NL164722C - ELECTRO-ACOUSTIC CONVERTER. - Google Patents

ELECTRO-ACOUSTIC CONVERTER.

Info

Publication number
NL164722C
NL164722C NL7202226.A NL7202226A NL164722C NL 164722 C NL164722 C NL 164722C NL 7202226 A NL7202226 A NL 7202226A NL 164722 C NL164722 C NL 164722C
Authority
NL
Netherlands
Prior art keywords
electro
acoustic converter
acoustic
converter
Prior art date
Application number
NL7202226.A
Other languages
Dutch (nl)
Other versions
NL7202226A (en
Original Assignee
Industrial Research Prod Inc
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 Industrial Research Prod Inc filed Critical Industrial Research Prod Inc
Publication of NL7202226A publication Critical patent/NL7202226A/xx
Application granted granted Critical
Publication of NL164722C publication Critical patent/NL164722C/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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/04—Microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/06—Telephone receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
NL7202226.A 1971-05-17 1972-02-21 ELECTRO-ACOUSTIC CONVERTER. NL164722C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14401971A 1971-05-17 1971-05-17

Publications (2)

Publication Number Publication Date
NL7202226A NL7202226A (en) 1972-11-21
NL164722C true NL164722C (en) 1981-01-15

Family

ID=22506712

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7202226.A NL164722C (en) 1971-05-17 1972-02-21 ELECTRO-ACOUSTIC CONVERTER.

Country Status (7)

Country Link
US (1) US3766332A (en)
JP (1) JPS5224842B1 (en)
CA (1) CA963570A (en)
DK (1) DK139370B (en)
FR (1) FR2138061B1 (en)
GB (1) GB1366613A (en)
NL (1) NL164722C (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1004669C2 (en) * 1996-12-02 1998-06-03 Microtronic Nederland Bv Transducer.
US6658134B1 (en) 1999-08-16 2003-12-02 Sonionmicrotronic Nederland B.V. Shock improvement for an electroacoustic transducer
US7164776B2 (en) * 2000-01-07 2007-01-16 Knowles Electronics, Llc. Vibration balanced receiver
JP2003520007A (en) * 2000-01-07 2003-06-24 ノウルズ エレクトロニクス エルエルシー Vibration balance receiver
US7072482B2 (en) 2002-09-06 2006-07-04 Sonion Nederland B.V. Microphone with improved sound inlet port
JP5265373B2 (en) 2005-11-11 2013-08-14 フィテック システムズ リミテッド Noise elimination earphone
US8135163B2 (en) * 2007-08-30 2012-03-13 Klipsch Group, Inc. Balanced armature with acoustic low pass filter
JP2009153103A (en) * 2007-10-02 2009-07-09 Phitek Systems Ltd Component for noise reducing earphone
US20090307730A1 (en) * 2008-05-29 2009-12-10 Mark Donaldson Media enhancement module
JP2012501609A (en) * 2008-08-29 2012-01-19 ザ・ペン・ステイト・リサーチ・ファウンデイション Method and apparatus for reducing distortion of a balanced armature device
US20110002474A1 (en) * 2009-01-29 2011-01-06 Graeme Colin Fuller Active Noise Reduction System Control
EP2226902A3 (en) * 2009-03-06 2013-03-13 Phitek Systems Limited In-flight entertainment system connector
US20110188668A1 (en) * 2009-09-23 2011-08-04 Mark Donaldson Media delivery system
US9818394B2 (en) * 2009-11-30 2017-11-14 Graeme Colin Fuller Realisation of controller transfer function for active noise cancellation
WO2011146429A1 (en) 2010-05-17 2011-11-24 Thales Avionics, Inc. Airline passenger seat modular user interface device
US9487295B2 (en) 2010-11-15 2016-11-08 William James Sim Vehicle media distribution system using optical transmitters
CN103748903B (en) 2011-06-01 2017-02-22 菲泰克系统有限公司 In-ear device incorporating active noise reduction

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB392318A (en) * 1932-03-05 1933-05-18 Radiophon G M B H Improvements in loud-speaking telephones or loud-speaker apparatus
US2297218A (en) * 1937-04-24 1942-09-29 Hans E Henrich Loud-speaker
NL106495C (en) * 1956-03-06
US3002057A (en) * 1956-03-29 1961-09-26 Vigren Sten Daniel Polarized electromagnetic device
US3111187A (en) * 1959-11-23 1963-11-19 H J Leak & Company Ltd Diaphragm for electro acoustic transducer
GB1058212A (en) * 1964-04-24 1967-02-08 Gen Electric Co Ltd Improvements in or relating to telephone receivers
US3617653A (en) * 1967-05-16 1971-11-02 Tibbetts Industries Magnetic reed type acoustic transducer with improved armature

Also Published As

Publication number Publication date
CA963570A (en) 1975-02-25
US3766332A (en) 1973-10-16
GB1366613A (en) 1974-09-11
DK139370B (en) 1979-02-05
DE2224148A1 (en) 1972-12-07
FR2138061A1 (en) 1972-12-29
FR2138061B1 (en) 1975-08-01
DK139370C (en) 1979-07-09
DE2224148B2 (en) 1976-12-09
NL7202226A (en) 1972-11-21
JPS5224842B1 (en) 1977-07-04

Similar Documents

Publication Publication Date Title
DK140360B (en) Electroacoustic converter.
NL161932B (en) DC-AC-AC CONVERTER.
DK139055B (en) Ultrasonic converter.
DK137820B (en) Electroacoustic converter.
NL173699C (en) ELECTROACOUSTIC CONVERTER.
CH558663A (en) BALLSHACKER.
DK127955B (en) Construction set.
BE783967A (en) GALVANIZER.
CH555461A (en) ECHAFAUDAGE.
CH545053A (en) Electroacoustic converter
NL164722C (en) ELECTRO-ACOUSTIC CONVERTER.
CH554480A (en) HARMONICATURE.
NL176604C (en) PRESSURE CONVERTER.
NL151609B (en) ELECTRO-ACOUSTIC CONVERSION DEVICE.
CH547567A (en) TURBOGENERATER.
CH556593A (en) REACTEUR NUCLEAIRE.
CH553706A (en) FOERDERER.
CH551693A (en) IMAGE CONVERTER.
CH552926A (en) ELECTROACOUSTIC CONVERTER ARRANGEMENT.
CH556032A (en) RETROREFLECTEUR.
CH558421A (en) ALLUME-FEU.
CH547101A (en) TROCART.
CH547215A (en) AEROSOL-VENTIL.
AT309550B (en) Electroacoustic converter
BE770100A (en) MEERPAS DRAADTREKMACHINE.

Legal Events

Date Code Title Description
SNR Assignments of patents or rights arising from examined patent applications

Owner name: KNOWLES ELECTRONICS, INC.

V1 Lapsed because of non-payment of the annual fee