JPS5221364B2 - - Google Patents

Info

Publication number
JPS5221364B2
JPS5221364B2 JP46087854A JP8785471A JPS5221364B2 JP S5221364 B2 JPS5221364 B2 JP S5221364B2 JP 46087854 A JP46087854 A JP 46087854A JP 8785471 A JP8785471 A JP 8785471A JP S5221364 B2 JPS5221364 B2 JP S5221364B2
Authority
JP
Japan
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
JP46087854A
Other languages
Japanese (ja)
Other versions
JPS4853713A (en
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 filed Critical
Priority to JP46087854A priority Critical patent/JPS5221364B2/ja
Priority to CA155,743A priority patent/CA989972A/en
Priority to DE19722253721 priority patent/DE2253721C3/en
Priority to GB5063772A priority patent/GB1405789A/en
Priority to NL7214888A priority patent/NL7214888A/xx
Priority to US303894A priority patent/US3894198A/en
Priority to FR7239244A priority patent/FR2158571B1/fr
Publication of JPS4853713A publication Critical patent/JPS4853713A/ja
Publication of JPS5221364B2 publication Critical patent/JPS5221364B2/ja
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
    • H04R19/013—Electrostatic transducers characterised by the use of electrets for loudspeakers
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S310/00—Electrical generator or motor structure
    • Y10S310/80—Piezoelectric polymers, e.g. PVDF
JP46087854A 1971-11-04 1971-11-04 Expired JPS5221364B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP46087854A JPS5221364B2 (en) 1971-11-04 1971-11-04
CA155,743A CA989972A (en) 1971-11-04 1972-10-31 Electroacoustic transducer
DE19722253721 DE2253721C3 (en) 1971-11-04 1972-11-02 Electrostatic electro-acoustic converter
GB5063772A GB1405789A (en) 1971-11-04 1972-11-02 Electroacoustic transducer
NL7214888A NL7214888A (en) 1971-11-04 1972-11-03
US303894A US3894198A (en) 1971-11-04 1972-11-06 Electrostatic-piezoelectric transducer
FR7239244A FR2158571B1 (en) 1971-11-04 1972-11-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46087854A JPS5221364B2 (en) 1971-11-04 1971-11-04

Publications (2)

Publication Number Publication Date
JPS4853713A JPS4853713A (en) 1973-07-28
JPS5221364B2 true JPS5221364B2 (en) 1977-06-10

Family

ID=13926458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP46087854A Expired JPS5221364B2 (en) 1971-11-04 1971-11-04

Country Status (6)

