DK1329129T3 - Capacitive transducer - Google Patents

Capacitive transducer

Info

Publication number
DK1329129T3
DK1329129T3 DK01978227T DK01978227T DK1329129T3 DK 1329129 T3 DK1329129 T3 DK 1329129T3 DK 01978227 T DK01978227 T DK 01978227T DK 01978227 T DK01978227 T DK 01978227T DK 1329129 T3 DK1329129 T3 DK 1329129T3
Authority
DK
Denmark
Prior art keywords
capacitive transducer
capacitive
transducer
Prior art date
Application number
DK01978227T
Other languages
Danish (da)
Inventor
Jens Ole Gullov
Niels Eirby
Original Assignee
Brueel & Kjaer Sound & Vibrati
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 Brueel & Kjaer Sound & Vibrati filed Critical Brueel & Kjaer Sound & Vibrati
Priority claimed from EP01978227A external-priority patent/EP1329129B1/en
Application granted granted Critical
Publication of DK1329129T3 publication Critical patent/DK1329129T3/en

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)
DK01978227T 2000-10-20 2001-10-19 Capacitive transducer DK1329129T3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DKPA200001567 2000-10-20
US24567200P 2000-11-06 2000-11-06
EP01978227A EP1329129B1 (en) 2000-10-20 2001-10-19 A capacitive transducer
PCT/DK2001/000692 WO2002034008A1 (en) 2000-10-20 2001-10-19 A capacitive transducer

Publications (1)

Publication Number Publication Date
DK1329129T3 true DK1329129T3 (en) 2005-04-25

Family

ID=27761044

Family Applications (2)

Application Number Title Priority Date Filing Date
DK01978227T DK1329129T3 (en) 2000-10-20 2001-10-19 Capacitive transducer
DK03076316T DK1343353T3 (en) 2000-10-20 2001-10-19 Capacitive transducer

Family Applications After (1)

Application Number Title Priority Date Filing Date
DK03076316T DK1343353T3 (en) 2000-10-20 2001-10-19 Capacitive transducer

Country Status (2)

Country Link
EP (1) EP1343353B1 (en)
DK (2) DK1329129T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100604093B1 (en) * 2004-03-18 2006-07-28 주식회사 비에스이 Back plate structure of directional electret condenser microphone
CN101141832B (en) * 2006-09-06 2011-04-20 歌尔声学股份有限公司 Single membrane capacitance type microphone chip
CN101272636B (en) * 2007-03-21 2012-07-18 歌尔声学股份有限公司 Capacitor type microphone chip

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588382A (en) * 1967-10-11 1971-06-28 Northern Electric Co Directional electret transducer
NL7313455A (en) * 1973-10-01 1975-04-03 Philips Nv MICROPHONE WITH ELECTROSTATIC CAPSULE.
DK146770C (en) * 1981-11-13 1984-06-04 Brueel & Kjaer As CAPACITY TRANSDUCER
US5854846A (en) * 1996-09-06 1998-12-29 Northrop Grumman Corporation Wafer fabricated electroacoustic transducer

Also Published As

Publication number Publication date
EP1343353A1 (en) 2003-09-10
EP1343353B1 (en) 2004-12-15
DK1343353T3 (en) 2005-04-25

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