GB1384418A - Capacitor microphones - Google Patents

Capacitor microphones

Info

Publication number
GB1384418A
GB1384418A GB4005772A GB4005772A GB1384418A GB 1384418 A GB1384418 A GB 1384418A GB 4005772 A GB4005772 A GB 4005772A GB 4005772 A GB4005772 A GB 4005772A GB 1384418 A GB1384418 A GB 1384418A
Authority
GB
United Kingdom
Prior art keywords
lead
rear electrode
microphone
lead members
support
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
GB4005772A
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of GB1384418A publication Critical patent/GB1384418A/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
    • H04R19/016—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)
  • Details Of Audible-Bandwidth Transducers (AREA)
GB4005772A 1971-08-31 1972-08-29 Capacitor microphones Expired GB1384418A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1971078484U JPS5221046Y2 (enExample) 1971-08-31 1971-08-31

Publications (1)

Publication Number Publication Date
GB1384418A true GB1384418A (en) 1975-02-19

Family

ID=13663251

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4005772A Expired GB1384418A (en) 1971-08-31 1972-08-29 Capacitor microphones

Country Status (8)

Country Link
US (1) US3775572A (enExample)
JP (1) JPS5221046Y2 (enExample)
CA (1) CA946508A (enExample)
DE (1) DE2242806C2 (enExample)
FR (1) FR2151061B1 (enExample)
GB (1) GB1384418A (enExample)
IT (1) IT968373B (enExample)
NL (1) NL177879C (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5618080Y2 (enExample) * 1974-09-14 1981-04-27
JPS5411857Y2 (enExample) * 1975-11-14 1979-05-26
US4321432A (en) * 1978-12-23 1982-03-23 Tokyo Shibaura Denki Kabushiki Kaisha Electrostatic microphone
SE428081B (sv) * 1981-10-07 1983-05-30 Ericsson Telefon Ab L M Tilledningsram for en elektretmikrofon
US4492825A (en) * 1982-07-28 1985-01-08 At&T Bell Laboratories Electroacoustic transducer
DE3415088C1 (de) * 1984-04-21 1985-09-12 Eugen Beyer, Elektrotechnische Fabrik GmbH & Co, 7100 Heilbronn Kondensatormikrofon
US4767973A (en) * 1987-07-06 1988-08-30 Sarcos Incorporated Systems and methods for sensing position and movement
US5854846A (en) * 1996-09-06 1998-12-29 Northrop Grumman Corporation Wafer fabricated electroacoustic transducer
DE19742249C2 (de) * 1997-09-25 1999-08-05 Georg Neumann Gmbh Berlin Mikrophon
WO2000062580A1 (en) * 1999-04-12 2000-10-19 Knowles Electronics, Llc Package for micromachined silicon condenser microphone
CN1202693C (zh) * 2000-04-26 2005-05-18 三菱电机株式会社 半导体驻极体电容器麦克风
KR100331600B1 (ko) * 2000-05-22 2002-04-06 김낙현 콘덴서 마이크로폰의 제조방법
US7136496B2 (en) * 2001-04-18 2006-11-14 Sonion Nederland B.V. Electret assembly for a microphone having a backplate with improved charge stability
US6937735B2 (en) * 2001-04-18 2005-08-30 SonionMicrotronic Néderland B.V. Microphone for a listening device having a reduced humidity coefficient
US7062058B2 (en) * 2001-04-18 2006-06-13 Sonion Nederland B.V. Cylindrical microphone having an electret assembly in the end cover
US8280082B2 (en) * 2002-10-08 2012-10-02 Sonion Nederland B.V. Electret assembly for a microphone having a backplate with improved charge stability
KR101276353B1 (ko) * 2011-12-09 2013-06-24 주식회사 비에스이 다기능 마이크로폰 조립체 및 그 제조방법
CN203708424U (zh) * 2013-12-30 2014-07-09 瑞声声学科技(深圳)有限公司 麦克风

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3300585A (en) * 1963-09-04 1967-01-24 Northern Electric Co Self-polarized electrostatic microphone-semiconductor amplifier combination
DE1252258C2 (de) * 1965-04-13 1974-06-20 Nach dem elektrostatischen prinzip arbeitender elektroakustischer wandler und verfahren zu seiner herstellung
US3436492A (en) * 1966-01-17 1969-04-01 Northern Electric Co Field effect electroacoustic transducer
JPS5252581Y1 (enExample) * 1970-10-08 1977-11-30

Also Published As

Publication number Publication date
CA946508A (en) 1974-04-30
DE2242806C2 (de) 1982-07-08
DE2242806A1 (de) 1973-03-08
FR2151061B1 (enExample) 1977-01-14
NL177879B (nl) 1985-07-01
JPS5221046Y2 (enExample) 1977-05-14
FR2151061A1 (enExample) 1973-04-13
US3775572A (en) 1973-11-27
IT968373B (it) 1974-03-20
NL177879C (nl) 1985-12-02
JPS4835339U (enExample) 1973-04-27
NL7211755A (enExample) 1973-03-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years