Country Link
US (1) US3894198A (en)
JP (1) JPS5221364B2 (en)
CA (1) CA989972A (en)
FR (1) FR2158571B1 (en)
GB (1) GB1405789A (en)
NL (1) NL7214888A (en)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199430A5 (en) * 1972-09-08 1974-04-05 Anvar
JPS50117412A (en) * 1974-02-18 1975-09-13
JPS5745760Y2 (en) * 1974-02-18 1982-10-08
US3980838A (en) * 1974-02-20 1976-09-14 Tokyo Shibaura Electric Co., Ltd. Plural electret electroacoustic transducer
JPS5215972B2 (en) * 1974-02-28 1977-05-06
US3970862A (en) * 1974-06-25 1976-07-20 The United States Of America As Represented By The Secretary Of The Navy Polymeric sensor of vibration and dynamic pressure
JPS51101927U (en) * 1975-02-14 1976-08-16
JPS5215319A (en) * 1975-07-25 1977-02-04 Matsushita Electric Ind Co Ltd Electric sound convertor
GB1520118A (en) * 1975-08-11 1978-08-02 Rank Organisation Ltd Transducers
US4146800A (en) * 1975-10-08 1979-03-27 Gregory Stephen E Apparatus and method of generating electricity from wind energy
US4170185A (en) * 1978-01-09 1979-10-09 Lectret S.A. Preventing marine fouling
US4207442A (en) * 1978-05-15 1980-06-10 Freeman Miller L Driver circuit for electrostatic transducers
JPS5512508A (en) * 1978-07-10 1980-01-29 Kureha Chem Ind Co Ltd Information recording sheet
US4331840A (en) * 1980-02-22 1982-05-25 Lectret S.A. Electret transducer with tapered acoustic chamber
GB2079054B (en) * 1980-06-30 1984-02-22 Tokyo Shibaura Electric Co Electret device
US4440027A (en) * 1982-05-26 1984-04-03 Ford Motor Company Velocity and mass air flow sensor
DE3437488A1 (en) * 1984-10-12 1986-04-17 Richard Wolf Gmbh, 7134 Knittlingen SOUND TRANSMITTER
US4868447A (en) * 1987-09-11 1989-09-19 Cornell Research Foundation, Inc. Piezoelectric polymer laminates for torsional and bending modal control
US4985926A (en) * 1988-02-29 1991-01-15 Motorola, Inc. High impedance piezoelectric transducer
US5558298A (en) * 1994-12-05 1996-09-24 General Electric Company Active noise control of aircraft engine discrete tonal noise
US5949892A (en) * 1995-12-07 1999-09-07 Advanced Micro Devices, Inc. Method of and apparatus for dynamically controlling operating characteristics of a microphone
US6140740A (en) * 1997-12-30 2000-10-31 Remon Medical Technologies, Ltd. Piezoelectric transducer
US20030036746A1 (en) 2001-08-16 2003-02-20 Avi Penner Devices for intrabody delivery of molecules and systems and methods utilizing same
US6760455B2 (en) * 2000-07-13 2004-07-06 American Technology Corporation Electrostatic loudspeaker with a distributed filter
AT410498B (en) * 2001-02-20 2003-05-26 Akg Acoustics Gmbh ELECTROACOUSTIC CAPSULE
US6978032B2 (en) * 2001-11-29 2005-12-20 Matsushita Electric Industrial Co., Ltd. Piezoelectric speaker
GB0204572D0 (en) * 2002-02-27 2002-04-10 Univ Warwick Non contacting air-coupled ultrasonic inspection system for food and drinks
US7580750B2 (en) * 2004-11-24 2009-08-25 Remon Medical Technologies, Ltd. Implantable medical device with integrated acoustic transducer
US7522962B1 (en) 2004-12-03 2009-04-21 Remon Medical Technologies, Ltd Implantable medical device with integrated acoustic transducer
CN101213631B (en) * 2005-05-02 2012-03-28 爱普科斯公司 Capacitive rf-mems device and its manufacture method
US20080212807A1 (en) * 2005-06-08 2008-09-04 General Mems Corporation Micromachined Acoustic Transducers
US7615012B2 (en) * 2005-08-26 2009-11-10 Cardiac Pacemakers, Inc. Broadband acoustic sensor for an implantable medical device
US7570998B2 (en) * 2005-08-26 2009-08-04 Cardiac Pacemakers, Inc. Acoustic communication transducer in implantable medical device header
JP2008042869A (en) * 2005-10-05 2008-02-21 Seiko Epson Corp Electrostatic ultrasonic transducer, ultrasonic speaker, sound signal reproducing method, ultra-directional acoustic system, and display device
US7912548B2 (en) * 2006-07-21 2011-03-22 Cardiac Pacemakers, Inc. Resonant structures for implantable devices
US7949396B2 (en) 2006-07-21 2011-05-24 Cardiac Pacemakers, Inc. Ultrasonic transducer for a metallic cavity implated medical device
US8825161B1 (en) 2007-05-17 2014-09-02 Cardiac Pacemakers, Inc. Acoustic transducer for an implantable medical device
EP2162185B1 (en) * 2007-06-14 2015-07-01 Cardiac Pacemakers, Inc. Multi-element acoustic recharging system
TWI343756B (en) * 2009-08-10 2011-06-11 Ind Tech Res Inst Flat loudspeaker structure
US20100103115A1 (en) * 2008-10-24 2010-04-29 Sony Ericsson Mobile Communications Ab Display arrangement and electronic device
CN101754078A (en) * 2008-12-12 2010-06-23 志丰电子股份有限公司 Electret back-electrode double diaphragm electroacoustic actuator and manufacturing method thereof
WO2011121985A1 (en) * 2010-03-29 2011-10-06 パナソニック株式会社 Piezoelectric sound converter
JP5195895B2 (en) * 2010-12-27 2013-05-15 株式会社村田製作所 Piezoelectric sounding parts
CN102651836A (en) * 2011-02-28 2012-08-29 千如电机工业股份有限公司 Audio signal driver for flat-plate electroacoustic actuator
EP2512029A1 (en) * 2011-04-11 2012-10-17 ABC Taiwan Electronics Corp. Audio signal driver for flat sound generator
DE102012221833A1 (en) * 2012-11-29 2014-06-05 Robert Bosch Gmbh Transducer with at least one electrode of a first type, an electrode of a second type and at least one ferroelectret
JP6278619B2 (en) * 2013-06-14 2018-02-14 古河電気工業株式会社 Vibration generator
DE102013222231A1 (en) 2013-10-31 2015-04-30 Sennheiser Electronic Gmbh & Co. Kg receiver
KR20160068059A (en) * 2014-12-04 2016-06-15 삼성디스플레이 주식회사 Piezoelectric element comprising mesoporous piezoelectric thin film
US10120449B2 (en) * 2015-08-25 2018-11-06 Immersion Corporation Parallel plate actuator
KR101703608B1 (en) * 2015-08-28 2017-02-07 현대자동차 주식회사 Detachable microphone and method of manufacturing the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE524082C (en) * 1928-09-07 1931-05-01 Siemens & Halske Akt Ges Loudspeaker with several electrical drive systems working according to different principles
US2478223A (en) * 1946-03-01 1949-08-09 Clarkstan Corp Electrostrictive translator
JPS4815867B1 (en) * 1969-08-28 1973-05-17
US3646413A (en) * 1970-09-25 1972-02-29 Avco Corp Piezoelectric-driven variable capacitor

Also Published As

Publication number Publication date
FR2158571A1 (en) 1973-06-15
US3894198A (en) 1975-07-08
NL7214888A (en) 1973-05-08
DE2253721A1 (en) 1973-05-24
GB1405789A (en) 1975-09-10
JPS4853713A (en) 1973-07-28
CA989972A (en) 1976-05-25
DE2253721B2 (en) 1976-02-12
FR2158571B1 (en) 1978-11-03

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