CA918798A - Moving coil transducers - Google Patents

Moving coil transducers

Info

Publication number
CA918798A
CA918798A CA058221A CA58221A CA918798A CA 918798 A CA918798 A CA 918798A CA 058221 A CA058221 A CA 058221A CA 58221 A CA58221 A CA 58221A CA 918798 A CA918798 A CA 918798A
Authority
CA
Canada
Prior art keywords
moving coil
coil transducers
transducers
moving
coil
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
CA058221A
Inventor
E. B. D. Bradshaw Leslie
W. Tester Norman
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.)
International Telephone and Telegraph Corp
Original Assignee
International Telephone and Telegraph Corp
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 International Telephone and Telegraph Corp filed Critical International Telephone and Telegraph Corp
Application granted granted Critical
Publication of CA918798A publication Critical patent/CA918798A/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • 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
CA058221A 1968-08-08 1969-07-29 Moving coil transducers Expired CA918798A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37939/68A GB1219918A (en) 1968-08-08 1968-08-08 Improvements in and relating to moving coil transducers

Publications (1)

Publication Number Publication Date
CA918798A true CA918798A (en) 1973-01-09

Family

ID=10400082

Family Applications (1)

Application Number Title Priority Date Filing Date
CA058221A Expired CA918798A (en) 1968-08-08 1969-07-29 Moving coil transducers

Country Status (7)

Country Link
US (1) US3614335A (en)
CA (1) CA918798A (en)
CH (1) CH505525A (en)
DE (1) DE1939837A1 (en)
ES (1) ES370321A1 (en)
FR (1) FR2019332A1 (en)
GB (1) GB1219918A (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1659551B1 (en) * 1967-01-21 1972-05-25 Braas & Co Gmbh Distance compensation plate for cladding panels
GB1531791A (en) * 1976-03-17 1978-11-08 Rank Organisation Ltd Transducers
FR2363255A1 (en) * 1976-08-27 1978-03-24 Bose Corp LOUDSPEAKER AND METHOD OF MANUFACTURING
DE2929432C2 (en) * 1979-07-20 1981-08-13 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Method of manufacturing an electrodynamic transducer
JPS57196698A (en) * 1981-05-22 1982-12-02 Int Standard Electric Corp Dynamic converter and method of producing same
US4507800A (en) * 1982-01-06 1985-03-26 Analog & Digital Systems, Inc. Enclosed magnet loudspeaker
GB8928899D0 (en) * 1989-12-21 1990-02-28 Knowles Electronics Co Coil assemblies
AT403751B (en) * 1996-06-19 1998-05-25 Akg Akustische Kino Geraete METHOD FOR PRODUCING A MEMBRANE FOR AN ELECTROACOUSTIC TRANSDUCER
JP3797916B2 (en) * 2001-10-30 2006-07-19 シチズン電子株式会社 Speaker and manufacturing method thereof
JP3882589B2 (en) * 2001-11-14 2007-02-21 ソニー株式会社 Speaker
JP5908994B2 (en) * 2012-12-17 2016-04-26 京セラ株式会社 SOUND GENERATOR, SOUND GENERATOR, AND ELECTRONIC DEVICE
WO2014103424A1 (en) * 2012-12-25 2014-07-03 京セラ株式会社 Sound generator, sound generation device and electronic device
CN204721603U (en) * 2012-12-25 2015-10-21 京瓷株式会社 Sound generator, sound generating apparatus and electronic equipment
DE202014001433U1 (en) 2014-02-19 2015-02-20 Harman Becker Automotive Systems Gmbh speaker
US9154864B1 (en) * 2014-04-30 2015-10-06 Harman International Industries, Inc. Speaker assembly
US9723410B2 (en) * 2014-07-08 2017-08-01 Harman International Industries, Incorporated Speaker assembly
US9872109B2 (en) 2014-12-17 2018-01-16 Knowles Electronics, Llc Shared coil receiver
FR3046005B1 (en) * 2015-12-17 2018-02-02 Delphi Technologies, Inc. SOUND TRANSMITTING DEVICE

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1915358A (en) * 1930-04-11 1933-06-27 Bell Telephone Labor Inc Electrodynamic device
US1847702A (en) * 1931-05-02 1932-03-01 Bell Telephone Labor Inc Sound translating device
US2293078A (en) * 1939-12-05 1942-08-18 B A Proctor Company Inc Microphone
US2458158A (en) * 1942-11-25 1949-01-04 Permoflux Corp Magnetically shielded electrodynamic sound reproducer
US2585052A (en) * 1948-04-23 1952-02-12 Int Standard Electric Corp Granule type acoustic transducer
US2523802A (en) * 1949-08-06 1950-09-26 Joseph D Zimmerman Electrodynamic pillow-type loudspeaker
DE1153421B (en) * 1959-01-14 1963-08-29 Peiker Acustic Fabrik Elektroa Electrodynamic sound device
DE1121654B (en) * 1960-08-31 1962-01-11 Siemens Ag Method and centering ring for centering the voice coil of an electroacoustic transducer with an annular gap magnet system
CH407233A (en) * 1963-12-14 1966-02-15 Peiker Heinrich Electroacoustic converter

Also Published As

Publication number Publication date
US3614335A (en) 1971-10-19
DE1939837A1 (en) 1970-02-19
GB1219918A (en) 1971-01-20
CH505525A (en) 1971-03-31
ES370321A1 (en) 1971-05-16
FR2019332A1 (en) 1970-07-03

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