NL7217774A - - Google Patents

Info

Publication number
NL7217774A
NL7217774A NL7217774A NL7217774A NL7217774A NL 7217774 A NL7217774 A NL 7217774A NL 7217774 A NL7217774 A NL 7217774A NL 7217774 A NL7217774 A NL 7217774A NL 7217774 A NL7217774 A NL 7217774A
Authority
NL
Netherlands
Application number
NL7217774A
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 filed Critical
Publication of NL7217774A publication Critical patent/NL7217774A/xx

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
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
NL7217774A 1972-01-21 1972-12-28 NL7217774A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21971872A 1972-01-21 1972-01-21

Publications (1)

Publication Number Publication Date
NL7217774A true NL7217774A (fr) 1973-07-24

Family

ID=22820492

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7217774A NL7217774A (fr) 1972-01-21 1972-12-28

Country Status (9)

Country Link
US (1) US3763334A (fr)
JP (1) JPS4883817A (fr)
BE (1) BE794025A (fr)
DE (1) DE2302385A1 (fr)
ES (1) ES410589A1 (fr)
FR (1) FR2168575B1 (fr)
GB (1) GB1409789A (fr)
IT (1) IT978181B (fr)
NL (1) NL7217774A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645960A (en) * 1979-07-30 1987-02-24 Litton Systems, Inc. Ferro-fluid bearing
US4451811A (en) * 1979-07-30 1984-05-29 Litton Systems, Inc. Magnet structure
US4878560A (en) * 1989-03-16 1989-11-07 Scott Robert T Earmold
NO167699C (no) * 1989-05-16 1991-11-27 Infrawave Tech As Elektromekanisk transduser for lavfrekvente vibrasjoner.
EP0575384B1 (fr) * 1991-03-13 1996-12-11 ITT Automotive Europe GmbH Amortisseur bitube
DE69430776T2 (de) * 1993-04-28 2003-03-27 Matsushita Electric Industrial Co., Ltd. Lautsprecherapparat
DE29512102U1 (de) * 1995-07-27 1995-10-05 Nokia (Deutschland) Gmbh, 75175 Pforzheim Magnetsystem
DE19616794B4 (de) * 1996-04-26 2005-09-29 Harman Audio Electronic Systems Gmbh Lautsprecher
DE10215364B4 (de) * 2002-04-08 2004-05-27 Harman/Becker Automotive Systems Gmbh (Straubing Division) Antriebsanordnung für einen Lautsprecher
DE10232643A1 (de) * 2002-07-18 2004-02-12 Harman/Becker Automotive Systems Gmbh (Straubing Division) Antriebsanordnung für einen Lautsprecher
FR2960738B1 (fr) * 2010-05-28 2015-09-25 Focal Jmlab Haut-parleur acoustique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293078A (en) * 1939-12-05 1942-08-18 B A Proctor Company Inc Microphone
US2860721A (en) * 1954-03-24 1958-11-18 Fauthal A Hassan Sound reproducing device
DE971442C (de) * 1954-08-29 1959-01-29 Standard Elek K Lorenz Ag Dynamischer Lautsprecher
USRE26030E (en) * 1956-02-28 1966-05-24 Dynamic transducer
US3046362A (en) * 1956-11-06 1962-07-24 Stanley F White Speaker
US2923783A (en) * 1957-06-17 1960-02-02 Stanley F White Electro-acoustical transducer
US3413579A (en) * 1966-03-14 1968-11-26 Westinghouse Electric Corp Magnetic field assembly for electro-mechanical transducers

Also Published As

Publication number Publication date
IT978181B (it) 1974-09-20
GB1409789A (en) 1975-10-15
ES410589A1 (es) 1975-12-16
FR2168575B1 (fr) 1977-02-04
US3763334A (en) 1973-10-02
FR2168575A1 (fr) 1973-08-31
DE2302385A1 (de) 1973-07-26
JPS4883817A (fr) 1973-11-08
BE794025A (fr) 1973-05-02

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