DE69022111D1 - Verfahren zur Herstellung eines variablen Kondensator- mikrophons. - Google Patents

Verfahren zur Herstellung eines variablen Kondensator- mikrophons.

Info

Publication number
DE69022111D1
DE69022111D1 DE69022111T DE69022111T DE69022111D1 DE 69022111 D1 DE69022111 D1 DE 69022111D1 DE 69022111 T DE69022111 T DE 69022111T DE 69022111 T DE69022111 T DE 69022111T DE 69022111 D1 DE69022111 D1 DE 69022111D1
Authority
DE
Germany
Prior art keywords
production
condenser microphone
variable condenser
variable
microphone
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 - Fee Related
Application number
DE69022111T
Other languages
English (en)
Other versions
DE69022111T2 (de
Inventor
Paul L Cote
Robert A Sallavanti
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.)
Gentex Corp
Original Assignee
Gentex Corp
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 Gentex Corp filed Critical Gentex Corp
Publication of DE69022111D1 publication Critical patent/DE69022111D1/de
Application granted granted Critical
Publication of DE69022111T2 publication Critical patent/DE69022111T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
    • H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
DE69022111T 1989-05-19 1990-03-09 Verfahren zur Herstellung eines variablen Kondensator- mikrophons. Expired - Fee Related DE69022111T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35489389A 1989-05-19 1989-05-19

Publications (2)

Publication Number Publication Date
DE69022111D1 true DE69022111D1 (de) 1995-10-12
DE69022111T2 DE69022111T2 (de) 1996-03-14

Family

ID=23395347

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69022111T Expired - Fee Related DE69022111T2 (de) 1989-05-19 1990-03-09 Verfahren zur Herstellung eines variablen Kondensator- mikrophons.

Country Status (5)

Country Link
EP (1) EP0397975B1 (de)
JP (1) JPH0722440B2 (de)
KR (1) KR970004122B1 (de)
CA (1) CA2017185C (de)
DE (1) DE69022111T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0982178A (ja) * 1995-09-07 1997-03-28 Daiichi Denso Buhin Kk レバースイッチ
JPH0992088A (ja) * 1995-09-27 1997-04-04 Daiichi Denso Buhin Kk レバースイッチ
WO2000027166A2 (en) * 1998-11-02 2000-05-11 Sarnoff Corporation Transducer concepts for hearing aids and other devices
AT409695B (de) * 2001-05-18 2002-10-25 Akg Acoustics Gmbh Elektrostatisches mikrofon
KR20060058302A (ko) * 2004-11-25 2006-05-30 주식회사 씨에스티 마이크로폰 조립체
DE102008013395B4 (de) * 2008-03-10 2013-10-10 Sennheiser Electronic Gmbh & Co. Kg Kondensatormikrofon
JP5459653B2 (ja) * 2009-05-15 2014-04-02 日本放送協会 音響校正装置
JP5495363B2 (ja) * 2009-05-15 2014-05-21 日本放送協会 エレクトレットコンデンサの製造方法及びその製造装置
JP5283185B2 (ja) * 2009-05-15 2013-09-04 日本放送協会 エレクトレットの製造方法及びその製造装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1590472A (en) * 1976-08-31 1981-06-03 Nat Res Dev Polymeric materials
JPS61219299A (ja) * 1985-03-26 1986-09-29 Matsushita Electric Ind Co Ltd エレクトレツトコンデンサマイクロホン
JPH0748450B2 (ja) * 1987-03-05 1995-05-24 松下電器産業株式会社 エレクトレツト材

Also Published As

Publication number Publication date
JPH0722440B2 (ja) 1995-03-08
CA2017185C (en) 1993-09-21
EP0397975A3 (de) 1992-09-02
EP0397975A2 (de) 1990-11-22
JPH036500A (ja) 1991-01-11
KR900019076A (ko) 1990-12-24
EP0397975B1 (de) 1995-09-06
DE69022111T2 (de) 1996-03-14
KR970004122B1 (ko) 1997-03-25
CA2017185A1 (en) 1990-11-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee