DK164621C - Elektrodynamisk transducer - Google Patents

Elektrodynamisk transducer

Info

Publication number
DK164621C
DK164621C DK498389A DK498389A DK164621C DK 164621 C DK164621 C DK 164621C DK 498389 A DK498389 A DK 498389A DK 498389 A DK498389 A DK 498389A DK 164621 C DK164621 C DK 164621C
Authority
DK
Denmark
Prior art keywords
magnetic system
cover
electrodynamic transducer
membrane
insert
Prior art date
Application number
DK498389A
Other languages
English (en)
Other versions
DK498389D0 (da
DK498389A (da
DK164621B (da
Inventor
Kaj Boerge Hansen
Original Assignee
Kirk Acoustics As
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 Kirk Acoustics As filed Critical Kirk Acoustics As
Publication of DK498389D0 publication Critical patent/DK498389D0/da
Priority to DK498389A priority Critical patent/DK164621C/da
Priority to DE59009854T priority patent/DE59009854D1/de
Priority to AT90118074T priority patent/ATE130157T1/de
Priority to EP90118074A priority patent/EP0422424B1/de
Priority to ES90118074T priority patent/ES2078280T3/es
Priority to AU63651/90A priority patent/AU6365190A/en
Priority to CA002027106A priority patent/CA2027106A1/en
Priority to US07/594,734 priority patent/US5155773A/en
Priority to JP2272077A priority patent/JPH03208499A/ja
Publication of DK498389A publication Critical patent/DK498389A/da
Publication of DK164621B publication Critical patent/DK164621B/da
Application granted granted Critical
Publication of DK164621C publication Critical patent/DK164621C/da

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
    • H04R9/10—Telephone receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • 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
DK498389A 1989-10-09 1989-10-09 Elektrodynamisk transducer DK164621C (da)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DK498389A DK164621C (da) 1989-10-09 1989-10-09 Elektrodynamisk transducer
ES90118074T ES2078280T3 (es) 1989-10-09 1990-09-20 Convertidor electrodinamico.
AT90118074T ATE130157T1 (de) 1989-10-09 1990-09-20 Elektrodynamischer wandler.
EP90118074A EP0422424B1 (de) 1989-10-09 1990-09-20 Elektrodynamischer Wandler
DE59009854T DE59009854D1 (de) 1989-10-09 1990-09-20 Elektrodynamischer Wandler.
AU63651/90A AU6365190A (en) 1989-10-09 1990-10-02 Transducer
CA002027106A CA2027106A1 (en) 1989-10-09 1990-10-05 Electrodynamic transducer
US07/594,734 US5155773A (en) 1989-10-09 1990-10-09 Electrodynamic transducer including inset
JP2272077A JPH03208499A (ja) 1989-10-09 1990-10-09 動電型トランスデューサ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK498389A DK164621C (da) 1989-10-09 1989-10-09 Elektrodynamisk transducer
DK498389 1989-10-09

Publications (4)

Publication Number Publication Date
DK498389D0 DK498389D0 (da) 1989-10-09
DK498389A DK498389A (da) 1991-04-10
DK164621B DK164621B (da) 1992-07-20
DK164621C true DK164621C (da) 1992-12-07

Family

ID=8138403

Family Applications (1)

Application Number Title Priority Date Filing Date
DK498389A DK164621C (da) 1989-10-09 1989-10-09 Elektrodynamisk transducer

Country Status (9)

