NL44190C - - Google Patents

Info

Publication number
NL44190C
NL44190C NL44190DA NL44190C NL 44190 C NL44190 C NL 44190C NL 44190D A NL44190D A NL 44190DA NL 44190 C NL44190 C NL 44190C
Authority
NL
Netherlands
Application number
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.)
Publication of NL44190C publication Critical patent/NL44190C/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
    • H04R9/04—Construction, mounting, or centering of coil
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Toys (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
NL44190D 1934-12-05 NL44190C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34967/34A GB448271A (en) 1934-12-05 1934-12-05 Improvements in and relating to sound reproducing devices

Publications (1)

Publication Number Publication Date
NL44190C true NL44190C (no)

Family

ID=10372216

Family Applications (1)

Application Number Title Priority Date Filing Date
NL44190D NL44190C (no) 1934-12-05

Country Status (5)

Country Link
US (1) US2164374A (no)
BE (1) BE412034A (no)
FR (1) FR796804A (no)
GB (1) GB448271A (no)
NL (1) NL44190C (no)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556816A (en) * 1946-12-04 1951-06-12 Technicon Cardiograph Corp Polarized electromagnetic operator with damped coil armature
US2645684A (en) * 1948-06-30 1953-07-14 Rca Corp Noise discriminating system
US2538691A (en) * 1948-07-19 1951-01-16 Richard K Y Kim Voice coil for radio loud-speakers
US3792394A (en) * 1971-12-16 1974-02-12 J Bertagni Voice coil
US4201886A (en) * 1976-12-02 1980-05-06 Tenna Corporation Plural concentric moving coil speaker with push-pull voltage follower direct coupling
US4220832A (en) * 1976-12-02 1980-09-02 Tenna Corporation Two-way speaker with transformer-coupled split coil
US4297537A (en) * 1979-07-16 1981-10-27 Babb Burton A Dynamic loudspeaker
GB2118398B (en) * 1982-04-14 1986-04-03 Boaz Elieli Moving coil electroacoustic transducers
DE69431177T2 (de) * 1993-09-22 2003-05-08 Sony Corp Hornlautsprecher-System
JPH09163492A (ja) * 1995-12-06 1997-06-20 Pioneer Electron Corp スピーカ
DE19711592A1 (de) * 1997-03-20 1998-09-24 Nokia Deutschland Gmbh Schwingspulenanordnung und Verfahren zu ihrer Herstellung
US6904158B1 (en) * 1998-04-03 2005-06-07 Sony Corporation Speaker apparatus
US9143866B2 (en) * 2011-07-12 2015-09-22 Strata Audio LLC Voice coil former stiffener

Also Published As

Publication number Publication date
FR796804A (fr) 1936-04-16
GB448271A (en) 1936-06-05
BE412034A (no)
US2164374A (en) 1939-07-04

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