DE680788C - Mit mehreren Schwingspulen ausgeruesteter elektrodynamischer Lautsprecher - Google Patents

Mit mehreren Schwingspulen ausgeruesteter elektrodynamischer Lautsprecher

Info

Publication number
DE680788C
DE680788C DER90177D DER0090177D DE680788C DE 680788 C DE680788 C DE 680788C DE R90177 D DER90177 D DE R90177D DE R0090177 D DER0090177 D DE R0090177D DE 680788 C DE680788 C DE 680788C
Authority
DE
Germany
Prior art keywords
membrane
coil
winding
voice coil
frequencies
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
DER90177D
Other languages
German (de)
English (en)
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Application granted granted Critical
Publication of DE680788C publication Critical patent/DE680788C/de
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
    • H04R9/06—Loudspeakers
    • 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
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • 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
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Circuit For Audible Band Transducer (AREA)
DER90177D 1933-03-17 1934-03-17 Mit mehreren Schwingspulen ausgeruesteter elektrodynamischer Lautsprecher Expired DE680788C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US661237A US2007747A (en) 1933-03-17 1933-03-17 Acoustic apparatus

Publications (1)

Publication Number Publication Date
DE680788C true DE680788C (de) 1939-09-08

Family

ID=24652747

Family Applications (1)

Application Number Title Priority Date Filing Date
DER90177D Expired DE680788C (de) 1933-03-17 1934-03-17 Mit mehreren Schwingspulen ausgeruesteter elektrodynamischer Lautsprecher

Country Status (9)

Country Link
US (1) US2007747A (fr)
AT (1) AT143569B (fr)
BE (1) BE402059A (fr)
CH (1) CH179149A (fr)
DE (1) DE680788C (fr)
DK (1) DK50698C (fr)
FR (1) FR770109A (fr)
GB (1) GB439561A (fr)
NL (1) NL40839C (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE945568C (de) * 1937-04-30 1956-07-12 Telefunken Gmbh Lautsprecher mit zwei aus Werkstoffen verschiedener Steifigkeit und Leichtigkeit hergestellten kegelfoermigen Membranen
US2489862A (en) * 1943-01-07 1949-11-29 Gen Electric Damping for dynamic loudspeakers
US2443177A (en) * 1944-02-28 1948-06-15 Submarine Signal Co Submarine signaling apparatus
US2565069A (en) * 1946-03-30 1951-08-21 Rola Company Inc Loud-speaker of the double diaphragm type
US2534040A (en) * 1947-04-21 1950-12-12 Radio Television Inst Inc Multiple section diaphragm loud-speaker
US2645684A (en) * 1948-06-30 1953-07-14 Rca Corp Noise discriminating system
GB667170A (en) * 1948-10-29 1952-02-27 Paul Gustavus Adolphus Helmuth Improvements in moving coil loudspeakers
US2638510A (en) * 1949-01-06 1953-05-12 Caesar David Zeitouni Duplex loud-speaker
US2641329A (en) * 1950-05-29 1953-06-09 Univ Loudspeakers Inc Loud-speaker diaphragm with transversely arched stiffener means
BE519367A (fr) * 1951-12-07
DE1016754B (de) * 1953-12-07 1957-10-03 Carl Ernst Eichhorn Spulenkombination fuer magnetische und dynamische Schwingsysteme, z.B. Lautsprecher, Mikrophone, Tonabnehmer sowie fuer die Primaerseite von Ausgangsuebertragern
US2832828A (en) * 1955-09-26 1958-04-29 Arthur Blumenfeld Loudspeaker circuitry
US3350513A (en) * 1964-06-22 1967-10-31 Alfred H Roberts Cone loudspeakers
US3814857A (en) * 1969-11-04 1974-06-04 N Thomasen Two-way loudspeaker system with two tandem-connected high-range speakers
US4383134A (en) * 1980-03-10 1983-05-10 Electro Audio Dynamics, Inc. Loudspeaker systems
JPS6175696U (fr) * 1984-10-23 1986-05-21
DE3603537A1 (de) * 1986-02-05 1987-08-06 Pfleid Wohnraumakustik Gmbh Breitbandlautsprecher
US5103482A (en) * 1988-07-28 1992-04-07 Fabri Conti Lucas Apparatus and method for reproducing high fidelity sound
US10277984B2 (en) * 2016-06-21 2019-04-30 Dongguan Li Yin Technology Limited Multi-strand independent input-output voice coil

Also Published As

Publication number Publication date
DK50698C (da) 1935-09-30
BE402059A (fr)
US2007747A (en) 1935-07-09
GB439561A (en) 1935-12-10
NL40839C (fr)
CH179149A (de) 1935-08-31
FR770109A (fr) 1934-09-08
AT143569B (de) 1935-11-25

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