DE3364454D1 - Electroacoustic transducer - Google Patents

Electroacoustic transducer

Info

Publication number
DE3364454D1
DE3364454D1 DE8383900691T DE3364454T DE3364454D1 DE 3364454 D1 DE3364454 D1 DE 3364454D1 DE 8383900691 T DE8383900691 T DE 8383900691T DE 3364454 T DE3364454 T DE 3364454T DE 3364454 D1 DE3364454 D1 DE 3364454D1
Authority
DE
Germany
Prior art keywords
electroacoustic transducer
electroacoustic
transducer
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
DE8383900691T
Other languages
English (en)
Inventor
Alex Brzezinski
Harold Hershey
Stephen Whitesell
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of DE3364454D1 publication Critical patent/DE3364454D1/de
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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/42—Piezoelectric device making
DE8383900691T 1982-07-28 1983-01-26 Electroacoustic transducer Expired DE3364454D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/402,613 US4492825A (en) 1982-07-28 1982-07-28 Electroacoustic transducer
PCT/US1983/000119 WO1984000662A1 (en) 1982-07-28 1983-01-26 Electroacoustic transducer

Publications (1)

Publication Number Publication Date
DE3364454D1 true DE3364454D1 (en) 1986-08-21

Family

ID=23592631

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383900691T Expired DE3364454D1 (en) 1982-07-28 1983-01-26 Electroacoustic transducer

Country Status (7)

Country Link
US (1) US4492825A (de)
EP (1) EP0115485B1 (de)
JP (1) JPS59501338A (de)
BR (1) BR8307454A (de)
CA (1) CA1199396A (de)
DE (1) DE3364454D1 (de)
WO (1) WO1984000662A1 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE428081B (sv) * 1981-10-07 1983-05-30 Ericsson Telefon Ab L M Tilledningsram for en elektretmikrofon
US4891843A (en) * 1983-02-24 1990-01-02 At&T Technologies, Inc. Electret microphone
US4701640A (en) * 1985-03-11 1987-10-20 Telex Communications, Inc. Electret transducer and method of fabrication
US4850227A (en) * 1987-12-22 1989-07-25 Delco Electronics Corporation Pressure sensor and method of fabrication thereof
US5168527A (en) * 1990-06-14 1992-12-01 Lzr Electronics, Inc. Miniature speaker variable standoff mount
NL9101563A (nl) * 1991-09-17 1993-04-16 Microtel Bv Elektroacoustische transducent van het elektreet type.
US5335286A (en) * 1992-02-18 1994-08-02 Knowles Electronics, Inc. Electret assembly
JP2000050387A (ja) * 1998-07-16 2000-02-18 Massachusetts Inst Of Technol <Mit> パラメトリックオ―ディオシステム
US6775388B1 (en) * 1998-07-16 2004-08-10 Massachusetts Institute Of Technology Ultrasonic transducers
EP1183906A4 (de) * 1999-04-12 2008-01-23 Knowles Electronics Llc Verpackung für ein mikroverarbeitetes silikon-kondensatormikrofon
US6842964B1 (en) 2000-09-29 2005-01-18 Tucker Davis Technologies, Inc. Process of manufacturing of electrostatic speakers
DE10053681B4 (de) * 2000-10-28 2004-08-26 W.L. Gore & Associates Gmbh Gehäuse mit mindestens einem EMI abschirmender Kunststoffkörper bzw. Be- und Entlüftungselement und Verfahren zur Herstellung eines solchen Kunststoffkörpers
KR200218653Y1 (ko) * 2000-11-01 2001-04-02 주식회사비에스이 일렉트렛 콘덴서 마이크로폰
US7795695B2 (en) 2005-01-27 2010-09-14 Analog Devices, Inc. Integrated microphone
US20070071268A1 (en) * 2005-08-16 2007-03-29 Analog Devices, Inc. Packaged microphone with electrically coupled lid
US7885423B2 (en) * 2005-04-25 2011-02-08 Analog Devices, Inc. Support apparatus for microphone diaphragm
US7825484B2 (en) * 2005-04-25 2010-11-02 Analog Devices, Inc. Micromachined microphone and multisensor and method for producing same
US7449356B2 (en) * 2005-04-25 2008-11-11 Analog Devices, Inc. Process of forming a microphone using support member
US20070040231A1 (en) * 2005-08-16 2007-02-22 Harney Kieran P Partially etched leadframe packages having different top and bottom topologies
US7961897B2 (en) * 2005-08-23 2011-06-14 Analog Devices, Inc. Microphone with irregular diaphragm
US8477983B2 (en) * 2005-08-23 2013-07-02 Analog Devices, Inc. Multi-microphone system
US8344487B2 (en) * 2006-06-29 2013-01-01 Analog Devices, Inc. Stress mitigation in packaged microchips
US8270634B2 (en) * 2006-07-25 2012-09-18 Analog Devices, Inc. Multiple microphone system
WO2008067431A2 (en) * 2006-11-30 2008-06-05 Analog Devices, Inc. Microphone system with silicon microphone secured to package lid
WO2008134530A2 (en) 2007-04-25 2008-11-06 University Of Florida Research Foundation, Inc. A capacitive microphone with integrated cavity
US7694610B2 (en) * 2007-06-27 2010-04-13 Siemens Medical Solutions Usa, Inc. Photo-multiplier tube removal tool
JP4435841B2 (ja) * 2008-05-28 2010-03-24 パナソニック株式会社 電子機器
DE202010001371U1 (de) * 2010-01-25 2011-06-01 Baumer Innotec Ag Ultraschallsensor und Vorrichtung zu dessen Halterung
US9676614B2 (en) 2013-02-01 2017-06-13 Analog Devices, Inc. MEMS device with stress relief structures
US10167189B2 (en) 2014-09-30 2019-01-01 Analog Devices, Inc. Stress isolation platform for MEMS devices
US10131538B2 (en) 2015-09-14 2018-11-20 Analog Devices, Inc. Mechanically isolated MEMS device
US11417611B2 (en) 2020-02-25 2022-08-16 Analog Devices International Unlimited Company Devices and methods for reducing stress on circuit components

