DE69300380T2 - Elektret-Anordnung. - Google Patents

Elektret-Anordnung.

Info

Publication number
DE69300380T2
DE69300380T2 DE69300380T DE69300380T DE69300380T2 DE 69300380 T2 DE69300380 T2 DE 69300380T2 DE 69300380 T DE69300380 T DE 69300380T DE 69300380 T DE69300380 T DE 69300380T DE 69300380 T2 DE69300380 T2 DE 69300380T2
Authority
DE
Germany
Prior art keywords
electret
arrangement
electret arrangement
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
DE69300380T
Other languages
English (en)
Other versions
DE69300380D1 (de
Inventor
Elmer V Carlson
William James Ballad
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.)
Knowles Electronics LLC
Original Assignee
Knowles Electronics LLC
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 Knowles Electronics LLC filed Critical Knowles Electronics LLC
Publication of DE69300380D1 publication Critical patent/DE69300380D1/de
Application granted granted Critical
Publication of DE69300380T2 publication Critical patent/DE69300380T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/604—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
DE69300380T 1992-02-18 1993-02-17 Elektret-Anordnung. Expired - Fee Related DE69300380T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/836,606 US5335286A (en) 1992-02-18 1992-02-18 Electret assembly

Publications (2)

Publication Number Publication Date
DE69300380D1 DE69300380D1 (de) 1995-09-28
DE69300380T2 true DE69300380T2 (de) 1996-02-29

Family

ID=25272328

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69300380T Expired - Fee Related DE69300380T2 (de) 1992-02-18 1993-02-17 Elektret-Anordnung.

Country Status (3)

Country Link
US (1) US5335286A (de)
EP (1) EP0556792B1 (de)
DE (1) DE69300380T2 (de)

Families Citing this family (31)

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JPH07148128A (ja) * 1993-12-02 1995-06-13 Casio Comput Co Ltd 脈拍時間測定装置
US5570428A (en) * 1994-09-27 1996-10-29 Tibbetts Industries, Inc. Transducer assembly
US6031922A (en) * 1995-12-27 2000-02-29 Tibbetts Industries, Inc. Microphone systems of reduced in situ acceleration sensitivity
NL1004669C2 (nl) * 1996-12-02 1998-06-03 Microtronic Nederland Bv Transducer.
US7072476B2 (en) * 1997-02-18 2006-07-04 Matech, Inc. Audio headset
CA2315417A1 (en) * 1999-08-11 2001-02-11 Hiroshi Une Electret capacitor microphone
US6658134B1 (en) 1999-08-16 2003-12-02 Sonionmicrotronic Nederland B.V. Shock improvement for an electroacoustic transducer
US7043035B2 (en) * 1999-12-09 2006-05-09 Sonionmicrotronic Nederland B.V. Miniature microphone
AT411513B (de) * 2000-01-27 2004-01-26 Akg Acoustics Gmbh Elektroakustischer wandler
US6751326B2 (en) 2000-03-15 2004-06-15 Knowles Electronics, Llc Vibration-dampening receiver assembly
US7181035B2 (en) * 2000-11-22 2007-02-20 Sonion Nederland B.V. Acoustical receiver housing for hearing aids
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
US7136496B2 (en) * 2001-04-18 2006-11-14 Sonion Nederland B.V. Electret assembly for a microphone having a backplate with improved charge stability
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
US7072482B2 (en) 2002-09-06 2006-07-04 Sonion Nederland B.V. Microphone with improved sound inlet port
US8280082B2 (en) * 2002-10-08 2012-10-02 Sonion Nederland B.V. Electret assembly for a microphone having a backplate with improved charge stability
US7184563B2 (en) * 2003-03-04 2007-02-27 Knowles Electronics Llc. Electret condenser microphone
US7016262B2 (en) * 2003-09-11 2006-03-21 General Phosphorix, Llc Seismic sensor
US7035167B2 (en) * 2003-09-11 2006-04-25 General Phosphorix Seismic sensor
WO2005048572A2 (en) * 2003-11-11 2005-05-26 Matech, Inc. Two-way communications device having a single transducer
WO2005048574A1 (en) * 2003-11-11 2005-05-26 Matech, Inc. Automatic-switching wireless communication device
KR100544282B1 (ko) * 2004-02-24 2006-01-23 주식회사 비에스이 평행육면체형 콘덴서 마이크로폰
US7415121B2 (en) * 2004-10-29 2008-08-19 Sonion Nederland B.V. Microphone with internal damping
US8315379B2 (en) * 2004-11-10 2012-11-20 Matech, Inc. Single transducer full duplex talking circuit
US20100232257A1 (en) * 2006-09-28 2010-09-16 Hiroki Tanaka Ultrasonic probe and ultrasonic imaging device
CN101646118B (zh) * 2008-08-06 2013-04-24 财团法人工业技术研究院 可挠式致动器
TW201204062A (en) * 2010-07-15 2012-01-16 Taiwan Electrets Electronics Co Ltd Electrostatic speaker and manufacturing method thereof and conducting plate of the speaker
US9398389B2 (en) 2013-05-13 2016-07-19 Knowles Electronics, Llc Apparatus for securing components in an electret condenser microphone (ECM)
FR3027762B1 (fr) * 2014-10-27 2018-01-19 Universite Du Maine Transducteur electroacoustique, ensemble et systeme associes

