GB1444763A - Electromechanical transducers - Google Patents

Electromechanical transducers

Info

Publication number
GB1444763A
GB1444763A GB4178273A GB4178273A GB1444763A GB 1444763 A GB1444763 A GB 1444763A GB 4178273 A GB4178273 A GB 4178273A GB 4178273 A GB4178273 A GB 4178273A GB 1444763 A GB1444763 A GB 1444763A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
electrets
electret
stators
sept
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
GB4178273A
Other languages
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.)
UNIROYAL Ltd
Original Assignee
UNIROYAL Ltd
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 filed Critical UNIROYAL Ltd
Publication of GB1444763A publication Critical patent/GB1444763A/en
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)
GB4178273A 1972-09-08 1973-09-05 Electromechanical transducers Expired GB1444763A (en)

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
GB1444763A true GB1444763A (en) 1976-08-04

Family

ID=4094380

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4178273A Expired GB1444763A (en) 1972-09-08 1973-09-05 Electromechanical transducers

Country Status (7)

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

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
DE102016125077A1 (de) * 2015-12-23 2017-06-29 Sennheiser Electronic Gmbh & Co. Kg Elektrostatischer Kopfhörer
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
DE1247401B (de) * 1964-10-24 1967-08-17 Tesla Np Elektretmikrophon und Verfahren zu dessen Montage
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 (et) * 1968-10-22 1970-07-17 Kureha Chemical Ind Co Ltd
JPS4815867B1 (et) * 1969-08-28 1973-05-17
JPS4840084B1 (et) * 1969-11-19 1973-11-28
JPS4912598Y1 (et) * 1970-07-14 1974-03-28

Also Published As

Publication number Publication date
FR2199242B1 (et) 1978-11-03
NL7312472A (et) 1974-03-12
US3894333A (en) 1975-07-15
DE2345285A1 (de) 1974-03-21
CA989514A (en) 1976-05-18
JPS49101017A (et) 1974-09-25
FR2199242A1 (et) 1974-04-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee