JPS55120300A - Two-way electrostatic microphone - Google Patents

Two-way electrostatic microphone

Info

Publication number
JPS55120300A
JPS55120300A JP2710979A JP2710979A JPS55120300A JP S55120300 A JPS55120300 A JP S55120300A JP 2710979 A JP2710979 A JP 2710979A JP 2710979 A JP2710979 A JP 2710979A JP S55120300 A JPS55120300 A JP S55120300A
Authority
JP
Japan
Prior art keywords
diaphragm
electret
diaphragms
conversion part
back pole
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
JP2710979A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6150560B2 (en, 2012
Inventor
Tsutomu Imai
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
Priority to JP2710979A priority Critical patent/JPS55120300A/ja
Priority to US06/126,380 priority patent/US4329547A/en
Priority to NL8001332A priority patent/NL8001332A/nl
Priority to GB8007712A priority patent/GB2044583B/en
Priority to DE19803008638 priority patent/DE3008638A1/de
Priority to FR8005235A priority patent/FR2451119A1/fr
Priority to CA347,263A priority patent/CA1128644A/en
Publication of JPS55120300A publication Critical patent/JPS55120300A/ja
Publication of JPS6150560B2 publication Critical patent/JPS6150560B2/ja
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)
JP2710979A 1979-03-08 1979-03-08 Two-way electrostatic microphone Granted JPS55120300A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2710979A JPS55120300A (en) 1979-03-08 1979-03-08 Two-way electrostatic microphone
US06/126,380 US4329547A (en) 1979-03-08 1980-03-03 Dual section electret microphone
NL8001332A NL8001332A (nl) 1979-03-08 1980-03-05 Condensatormicrofoon.
GB8007712A GB2044583B (en) 1979-03-08 1980-03-06 Capacitor microphones
DE19803008638 DE3008638A1 (de) 1979-03-08 1980-03-06 Kondensatormikrophon
FR8005235A FR2451119A1 (fr) 1979-03-08 1980-03-07 Microphone capacitif
CA347,263A CA1128644A (en) 1979-03-08 1980-03-07 Capacitor microphone

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
JPS55120300A true JPS55120300A (en) 1980-09-16
JPS6150560B2 JPS6150560B2 (en, 2012) 1986-11-05

Family

ID=12211904

Family Applications (1)

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

Country Status (7)

Country Link
US (1) US4329547A (en, 2012)
JP (1) JPS55120300A (en, 2012)
CA (1) CA1128644A (en, 2012)
DE (1) DE3008638A1 (en, 2012)
FR (1) FR2451119A1 (en, 2012)
GB (1) GB2044583B (en, 2012)
NL (1) NL8001332A (en, 2012)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006304048A (ja) * 2005-04-22 2006-11-02 Sony Corp マイクロホン
JP2008533880A (ja) * 2005-03-16 2008-08-21 コクス，ジェイムズ マイクロフォンアレイおよびデジタル信号処理システム
JP2010103637A (ja) * 2008-10-21 2010-05-06 Audio Technica Corp 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
WO2011052088A1 (ja) * 2009-11-02 2011-05-05 三菱電機株式会社 騒音制御システム、並びに、それを搭載したファン構造体及び空気調和機の室外機

Families Citing this family (20)

* 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
AU2001240323B2 (en) * 2000-03-07 2005-07-28 Hearworks Pty Ltd A layered microphone structure
US20030118203A1 (en) * 2000-03-07 2003-06-26 George Raicevich Layered microphone structure
US7035167B2 (en) * 2003-09-11 2006-04-25 General Phosphorix Seismic sensor
US7016262B2 (en) * 2003-09-11 2006-03-21 General Phosphorix, Llc Seismic sensor
US20060082158A1 (en) * 2004-10-15 2006-04-20 Schrader Jeffrey L Method and device for supplying power from acoustic energy
US20070253570A1 (en) * 2004-12-07 2007-11-01 Ntt Docomo, Inc. Microphone System
WO2006122010A1 (en) * 2005-05-09 2006-11-16 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
WO2009067616A1 (en) * 2007-11-20 2009-05-28 Otologics, Llc Implantable electret microphone
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
US9060229B2 (en) 2010-03-30 2015-06-16 Cochlear Limited Low noise electret microphone
EP2432249A1 (en) 2010-07-02 2012-03-21 Knowles Electronics Asia PTE. Ltd. Microphone
ES2712724T3 (es) 2011-03-30 2019-05-14 Kaetel Systems Gmbh Caja de altavoces
DE112012005578B4 (de) * 2012-01-05 2019-11-07 Tdk Corporation Differenzielles Mikrofon und Verfahren zum Ansteuern eines differenziellen Mikrofons
US9179221B2 (en) * 2013-07-18 2015-11-03 Infineon Technologies Ag MEMS devices, interface circuits, and methods of making thereof
EP3803554A4 (en) 2018-05-24 2022-06-08 The Research Foundation for The State University of New York Capacitive sensor
US11558695B2 (en) 2020-03-31 2023-01-17 Shure Acquisition Holdings, Inc. Condenser microphone pattern adjustment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE28420E (en) 1967-05-15 1975-05-13 Blbctret acoustic transducer
DE2155026C3 (de) * 1971-11-05 1974-05-30 Sennheiser Electronic Dr.-Ing. Fritz Sennheiser, 3002 Wennebostel Schaltungsanordnung zur Schaltung eines Niederfrequenzkondensatormikrofons
US3980838A (en) * 1974-02-20 1976-09-14 Tokyo Shibaura Electric Co., Ltd. Plural electret electroacoustic transducer
CA1025994A (en) * 1975-07-08 1978-02-07 Uniroyal Ltd. Electromechanical transducer
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
DE2738978A1 (de) * 1977-08-30 1979-03-15 Neumann Gmbh Georg Schaltungsanordnungen fuer elektret- kondensator-mikrophone

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008533880A (ja) * 2005-03-16 2008-08-21 コクス，ジェイムズ マイクロフォンアレイおよびデジタル信号処理システム
JP2006304048A (ja) * 2005-04-22 2006-11-02 Sony Corp マイクロホン
US7903829B2 (en) 2005-04-22 2011-03-08 Sony Corporation Microphone
JP2010103637A (ja) * 2008-10-21 2010-05-06 Audio Technica Corp 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
WO2011052088A1 (ja) * 2009-11-02 2011-05-05 三菱電機株式会社 騒音制御システム、並びに、それを搭載したファン構造体及び空気調和機の室外機
JP5570522B2 (ja) * 2009-11-02 2014-08-13 三菱電機株式会社 空気調和機の室外機
US9163853B2 (en) 2009-11-02 2015-10-20 Mitsubishi Electric Corporation Noise control system, and fan structure and outdoor unit of air-conditioning-apparatus each equipped therewith

Also Published As

Publication number Publication date
FR2451119A1 (fr) 1980-10-03
GB2044583A (en) 1980-10-15
CA1128644A (en) 1982-07-27
JPS6150560B2 (en, 2012) 1986-11-05
NL8001332A (nl) 1980-09-10
DE3008638A1 (de) 1980-09-11
GB2044583B (en) 1983-04-20
FR2451119B1 (en, 2012) 1984-05-18
US4329547A (en) 1982-05-11

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