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB571778A (en) * 1943-12-10 1945-09-07 Otto Kurt Kolb Improvements relating to condenser microphones
USRE28420E (en) * 1967-05-15 1975-05-13 Blbctret acoustic transducer
US3740496A (en) * 1971-11-08 1973-06-19 Industrial Research Prod Inc Diaphragm assembly for electret transducer
JPS4861126A (de) * 1971-12-02 1973-08-27
JPS5223333Y2 (de) * 1972-06-17 1977-05-27
US3778561A (en) * 1972-06-21 1973-12-11 Bell Canada Northern Electric Electret microphone
JPS5654711Y2 (de) * 1976-06-11 1981-12-19
JPS6017191B2 (ja) * 1977-12-30 1985-05-01 アイホン株式会社 風雑音減衰効果を有するマイクロンホンユニツト
JPS54161317A (en) * 1978-06-12 1979-12-20 Sony Corp Electrostatic type electroacoustic transducer
US4246449A (en) * 1979-04-24 1981-01-20 Polaroid Corporation Electrostatic transducer having optimum sensitivity and damping
US4331840A (en) * 1980-02-22 1982-05-25 Lectret S.A. Electret transducer with tapered acoustic chamber
JPS5714299A (en) * 1980-06-30 1982-01-25 Toshiba Corp Electret device
NL8004351A (nl) * 1980-07-30 1982-03-01 Philips Nv Elektreetomzetter.
US4418246A (en) * 1980-10-29 1983-11-29 Tibbetts Industries, Inc. Cell assembly for electret transducer
JPS5848600A (ja) * 1981-09-18 1983-03-22 Matsushita Electric Ind Co Ltd 静電型音響変換器
JPS5892199A (ja) * 1981-11-27 1983-06-01 Toshiba Corp 静電形音響変換器
JPS58205399A (ja) * 1982-05-25 1983-11-30 Sony Corp 張力付与方法
JPS58207798A (ja) * 1982-05-28 1983-12-03 Toshiba Corp トランスジユ−サ
JPS58207797A (ja) * 1982-05-28 1983-12-03 Toshiba Corp トランスジユ−サ
JPS58209299A (ja) * 1982-05-29 1983-12-06 Toshiba Corp トランスジユ−サ
GB2122842B (en) * 1982-05-29 1985-08-29 Tokyo Shibaura Electric Co An electroacoustic transducer and a method of manufacturing an electroacoustic transducer
AT374326B (de) * 1982-07-22 1984-04-10 Akg Akustische Kino Geraete Elektrostatischer wandler, insbesondere kondensatormikrophon
US4492825A (en) * 1982-07-28 1985-01-08 At&T Bell Laboratories Electroacoustic transducer
US4558184A (en) * 1983-02-24 1985-12-10 At&T Bell Laboratories Integrated capacitive transducer
US4891843A (en) * 1983-02-24 1990-01-02 At&T Technologies, Inc. Electret microphone
DK155269C (da) * 1986-07-17 1989-07-24 Brueel & Kjaer As Trykgradientmikrofon
USRE33718E (en) * 1986-09-15 1991-10-15 Knowles Electronics, Inc. Acoustic transducer with improved electrode spacing
US4730283A (en) * 1986-09-15 1988-03-08 Industrial Research Products, Inc. Acoustic transducer with improved electrode spacing
JPH02149199A (ja) * 1988-11-30 1990-06-07 Matsushita Electric Ind Co Ltd エレクトレットコンデンサマイクロホン

Also Published As

Publication number Publication date
EP0556792B1 (de) 1995-08-23
DE69300380D1 (de) 1995-09-28
US5335286A (en) 1994-08-02
EP0556792A1 (de) 1993-08-25

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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
8327 Change in the person/name/address of the patent owner

Owner name: KNOWLES ELECTRONICS, LLC, ITASCA, ILL., US