electroacoustic transducer
US5647013C1 (en) * 1992-10-29 2001-05-08 Knowles Electronics Co Electroacoustic transducer
NL1004669C2 (en) * 1996-12-02 1998-06-03 Microtronic Nederland Bv Transducer.
US6658134B1 (en) 1999-08-16 2003-12-02 Sonionmicrotronic Nederland B.V. Shock improvement for an electroacoustic transducer
JP2005522176A (en) * 2002-04-02 2005-07-21 ビーイーアイ センサーズ アンド システムズ カンパニー インコーポレイテッド Linear voice coil actuator as a controllable compression spring by electromagnetic force
US8295536B2 (en) * 2010-03-31 2012-10-23 Bose Corporation Moving magnet levered loudspeaker
US8295537B2 (en) * 2010-03-31 2012-10-23 Bose Corporation Loudspeaker moment and torque balancing
US9055370B2 (en) 2012-08-31 2015-06-09 Bose Corporation Vibration-reducing passive radiators
US10028062B2 (en) 2013-03-15 2018-07-17 Bose Corporation Driving plural armatures with a common stator
US9601969B2 (en) 2014-03-07 2017-03-21 Bose Corporation Inhibiting rocking of loads driven by plural levers
US9258648B2 (en) 2014-03-07 2016-02-09 Bose Corporation Levered loudspeakers
US9357279B2 (en) 2014-03-07 2016-05-31 Bose Corporation Elastomeric torsion bushings for levered loudspeakers
US9497549B2 (en) 2014-03-07 2016-11-15 Bose Corporation Levered loudspeakers
CN104284279A (en) * 2014-11-03 2015-01-14 常州阿木奇声学科技有限公司 Moving iron trumpet magnetic circuit system
US10154347B2 (en) * 2015-10-23 2018-12-11 Bose Corporation Bushings constrained by compression in levered apparatus
CN108337587B (en) * 2017-01-20 2020-08-14 苏州三色峰电子有限公司 Telephone receiver suitable for automatic assembly and manufacturing method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1559158A (en) * 1923-12-11 1925-10-27 Gen Electric Sound-emitting device
US1761745A (en) * 1927-08-09 1930-06-03 Paramount Famous Lasky Corp Speaker
US2073561A (en) * 1934-08-16 1937-03-09 Mccracken John Sound reproducing means
US3695945A (en) * 1970-04-30 1972-10-03 Gen Electric Method of producing a sintered cobalt-rare earth intermetallic product

Also Published As

Publication number Publication date
IT972504B (en) 1974-05-31
AU4959572A (en) 1974-06-06
ES409986A1 (en) 1975-12-01
US3836733A (en) 1974-09-17
GB1364669A (en) 1974-08-29

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