NO985719D0 - Elektroakustisk transduser - Google Patents

Elektroakustisk transduser

Info

Publication number
NO985719D0
NO985719D0 NO985719A NO985719A NO985719D0 NO 985719 D0 NO985719 D0 NO 985719D0 NO 985719 A NO985719 A NO 985719A NO 985719 A NO985719 A NO 985719A NO 985719 D0 NO985719 D0 NO 985719D0
Authority
NO
Norway
Prior art keywords
transducer
electroacoustic transducer
inductance
energy
acoustic
Prior art date
Application number
NO985719A
Other languages
English (en)
Other versions
NO985719L (no
NO312800B1 (no
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
Publication of NO985719D0 publication Critical patent/NO985719D0/no
Publication of NO985719L publication Critical patent/NO985719L/no
Publication of NO312800B1 publication Critical patent/NO312800B1/no

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
    • 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)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Measuring Fluid Pressure (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
NO19985719A 1996-06-07 1998-12-07 Elektroakustisk transducer NO312800B1 (no)

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 (3)

Publication Number Publication Date
NO985719D0 true NO985719D0 (no) 1998-12-07
NO985719L NO985719L (no) 1999-02-05
NO312800B1 NO312800B1 (no) 2002-07-01

Family

ID=8546167

Family Applications (1)

Application Number Title Priority Date Filing Date
NO19985719A NO312800B1 (no) 1996-06-07 1998-12-07 Elektroakustisk transducer

Country Status (13)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2414491A1 (en) * 2000-07-11 2002-01-17 American Technology Corporation Power amplification for parametric loudspeakers
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

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
JPH083528B2 (ja) * 1986-07-15 1996-01-17 株式会社日立製作所 超音波装置
US4817066A (en) * 1985-10-09 1989-03-28 Hitachi, Ltd Transmitter/receiver for ultrasonic diagnostic system
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
JP3632978B2 (ja) 2005-03-30
AU3035097A (en) 1998-01-07
EP0903058B1 (en) 2002-05-22
EP0903058A1 (en) 1999-03-24
DE69712755T2 (de) 2002-11-21
ES2175412T3 (es) 2002-11-16
CA2257447A1 (en) 1997-12-18
WO1997048253A1 (en) 1997-12-18
NO985719L (no) 1999-02-05
DE69712755D1 (de) 2002-06-27
ATE218027T1 (de) 2002-06-15
DK0903058T3 (da) 2002-08-26
US6570818B1 (en) 2003-05-27
PT903058E (pt) 2002-09-30
FI962386A0 (fi) 1996-06-07
NO312800B1 (no) 2002-07-01
JP2000512104A (ja) 2000-09-12

Similar Documents

Publication Publication Date Title
DE3168529D1 (en) Circuit for a piezoelectric positioning element and the like
SI1586164T1 (sl) Razporeditev vezja za kapacitivno bliĹľinsko stikalo
DE69205413D1 (de) Elektronische vorrichtung zur elektrischen energieumwandlung.
JP2001514946A5 (ja) 植込形刺激装置のための出力回路
DE69841689D1 (de) Piezoelektrischer wandler und anwendungsmethode
DK0903058T3 (da) Elektroakustisk transducer
GR900300145T1 (en) Electrical energy accumulator of the capacitive type with high capacity
EP0354735A3 (en) Constant voltage generating circuit for selectively generating a constant voltage at a high-speed
JPS5780264A (en) Double voltage generating circuit
SU1317595A2 (ru) Преобразователь напр жени
SU1190478A2 (ru) Генератор пр моугольных импульсов
RU1786639C (ru) Импульсный генератор напр жени
SU1354398A2 (ru) Генератор импульсов
JPH0336938A (ja) 充電装置
SE9801120D0 (sv) Electrical device
JPS5694867A (en) Call signal device of telephone
JPS57111710A (en) Voltage dividing and dropping circuit
RU93038841A (ru) Емкостный накопитель электрической энергии
KR910007124A (ko) 솔라 밧데리
JPS6419917A (en) Power source circuit
UA9438A1 (uk) Геhератор hаhосекуhдhих імпульсів
JPS5728576A (en) Inverter device
JPH0220359U (no)
JPS57166877A (en) Dc/dc converter
UA8600A1 (uk) Обладhаhhя компеhсації реактивhої потужhості