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221046Y2 (de) * 1971-08-31 1977-05-14
US3787642A (en) * 1971-09-27 1974-01-22 Gte Automatic Electric Lab Inc Electrostatic transducer having resilient electrode
JPS4861126A (de) * 1971-12-02 1973-08-27
US3816671A (en) * 1972-04-06 1974-06-11 Thermo Electron Corp Electret transducer cartridge and case
US3963881A (en) * 1973-05-29 1976-06-15 Thermo Electron Corporation Unidirectional condenser microphone
JPS5636233Y2 (de) * 1974-12-27 1981-08-26
US4046974A (en) * 1976-10-01 1977-09-06 Bell Telephone Laboratories, Incorporated Electroacoustic transducer with springs forming electrical interconnections as a result of assembly
CA1107382A (en) * 1978-11-03 1981-08-18 Beverley W. Gumb Electret microphone with simplified electrical connections by printed circuit board mounting
US4188513A (en) * 1978-11-03 1980-02-12 Northern Telecom Limited Electret microphone with simplified electrical connections by printed circuit board mounting
US4331840A (en) * 1980-02-22 1982-05-25 Lectret S.A. Electret transducer with tapered acoustic chamber
US4443666A (en) * 1980-11-24 1984-04-17 Gentex Corporation Electret microphone assembly

Also Published As

Publication number Publication date
BR8307454A (pt) 1984-07-17
JPS59501338A (ja) 1984-07-26
EP0115485B1 (de) 1986-07-16
EP0115485A1 (de) 1984-08-15
US4492825A (en) 1985-01-08
WO1984000662A1 (en) 1984-02-16
CA1199396A (en) 1986-01-14

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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