DE2506988B2 - Elektroakustischer wandler - Google Patents

Elektroakustischer wandler

Info

Publication number
DE2506988B2
DE2506988B2 DE19752506988 DE2506988A DE2506988B2 DE 2506988 B2 DE2506988 B2 DE 2506988B2 DE 19752506988 DE19752506988 DE 19752506988 DE 2506988 A DE2506988 A DE 2506988A DE 2506988 B2 DE2506988 B2 DE 2506988B2
Authority
DE
Germany
Prior art keywords
electrode
membranes
distortion
membrane
electret
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.)
Ceased
Application number
DE19752506988
Other languages
German (de)
English (en)
Other versions
DE2506988A1 (de
Inventor
Nobuo Yokohama; Suehiro Kenji Kawasaki Kanagawa; Yakushiji (Japan)
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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
Priority claimed from JP2016074A external-priority patent/JPS5944840B2/ja
Priority claimed from JP2016274A external-priority patent/JPS50115520A/ja
Priority claimed from JP10006274A external-priority patent/JPS5127318A/ja
Application filed by Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of DE2506988A1 publication Critical patent/DE2506988A1/de
Publication of DE2506988B2 publication Critical patent/DE2506988B2/de
Ceased 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
DE19752506988 1974-02-20 1975-02-19 Elektroakustischer wandler Ceased DE2506988B2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2016074A JPS5944840B2 (ja) 1974-02-20 1974-02-20 静電型電気音響変換器
JP2016274A JPS50115520A (en:Method) 1974-02-20 1974-02-20
JP10006274A JPS5127318A (ja) 1974-08-31 1974-08-31 Seidengatadenkionkyohenkanki

Publications (2)

Publication Number Publication Date
DE2506988A1 DE2506988A1 (de) 1975-08-21
DE2506988B2 true DE2506988B2 (de) 1976-11-25

Family

ID=27282925

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752506988 Ceased DE2506988B2 (de) 1974-02-20 1975-02-19 Elektroakustischer wandler

Country Status (6)

Country Link
US (1) US3980838A (en:Method)
CA (1) CA1030648A (en:Method)
DE (1) DE2506988B2 (en:Method)
DK (1) DK60575A (en:Method)
FR (1) FR2261675B1 (en:Method)
GB (1) GB1504971A (en:Method)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1025994A (en) * 1975-07-08 1978-02-07 Uniroyal Ltd. Electromechanical transducer
US4041446A (en) * 1976-05-20 1977-08-09 The United States Of America As Represented By The Secretary Of The Navy Capacitive-type displacement and pressure sensitive transducer
JPS55120300A (en) * 1979-03-08 1980-09-16 Sony Corp Two-way electrostatic microphone
GB2230911A (en) * 1989-04-25 1990-10-31 Francis Kiarie Gathige Electrical circuits
US5450498A (en) * 1993-07-14 1995-09-12 The University Of British Columbia High pressure low impedance electrostatic transducer
DK172085B1 (da) * 1995-06-23 1997-10-13 Microtronic As Mikromekanisk mikrofon
US20060082158A1 (en) * 2004-10-15 2006-04-20 Schrader Jeffrey L Method and device for supplying power from acoustic energy
WO2007024909A1 (en) * 2005-08-23 2007-03-01 Analog Devices, Inc. Multi-microphone system
TWI343756B (en) * 2009-08-10 2011-06-11 Ind Tech Res Inst Flat loudspeaker structure
TWI405472B (zh) * 2008-07-31 2013-08-11 Htc Corp 電子裝置及其電聲換能器
US8411882B2 (en) * 2008-10-31 2013-04-02 Htc Corporation Electronic device with electret electro-acoustic transducer
TWI405474B (zh) * 2008-12-31 2013-08-11 Htc Corp 可撓式冷光電聲致動器及使用該可撓式冷光電聲致動器之電子裝置
JP5336326B2 (ja) * 2009-10-30 2013-11-06 株式会社オーディオテクニカ コンデンサマイクロホンユニットおよびコンデンサマイクロホン
TWI439139B (zh) * 2010-06-17 2014-05-21 Htc Corp 電容式電聲轉換系統及其電容式電聲轉換器
TWM395976U (en) * 2010-06-30 2011-01-01 Tsung-Hung Wu Electret electroacoustic transducer
EP2432249A1 (en) 2010-07-02 2012-03-21 Knowles Electronics Asia PTE. Ltd. Microphone
WO2019222733A1 (en) * 2018-05-18 2019-11-21 Clean Energy Labs, Llc Compact electroacoustic transducer and loudspeaker system and method of use thereof
EP3803554A4 (en) 2018-05-24 2022-06-08 The Research Foundation for The State University of New York Capacitive sensor
US20210058712A1 (en) * 2019-08-22 2021-02-25 Clean Energy Labs, Llc Compact electroacoustic transducer and loudspeaker system and method of use thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB801351A (en) * 1953-10-16 1958-09-10 Standard Telephones Cables Ltd Improvements in or relating to condenser microphone arrangements
GB832276A (en) * 1958-12-02 1960-04-06 Standard Telephones Cables Ltd Improvements in or relating to electro-acoustic transducers
NL281794A (en:Method) * 1961-08-07
NL281549A (en:Method) * 1961-09-25
JPS4912598Y1 (en:Method) * 1970-07-14 1974-03-28
JPS5221364B2 (en:Method) * 1971-11-04 1977-06-10
US3896274A (en) * 1973-10-04 1975-07-22 Thermo Electron Corp Electret earphone

Also Published As

Publication number Publication date
GB1504971A (en) 1978-03-22
CA1030648A (en) 1978-05-02
DE2506988A1 (de) 1975-08-21
FR2261675B1 (en:Method) 1977-07-08
FR2261675A1 (en:Method) 1975-09-12
DK60575A (en:Method) 1975-10-20
US3980838A (en) 1976-09-14

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Legal Events

Date Code Title Description
8235 Patent refused