FR2451119A1 - Microphone capacitif - Google Patents

Microphone capacitif

Info

Publication number
FR2451119A1
FR2451119A1 FR8005235A FR8005235A FR2451119A1 FR 2451119 A1 FR2451119 A1 FR 2451119A1 FR 8005235 A FR8005235 A FR 8005235A FR 8005235 A FR8005235 A FR 8005235A FR 2451119 A1 FR2451119 A1 FR 2451119A1
Authority
FR
France
Prior art keywords
capacitive microphone
microphone
electret
transducer
capacitive
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
FR8005235A
Other languages
English (en)
Other versions
FR2451119B1 (fr
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 FR2451119A1 publication Critical patent/FR2451119A1/fr
Application granted granted Critical
Publication of FR2451119B1 publication Critical patent/FR2451119B1/fr
Granted 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
    • H04R19/04—Microphones
    • 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)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

A.MICROPHONE CAPACITIF. B.MICROPHONE CARACTERISE EN CE QUE LE DIAPHRAGME 2A DE LA PREMIERE PARTIE 1A COMPORTE UN ELECTRET, LA PLAQUE D'APPUI 3B DE LA SECONDE PARTIE DE TRANSDUCTEUR 1B COMPORTE UN ELECTRET 5, LES CONDUCTEURS DE SORTIE 8 RELIANT L'UN DES DEUX DIAPHRAGMES 2A, 2B DE LA PREMIERE ET DE LA SECONDE PARTIE 1A, 1B DE TRANSDUCTEUR, ET L'AUTRE LES DEUX PLAQUES D'APPUI 3A, 3B DE LA PREMIERE ET DE LA SECONDE PARTIE 1A, 1B POUR DERIVER LES SIGNAUX DE SORTIE.
FR8005235A 1979-03-08 1980-03-07 Microphone capacitif Granted FR2451119A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2710979A JPS55120300A (en) 1979-03-08 1979-03-08 Two-way electrostatic microphone

Publications (2)

Publication Number Publication Date
FR2451119A1 true FR2451119A1 (fr) 1980-10-03
FR2451119B1 FR2451119B1 (fr) 1984-05-18

Family

ID=12211904

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8005235A Granted FR2451119A1 (fr) 1979-03-08 1980-03-07 Microphone capacitif

Country Status (7)

Country Link
US (1) US4329547A (fr)
JP (1) JPS55120300A (fr)
CA (1) CA1128644A (fr)
DE (1) DE3008638A1 (fr)
FR (1) FR2451119A1 (fr)
GB (1) GB2044583B (fr)
NL (1) NL8001332A (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5251264A (en) * 1992-03-25 1993-10-05 Motorola, Inc. Mechanical-vibration-cancelling piezo ceramic microphone
AU4032301A (en) * 2000-03-07 2001-09-17 George Raicevich A layered microphone structure
DE10195878T1 (de) * 2000-03-07 2003-06-12 Hearworks Pty Ltd Doppelkondensatormikrophon
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
US20060082158A1 (en) * 2004-10-15 2006-04-20 Schrader Jeffrey L Method and device for supplying power from acoustic energy
CN101057523A (zh) * 2004-12-07 2007-10-17 株式会社Ntt都科摩 话筒装置
WO2006096959A1 (fr) * 2005-03-16 2006-09-21 James Cox Ensemble de microphones et systeme de traitement numerique des signaux
JP4403412B2 (ja) * 2005-04-22 2010-01-27 ソニー株式会社 マイクロホン
US7747032B2 (en) * 2005-05-09 2010-06-29 Knowles Electronics, Llc Conjoined receiver and microphone assembly
FI20055261A0 (fi) * 2005-05-27 2005-05-27 Midas Studios Avoin Yhtioe Akustisten muuttajien kokoonpano, järjestelmä ja menetelmä akustisten signaalien vastaanottamista tai toistamista varten
US7889882B2 (en) * 2006-12-20 2011-02-15 Leonard Marshall Selectable diaphragm condenser microphone
EP2220875A4 (fr) * 2007-11-20 2013-10-30 Cochlear Ltd Microphone à électret implantable
JP5237046B2 (ja) * 2008-10-21 2013-07-17 株式会社オーディオテクニカ 可変指向性マイクロホンユニットおよび可変指向性マイクロホン
US8855350B2 (en) * 2009-04-28 2014-10-07 Cochlear Limited Patterned implantable electret microphone
JP5541769B2 (ja) * 2009-09-15 2014-07-09 株式会社オーディオテクニカ ステレオマイクロホンユニット及びステレオマイクロホン
ES2814226T3 (es) 2009-11-02 2021-03-26 Mitsubishi Electric Corp Estructura de ventilador equipada con un sistema de control de ruido
EP2553944A4 (fr) 2010-03-30 2016-03-23 Cochlear Ltd Microphone à électret à faible bruit
EP2432249A1 (fr) * 2010-07-02 2012-03-21 Knowles Electronics Asia PTE. Ltd. Microphone
WO2012130986A1 (fr) 2011-03-30 2012-10-04 Kaetel Systems Gmbh Haut-parleur
JP5986221B2 (ja) * 2012-01-05 2016-09-06 エプコス アクチエンゲゼルシャフトＥｐｃｏｓ Ａｇ 差動マイクロフォンおよび差動マイクロフォンの駆動方法
US9179221B2 (en) * 2013-07-18 2015-11-03 Infineon Technologies Ag MEMS devices, interface circuits, and methods of making thereof
US11558695B2 (en) 2020-03-31 2023-01-17 Shure Acquisition Holdings, Inc. Condenser microphone pattern adjustment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2155026A1 (de) * 1971-11-05 1973-05-17 Sennheiser Electronic Niederfrequenzkondensator-mikrofon hoher linearitaet
US4041446A (en) * 1976-05-20 1977-08-09 The United States Of America As Represented By The Secretary Of The Navy Capacitive-type displacement and pressure sensitive transducer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980838A (en) * 1974-02-20 1976-09-14 Tokyo Shibaura Electric Co., Ltd. Plural electret electroacoustic transducer
CA1025994A (fr) * 1975-07-08 1978-02-07 Uniroyal Ltd. Transducteur electromecanique
DE2738978A1 (de) * 1977-08-30 1979-03-15 Neumann Gmbh Georg Schaltungsanordnungen fuer elektret- kondensator-mikrophone

