NL7312472A - - Google Patents

Info

Publication number
NL7312472A
NL7312472A NL7312472A NL7312472A NL7312472A NL 7312472 A NL7312472 A NL 7312472A NL 7312472 A NL7312472 A NL 7312472A NL 7312472 A NL7312472 A NL 7312472A NL 7312472 A NL7312472 A NL 7312472A
Authority
NL
Netherlands
Application number
NL7312472A
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 NL7312472A publication Critical patent/NL7312472A/xx
Priority to FR7431000A priority Critical patent/FR2244117A1/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
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/013—Electrostatic transducers characterised by the use of electrets for loudspeakers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49005—Acoustic transducer

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
NL7312472A 1972-09-08 1973-09-14 NL7312472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7431000A FR2244117A1 (en) 1973-09-14 1974-09-13 Adaptor branch-pipe for plastic piping - connected with bowl-shaped part and communicating with piping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA151,244A CA989514A (en) 1972-09-08 1972-09-08 Electromechanical transducer and method of making same

Publications (1)

Publication Number Publication Date
NL7312472A true NL7312472A (en) 1974-03-12

Family

ID=4094380

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7312472A NL7312472A (en) 1972-09-08 1973-09-14

Country Status (7)

Country Link
US (1) US3894333A (en)
JP (1) JPS49101017A (en)
CA (1) CA989514A (en)
DE (1) DE2345285A1 (en)
FR (1) FR2199242B1 (en)
GB (1) GB1444763A (en)
NL (1) NL7312472A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4382328A (en) * 1981-01-02 1983-05-10 Janszen Arthur A Method of making stationary electrodes for electrostatic transducers
US4533794A (en) * 1983-05-23 1985-08-06 Beveridge Harold N Electrode for electrostatic transducer
SE505752C2 (en) * 1995-12-22 1997-10-06 Tore Fors Speaker
US6760462B1 (en) 2003-01-09 2004-07-06 Eminent Technology Incorporated Planar diaphragm loudspeakers with non-uniform air resistive loading for low frequency modal control
RU2440693C2 (en) * 2006-01-03 2012-01-20 Транспарент Саунд Текнолоджи БИ.ВИ.,NL Electrostatic acoustic systems and methods
TWI343756B (en) * 2009-08-10 2011-06-11 Ind Tech Res Inst Flat loudspeaker structure
TWM395976U (en) * 2010-06-30 2011-01-01 Tsung-Hung Wu Electret electroacoustic transducer
CN102843628B (en) * 2011-06-24 2015-01-07 富祐鸿科技股份有限公司 Earphone sounding structure and assembling method thereof
US8699740B2 (en) * 2011-07-22 2014-04-15 Fortune Grand Technology Inc. Headphone sound-generating structure and method of assembling same
CN106341748A (en) * 2015-07-17 2017-01-18 富祐鸿科技股份有限公司 Electrostatic earphone sounding structure
US10231060B2 (en) * 2015-12-23 2019-03-12 Sennheiser Electronic Gmbh & Co. Kg Electrostatic headphones
US10697230B2 (en) 2018-02-27 2020-06-30 Taylor Made Group, Llc High strength window or door system
US11496838B2 (en) * 2020-04-18 2022-11-08 Audeze, Llc Electroacoustic transducer assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474197A (en) * 1964-10-24 1969-10-21 Tesla Np Electret microphone
US3389226A (en) * 1964-12-29 1968-06-18 Gen Electric Electrostatic loudspeaker
DE1639444B2 (en) * 1967-05-15 1972-08-03 Thermo Electron Engineering Corp., Waltham, Mass. (V.StA.) ELECTROACOUSTIC CONVERTER
FR2021232A1 (en) * 1968-10-22 1970-07-17 Kureha Chemical Ind Co Ltd
JPS4815867B1 (en) * 1969-08-28 1973-05-17
JPS4840084B1 (en) * 1969-11-19 1973-11-28
JPS4912598Y1 (en) * 1970-07-14 1974-03-28

Also Published As

Publication number Publication date
CA989514A (en) 1976-05-18
FR2199242B1 (en) 1978-11-03
DE2345285A1 (en) 1974-03-21
GB1444763A (en) 1976-08-04
US3894333A (en) 1975-07-15
JPS49101017A (en) 1974-09-25
FR2199242A1 (en) 1974-04-05

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Legal Events

Date Code Title Description
BV The patent application has lapsed