FR2199242B1 - - Google Patents

Info

Publication number
FR2199242B1
FR2199242B1 FR7332357A FR7332357A FR2199242B1 FR 2199242 B1 FR2199242 B1 FR 2199242B1 FR 7332357 A FR7332357 A FR 7332357A FR 7332357 A FR7332357 A FR 7332357A FR 2199242 B1 FR2199242 B1 FR 2199242B1
Authority
FR
France
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
FR7332357A
Other languages
French (fr)
Other versions
FR2199242A1 (pl
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.)
Uniroyal Ltd Canada
Original Assignee
Uniroyal Ltd Canada
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 Uniroyal Ltd Canada filed Critical Uniroyal Ltd Canada
Publication of FR2199242A1 publication Critical patent/FR2199242A1/fr
Application granted granted Critical
Publication of FR2199242B1 publication Critical patent/FR2199242B1/fr
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
    • 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)
FR7332357A 1972-09-08 1973-09-07 Expired FR2199242B1 (pl)

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 (2)

Publication Number Publication Date
FR2199242A1 FR2199242A1 (pl) 1974-04-05
FR2199242B1 true FR2199242B1 (pl) 1978-11-03

Family

ID=4094380

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7332357A Expired FR2199242B1 (pl) 1972-09-08 1973-09-07

Country Status (7)

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

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 (sv) * 1995-12-22 1997-10-06 Tore Fors Högtalare
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 (ru) * 2006-01-03 2012-01-20 Транспарент Саунд Текнолоджи БИ.ВИ.,NL Электростатические акустические системы и способы
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 (zh) * 2011-06-24 2015-01-07 富祐鸿科技股份有限公司 耳机发声结构及其组装方法
US8699740B2 (en) * 2011-07-22 2014-04-15 Fortune Grand Technology Inc. Headphone sound-generating structure and method of assembling same
CN106341748A (zh) * 2015-07-17 2017-01-18 富祐鸿科技股份有限公司 静电耳机发声结构
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 (de) * 1967-05-15 1972-08-03 Thermo Electron Engineering Corp., Waltham, Mass. (V.StA.) Elektroakustischer wandler
FR2021232A1 (pl) * 1968-10-22 1970-07-17 Kureha Chemical Ind Co Ltd
JPS4815867B1 (pl) * 1969-08-28 1973-05-17
JPS4840084B1 (pl) * 1969-11-19 1973-11-28
JPS4912598Y1 (pl) * 1970-07-14 1974-03-28

Also Published As

Publication number Publication date
CA989514A (en) 1976-05-18
DE2345285A1 (de) 1974-03-21
GB1444763A (en) 1976-08-04
NL7312472A (pl) 1974-03-12
US3894333A (en) 1975-07-15
JPS49101017A (pl) 1974-09-25
FR2199242A1 (pl) 1974-04-05

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Legal Events

Date Code Title Description
ST Notification of lapse