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2155026A1 (de) * 1971-11-05 1973-05-17 Sennheiser Electronic Niederfrequenzkondensator-mikrofon hoher linearitaet
US4041446A (en) * 1976-05-20 1977-08-09 The United States Of America As Represented By The Secretary Of The Navy Capacitive-type displacement and pressure sensitive transducer

Also Published As

Publication number Publication date
JPS55120300A (en) 1980-09-16
US4329547A (en) 1982-05-11
FR2451119B1 (fr) 1984-05-18
NL8001332A (nl) 1980-09-10
CA1128644A (fr) 1982-07-27
GB2044583B (en) 1983-04-20
GB2044583A (en) 1980-10-15
JPS6150560B2 (fr) 1986-11-05
DE3008638A1 (de) 1980-09-11

Similar Documents

Publication Publication Date Title
FR2451119A1 (fr) Microphone capacitif
KR910007380A (ko) 전기 음향 변환기 및 음향 재생 시스템
DE69209416D1 (de) Verstärkerschaltung für Druckwandler
DE59102755D1 (de) Tinnitus-maskiergerät.
FR2668836B1 (fr) Transducteur acoustique de puits.
DE3852538D1 (de) Elektroakustischer Wandler.
GB2078464A (en) Variable thickness acoustic diaphragm voice coil arrangements for electroacoustic transducers
GB2031691B (en) Electroacoustic transducer diaphragms
DE69602204D1 (de) PANEELFöRMIGE MIKROFONE
FR2663182B1 (fr) Transducteur electro-acoustique immerge.
BR7903543A (pt) Sistema de audio com tom de sinos utilizando transdutor piezeletrico
IT1235164B (it) Trasduttore di pressione
ATE126389T1 (de) Differenzdruckmesswandler.
DE3377888D1 (en) Electro-acoustic transducer with diaphragm
DE59104242D1 (de) Elektrodynamischer Ultraschallwandler.
DE59009477D1 (de) Elektrodynamischer Ultraschallwandler.
DE69106411D1 (de) Piezoelektrischer Druckaufnehmer.
GB2257600B (en) Planar board diaphragm for electro-acoustic transducers
FR2415924A1 (fr) Circuit reducteur de bruit pour signaux stereo
IT1146062B (it) Trasduttore sonoro elettrodinamico in particolare per prove non di struttuve ad ultrasuoni su materiali
SE8206383D0 (sv) Elektroakustisk omvandlare
GB2096860B (en) Piezoelectric sound transducer
ES329256A1 (es) Un acoplador acustico aplicable a aparatos telefonicos.
WO1995022878A3 (fr) Micro a reduction du bruit de fond
NO153785C (no) Anordning for bestemmelse av mottagningstidspunktet for en akustisk impuls i en transduser.

Legal Events

Date Code Title Description
ST Notification of lapse