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EP1233648A3 - Electroacoustic transducer - Google Patents

Electroacoustic transducer Download PDF

Info

Publication number
EP1233648A3
EP1233648A3 EP01890336A EP01890336A EP1233648A3 EP 1233648 A3 EP1233648 A3 EP 1233648A3 EP 01890336 A EP01890336 A EP 01890336A EP 01890336 A EP01890336 A EP 01890336A EP 1233648 A3 EP1233648 A3 EP 1233648A3
Authority
EP
European Patent Office
Prior art keywords
microphone
electroacoustic transducer
electrode
another
operating
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
EP01890336A
Other languages
German (de)
French (fr)
Other versions
EP1233648B1 (en
EP1233648A2 (en
Inventor
Gino Dipl.-Ing. Pavlovic
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.)
AKG Acoustics GmbH
Original Assignee
AKG Acoustics GmbH
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 AKG Acoustics GmbH filed Critical AKG Acoustics GmbH
Priority to AT01890336T priority Critical patent/ATE413786T1/en
Publication of EP1233648A2 publication Critical patent/EP1233648A2/en
Publication of EP1233648A3 publication Critical patent/EP1233648A3/en
Application granted granted Critical
Publication of EP1233648B1 publication Critical patent/EP1233648B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Control Of Electric Motors In General (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Glass Compositions (AREA)

Abstract

An electrostatically operating electroacoustic transducer, operating as a sound receiver and configured to be mounted in a microphone capsule, has an electrode and a diaphragm connected to one another at a spacing from one another by a spacer ring, wherein on the electrode at least one first electric resistor is arranged which is connected to a power supply during operation of the microphone. The resistor is heated to prevent condensation of water vapor, and this improves the resistance of the microphone against ambient humidity.
EP01890336A 2001-02-14 2001-12-12 Electroacoustic transducer Expired - Lifetime EP1233648B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT01890336T ATE413786T1 (en) 2001-02-14 2001-12-12 ELECTROACOUSTIC TRANSDUCER

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2272001 2001-02-14
AT0022701A AT413922B (en) 2001-02-14 2001-02-14 ELECTRIC ACOUSTIC CONVERTER

Publications (3)

Publication Number Publication Date
EP1233648A2 EP1233648A2 (en) 2002-08-21
EP1233648A3 true EP1233648A3 (en) 2006-09-20
EP1233648B1 EP1233648B1 (en) 2008-11-05

Family

ID=3669899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01890336A Expired - Lifetime EP1233648B1 (en) 2001-02-14 2001-12-12 Electroacoustic transducer

Country Status (6)

Country Link
US (1) US6792123B2 (en)
EP (1) EP1233648B1 (en)
JP (1) JP4038051B2 (en)
CN (1) CN1248543C (en)
AT (2) AT413922B (en)
DE (1) DE50114468D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT410498B (en) * 2001-02-20 2003-05-26 Akg Acoustics Gmbh ELECTROACOUSTIC CAPSULE
JP2005244427A (en) * 2004-02-25 2005-09-08 Audio Technica Corp Unidirectional condenser microphone unit
JP4802985B2 (en) * 2006-11-07 2011-10-26 ヤマハ株式会社 Speaker
US9716934B2 (en) * 2015-04-24 2017-07-25 Apple Inc. Liquid ingress-redirecting acoustic device reservoir
CN213818153U (en) * 2019-12-30 2021-07-27 楼氏电子(苏州)有限公司 MEMS transducer and microphone assembly
US11638079B1 (en) 2020-07-31 2023-04-25 Waymo Llc External microphone heater

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2115129A (en) * 1935-06-08 1938-04-26 Telefunken Gmbh Loudspeaker
US3991285A (en) * 1973-10-01 1976-11-09 U.S. Philips Corporation Microphone having an electrostatic cartridge having a structural electrical resistor
US4450929A (en) * 1980-05-09 1984-05-29 Marrs Ralph E Acoustic energy systems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3371045B2 (en) * 1994-12-26 2003-01-27 株式会社オーディオテクニカ Condenser microphone

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2115129A (en) * 1935-06-08 1938-04-26 Telefunken Gmbh Loudspeaker
US3991285A (en) * 1973-10-01 1976-11-09 U.S. Philips Corporation Microphone having an electrostatic cartridge having a structural electrical resistor
US4450929A (en) * 1980-05-09 1984-05-29 Marrs Ralph E Acoustic energy systems

Also Published As

Publication number Publication date
DE50114468D1 (en) 2008-12-18
CN1371234A (en) 2002-09-25
US20020110254A1 (en) 2002-08-15
AT413922B (en) 2006-07-15
JP4038051B2 (en) 2008-01-23
CN1248543C (en) 2006-03-29
EP1233648B1 (en) 2008-11-05
JP2002271899A (en) 2002-09-20
EP1233648A2 (en) 2002-08-21
US6792123B2 (en) 2004-09-14
ATE413786T1 (en) 2008-11-15
ATA2272001A (en) 2005-10-15

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