CA2060542A1 - Electret capacitor microphone - Google Patents

Electret capacitor microphone

Info

Publication number
CA2060542A1
CA2060542A1 CA 2060542 CA2060542A CA2060542A1 CA 2060542 A1 CA2060542 A1 CA 2060542A1 CA 2060542 CA2060542 CA 2060542 CA 2060542 A CA2060542 A CA 2060542A CA 2060542 A1 CA2060542 A1 CA 2060542A1
Authority
CA
Canada
Prior art keywords
ecm
assembly
capacitor microphone
electret capacitor
block
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.)
Granted
Application number
CA 2060542
Other languages
French (fr)
Other versions
CA2060542C (en
Inventor
Hiroyuki Baba
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.)
Panasonic Holdings Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2060542A1 publication Critical patent/CA2060542A1/en
Application granted granted Critical
Publication of CA2060542C publication Critical patent/CA2060542C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Telephone Set Structure (AREA)

Abstract

An electret capacitor microphone (ECM) can be assembled by an automatic assembly machine, and has an excellent thermal resistance against the influence of heat during the assembly. The ECM includes a cylindrical metal gate ring which is to be subjected to a caulking force, instead of an insulator made of a resin having a lower thermal resistance. The ECM has an amplifier block consisting of a first assembly sub-block having a back-plate and the metal gate ring, and a second assembly sub-block having an FET and a printed circuit board so as to be assembled by an automatic assembly machine.
CA 2060542 1991-02-12 1992-02-03 Electret capacitor microphone Expired - Lifetime CA2060542C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1860791A JPH04257200A (en) 1991-02-12 1991-02-12 Electret capacitor microphone
JP03-018607 1991-02-12

Publications (2)

Publication Number Publication Date
CA2060542A1 true CA2060542A1 (en) 1992-08-13
CA2060542C CA2060542C (en) 1998-12-01

Family

ID=11976331

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2060542 Expired - Lifetime CA2060542C (en) 1991-02-12 1992-02-03 Electret capacitor microphone

Country Status (4)

Country Link
EP (1) EP0499237B1 (en)
JP (1) JPH04257200A (en)
CA (1) CA2060542C (en)
DE (1) DE69202352T2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1002880C2 (en) * 1996-04-16 1997-10-17 Microtronic Nederland Bv Electroacoustic transducer.
US6549632B1 (en) * 1996-11-08 2003-04-15 Kabushiki Kaisha Audio-Technica Microphone
JP2002223498A (en) * 2000-11-21 2002-08-09 Matsushita Electric Ind Co Ltd Electret condenser microphone
KR100349200B1 (en) * 2000-12-12 2002-08-21 주식회사 씨에스티 Ultra-thin type condenser microphone assembly and method for assembling the same
JP4145505B2 (en) 2001-05-10 2008-09-03 松下電器産業株式会社 Electret condenser microphone and manufacturing method thereof
US7065224B2 (en) * 2001-09-28 2006-06-20 Sonionmicrotronic Nederland B.V. Microphone for a hearing aid or listening device with improved internal damping and foreign material protection
US7239714B2 (en) 2001-10-09 2007-07-03 Sonion Nederland B.V. Microphone having a flexible printed circuit board for mounting components
AU2002333131A1 (en) 2001-10-23 2003-05-06 David W. Schindel Ultrasonic printed circuit board transducer
JP3908059B2 (en) * 2002-02-27 2007-04-25 スター精密株式会社 Electret condenser microphone
KR200330089Y1 (en) * 2003-07-29 2003-10-11 주식회사 비에스이 Integrated base and electret condenser microphone using the same
KR100549189B1 (en) * 2003-07-29 2006-02-10 주식회사 비에스이 SMD possible electret condenser microphone
KR100675026B1 (en) * 2003-11-05 2007-01-29 주식회사 비에스이 Method of mounting a condenser microphone on main PCB
US7415121B2 (en) * 2004-10-29 2008-08-19 Sonion Nederland B.V. Microphone with internal damping
KR100675505B1 (en) 2005-04-29 2007-01-30 주식회사 비에스이 Case for condenser microphone
JP4809912B2 (en) * 2009-07-03 2011-11-09 ホシデン株式会社 Condenser microphone
CN109640241A (en) * 2019-01-21 2019-04-16 深圳市广慧宏科技有限公司 A kind of full-automatic package system of electret microphone

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE440581B (en) * 1983-12-22 1985-08-05 Ericsson Telefon Ab L M PROCEDURE FOR MANUFACTURING ELECTROACUSTIC CONVERTERS WITH CLOSED RESONANCE SPACE, PREFERRED MICROPHONES, AND ELECTROACUSTIC CONVERTERS MANUFACTURED
JPS627300A (en) * 1985-07-03 1987-01-14 Matsushita Electric Ind Co Ltd Electret capacitor microphone
JPH02149199A (en) * 1988-11-30 1990-06-07 Matsushita Electric Ind Co Ltd Electlet condenser microphone

Also Published As

Publication number Publication date
EP0499237A3 (en) 1993-10-20
DE69202352D1 (en) 1995-06-14
CA2060542C (en) 1998-12-01
EP0499237B1 (en) 1995-05-10
JPH04257200A (en) 1992-09-11
EP0499237A2 (en) 1992-08-19
DE69202352T2 (en) 1996-01-18

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry