SE8101724L - ELECTROACUSTIC ELECTRODYNAMIC TYPE CONVERTER - Google Patents

ELECTROACUSTIC ELECTRODYNAMIC TYPE CONVERTER

Info

Publication number
SE8101724L
SE8101724L SE8101724A SE8101724A SE8101724L SE 8101724 L SE8101724 L SE 8101724L SE 8101724 A SE8101724 A SE 8101724A SE 8101724 A SE8101724 A SE 8101724A SE 8101724 L SE8101724 L SE 8101724L
Authority
SE
Sweden
Prior art keywords
electroacustic
type converter
electrodynamic type
converter
membrane
Prior art date
Application number
SE8101724A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
E Kerschbaum
Original Assignee
Akg Akustische Kino Geraete
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
Priority claimed from AT151080A external-priority patent/AT365875B/en
Application filed by Akg Akustische Kino Geraete filed Critical Akg Akustische Kino Geraete
Publication of SE8101724L publication Critical patent/SE8101724L/en

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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

Converter comprising in particular a sensing telephonic capsule with a permanent ring-shaped magnet (1) and plunger coil (9) which actuates a membrane (5) in a flat ring crossed by the lines of force of the magnetic field. The magnetic system (1, 2, 3) is adjacent to the opening of the converter housing (7) and the membrane (5) extends between the magnetic system and the inner wall of the housing.
SE8101724A 1980-03-20 1981-03-18 ELECTROACUSTIC ELECTRODYNAMIC TYPE CONVERTER SE8101724L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT151080A AT365875B (en) 1974-06-01 1980-03-20 CAN-shaped earpiece for telephones

Publications (1)

Publication Number Publication Date
SE8101724L true SE8101724L (en) 1981-09-21

Family

ID=3515269

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8101724A SE8101724L (en) 1980-03-20 1981-03-18 ELECTROACUSTIC ELECTRODYNAMIC TYPE CONVERTER

Country Status (5)

Country Link
CH (1) CH653198A5 (en)
DE (2) DE3050350D2 (en)
FR (1) FR2478927A1 (en)
SE (1) SE8101724L (en)
WO (1) WO1981003099A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3033631A1 (en) * 1980-09-06 1982-04-29 Fried. Krupp Gmbh, 4300 Essen Telephone receiver shell injection moulded to accurate dimensions - from polyamide or polycarbonate contg. glass fibres or beads (SE 13.4.82)
FR2542551A1 (en) * 1983-03-07 1984-09-14 Picart Lebas Electroacoustic transducer of dynamic type, in particular for apparatuses
US4727583A (en) * 1986-10-28 1988-02-23 Motorola, Inc. Telephone transducer with improved frequency response

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR858087A (en) * 1939-04-19 1940-11-16 Electro-dynamic apparatus intended to transform sounds and comprising an oscillating coil placed in a magnetic field
US2440439A (en) * 1942-07-04 1948-04-27 Permoflux Corp Permanent magnet electrodynamic transducer
GB669883A (en) * 1949-04-21 1952-04-09 Ericsson Telefon Ab L M Electro-acoustic transducers

Also Published As

Publication number Publication date
CH653198A5 (en) 1985-12-13
DE3050350C1 (en) 1989-05-11
FR2478927A1 (en) 1981-09-25
WO1981003099A1 (en) 1981-10-29
DE3050350D2 (en) 1982-04-29

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