DK0903058T3 - Elektroakustisk transducer - Google Patents

Elektroakustisk transducer

Info

Publication number
DK0903058T3
DK0903058T3 DK97925087T DK97925087T DK0903058T3 DK 0903058 T3 DK0903058 T3 DK 0903058T3 DK 97925087 T DK97925087 T DK 97925087T DK 97925087 T DK97925087 T DK 97925087T DK 0903058 T3 DK0903058 T3 DK 0903058T3
Authority
DK
Denmark
Prior art keywords
transducer
electroacoustic transducer
inductance
energy
acoustic
Prior art date
Application number
DK97925087T
Other languages
Danish (da)
English (en)
Inventor
Kari Kirjavainen
Original Assignee
Panphonics Oy
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 Panphonics Oy filed Critical Panphonics Oy
Application granted granted Critical
Publication of DK0903058T3 publication Critical patent/DK0903058T3/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • 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
    • Y10S367/00—Communications, electrical: acoustic wave systems and devices
    • Y10S367/903—Transmit-receive circuitry

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
DK97925087T 1996-06-07 1997-06-06 Elektroakustisk transducer DK0903058T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI962386A FI962386A0 (fi) 1996-06-07 1996-06-07 Elektroakustisk omvandlare
PCT/FI1997/000354 WO1997048253A1 (en) 1996-06-07 1997-06-06 Electroacoustic transducer

Publications (1)

Publication Number Publication Date
DK0903058T3 true DK0903058T3 (da) 2002-08-26

Family

ID=8546167

Family Applications (1)

Application Number Title Priority Date Filing Date
DK97925087T DK0903058T3 (da) 1996-06-07 1997-06-06 Elektroakustisk transducer

Country Status (13)

Country Link
US (1) US6570818B1 (ja)
EP (1) EP0903058B1 (ja)
JP (1) JP3632978B2 (ja)
AT (1) ATE218027T1 (ja)
AU (1) AU3035097A (ja)
CA (1) CA2257447A1 (ja)
DE (1) DE69712755T2 (ja)
DK (1) DK0903058T3 (ja)
ES (1) ES2175412T3 (ja)
FI (1) FI962386A0 (ja)
NO (1) NO312800B1 (ja)
PT (1) PT903058E (ja)
WO (1) WO1997048253A1 (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100336299C (zh) * 2000-07-11 2007-09-05 美国技术有限公司 参数扬声器的功率放大
FI118622B (fi) 2002-01-17 2008-01-15 Band Oy B Soittimen muunnin ja menetelmä sen valmistamiseksi
JP4116930B2 (ja) * 2003-06-03 2008-07-09 古野電気株式会社 超音波送信装置、超音波送受信装置、および探知装置
US9794703B2 (en) 2014-06-27 2017-10-17 Cochlear Limited Low-power active bone conduction devices
JP6528391B2 (ja) * 2014-11-25 2019-06-12 セイコーエプソン株式会社 液体吐出装置、ヘッドユニット、容量性負荷駆動用集積回路装置および容量性負荷駆動回路
EP4702766A1 (en) * 2023-04-26 2026-03-04 Sonion Nederland B.V. Miniature speaker

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786495A (en) 1972-05-17 1974-01-15 Ncr Stored charge transducer
DE2357499C3 (de) 1973-11-17 1979-03-01 Standard Elektrik Lorenz Ag, 7000 Stuttgart Ultraschallsender zur Fernbedienung von Rundfunk- und Fernsehempfängern
GB1499575A (en) 1974-09-11 1978-02-01 Seiko Instr & Electronics Electronic buzzers
NL7802688A (nl) 1978-03-13 1979-09-17 Philips Nv Inrichting voor het omzetten van akoestische in elektrische trillingen en omgekeerd, voor- zien van tenminste een kondensator elektreet- element aangesloten op een elektronische schakeling.
US4207442A (en) * 1978-05-15 1980-06-10 Freeman Miller L Driver circuit for electrostatic transducers
DE3048632A1 (de) * 1980-12-23 1982-07-22 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung fuer piezoelektrisches stellglied und dergleichen
US4817066A (en) * 1985-10-09 1989-03-28 Hitachi, Ltd Transmitter/receiver for ultrasonic diagnostic system
JPH083528B2 (ja) * 1986-07-15 1996-01-17 株式会社日立製作所 超音波装置
JPS62155698A (ja) 1985-12-27 1987-07-10 Nippon Atsudenki Kk 容量性拡声器の省電力駆動装置
US5161128A (en) 1990-11-30 1992-11-03 Ultrasonic Arrays, Inc. Capacitive transducer system and method
GB2296365B (en) 1993-08-16 1997-01-15 Fulleon Synchrobell Ltd Sounder

Also Published As

Publication number Publication date
DE69712755D1 (de) 2002-06-27
CA2257447A1 (en) 1997-12-18
NO985719L (no) 1999-02-05
ES2175412T3 (es) 2002-11-16
EP0903058A1 (en) 1999-03-24
ATE218027T1 (de) 2002-06-15
WO1997048253A1 (en) 1997-12-18
PT903058E (pt) 2002-09-30
DE69712755T2 (de) 2002-11-21
JP2000512104A (ja) 2000-09-12
NO312800B1 (no) 2002-07-01
AU3035097A (en) 1998-01-07
NO985719D0 (no) 1998-12-07
EP0903058B1 (en) 2002-05-22
FI962386A0 (fi) 1996-06-07
US6570818B1 (en) 2003-05-27
JP3632978B2 (ja) 2005-03-30

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