Country Link
US (1) US5155773A (da)
EP (1) EP0422424B1 (da)
JP (1) JPH03208499A (da)
AT (1) ATE130157T1 (da)
AU (1) AU6365190A (da)
CA (1) CA2027106A1 (da)
DE (1) DE59009854D1 (da)
DK (1) DK164621C (da)
ES (1) ES2078280T3 (da)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5231659A (en) * 1989-05-16 1993-07-27 Alcatel Business Systems Telephone handset with transducer assembly
JPH0733519Y2 (ja) * 1990-02-08 1995-07-31 フォスター電機株式会社 受話器
US5764784A (en) * 1994-09-12 1998-06-09 Sanyo Electric Co., Ltd. Electroacoustic transducer
DE19747562C2 (de) 1997-10-28 2000-09-28 Siemens Ag Verfahren und Anordnung zum Steuern der Ausbreitung von Magnetfeldern durch elektrodynamische/-magnetische Wandler, insbesondere in Telekommunikationsgeräten
AT412696B (de) * 1999-06-30 2005-05-25 Akg Acoustics Gmbh Elektroakustischer wandler
US6738483B1 (en) * 1999-10-12 2004-05-18 Sonic Systems, Inc. Overhead loudspeaker systems
US6636612B1 (en) * 2000-11-03 2003-10-21 Algo Sound, Inc. Speaker for use in confined spaces
US6633379B2 (en) 2001-06-08 2003-10-14 Semiconductor 300 Gmbh & Co. Kg Apparatus and method for measuring the degradation of a tool
US7058366B2 (en) * 2002-12-09 2006-06-06 Sony Ericsson Mobile Communications Ab Wireless terminal providing sound pressure level dissipation through channeled porting of sound
US7505602B2 (en) * 2003-02-28 2009-03-17 Sony Ericsson Mobile Communications Ab Mobile device with improved acoustic porting

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2404877A (en) * 1941-07-09 1946-07-30 Automatic Elect Lab Sound translating device
US2423014A (en) * 1943-05-10 1947-06-24 Permoflux Corp Pressure-equalizing housing for transducers
GB983997A (en) * 1962-07-31 1965-02-24 Gustav Krone Moving coil transducer for telecommunication purposes
US3539735A (en) * 1967-04-28 1970-11-10 Roanwell Corp Sintered transducer housing providing acoustical resistance and waterproofing
JPS5836879B2 (ja) * 1978-11-27 1983-08-12 健之 蜂須賀 雑音防止用マイクロフオン装置
DE2854560C2 (de) * 1978-12-18 1983-07-07 Hagenuk GmbH, 2300 Kiel Elektrodynamisches Mikrophon
JPS6042558Y2 (ja) * 1980-04-17 1985-12-27 ソニー株式会社 スピ−カ
EP0040948B1 (en) * 1980-05-23 1984-10-31 International Standard Electric Corporation Method of making an electro dynamic transducer
JPS5850789U (ja) * 1981-09-22 1983-04-06 パイオニア株式会社 車載用複合型スピ−カ
DK148550C (da) * 1981-12-10 1986-04-21 Standard Electric Kirk Elektrodynamisk transducer med bevaegelig spole
JPS594400A (ja) * 1982-06-30 1984-01-11 Toshiba Electric Equip Corp スピ−カ取付装置
US4529846A (en) * 1984-08-22 1985-07-16 Northern Telecom Limited Dynamic telephone receiver with magnetic shunt
US4796288A (en) * 1986-06-23 1989-01-03 Northern Telecom Limited Telephone handset with static discharge prevention
US4843628A (en) * 1986-07-10 1989-06-27 Stanton Magnetics, Inc. Inertial microphone/receiver with extended frequency response
DE3634619A1 (de) * 1986-10-10 1988-04-14 Siemens Ag Anordnung zum schutz vor spannungsueberschlaegen bei handapparaten der fernsprechtechnik
DE3634658A1 (de) * 1986-10-10 1988-04-14 Siemens Ag Anordnung zum schutz vor spannungsueberschlaegen bei handapparaten der fernsprechtechnik
DE3634620A1 (de) * 1986-10-10 1988-04-14 Siemens Ag Anordnung zum schutz vor spannungsueberschlaegen bei handapparaten der fernsprechtechnik
DK161288C (da) * 1988-10-21 1991-12-02 Alcatel Kirk As Telefonapparat-haandsaet
US4984268A (en) * 1988-11-21 1991-01-08 At&T Bell Laboratories Telephone handset construction
JPH0346292U (da) * 1989-09-14 1991-04-30

Also Published As

Publication number Publication date
AU6365190A (en) 1991-04-11
JPH03208499A (ja) 1991-09-11
EP0422424B1 (de) 1995-11-08
DK498389D0 (da) 1989-10-09
EP0422424A2 (de) 1991-04-17
EP0422424A3 (en) 1992-04-08
US5155773A (en) 1992-10-13
DK498389A (da) 1991-04-10
DE59009854D1 (de) 1995-12-14
DK164621B (da) 1992-07-20
ES2078280T3 (es) 1995-12-16
CA2027106A1 (en) 1991-04-10
ATE130157T1 (de) 1995-11-15

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Legal Events

Date Code Title Description
PBP Patent lapsed