IT989204B - ELECTROACOUSTIC TRANSDUCER - Google Patents

ELECTROACOUSTIC TRANSDUCER

Info

Publication number
IT989204B
IT989204B IT2371673A IT2371673A IT989204B IT 989204 B IT989204 B IT 989204B IT 2371673 A IT2371673 A IT 2371673A IT 2371673 A IT2371673 A IT 2371673A IT 989204 B IT989204 B IT 989204B
Authority
IT
Italy
Prior art keywords
electroacoustic transducer
electroacoustic
transducer
Prior art date
Application number
IT2371673A
Other languages
Italian (it)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of IT989204B publication Critical patent/IT989204B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0603—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a piezoelectric bender, e.g. bimorph
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/005—Details of transducers, loudspeakers or microphones using digitally weighted transducing elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Analogue/Digital Conversion (AREA)
IT2371673A 1972-06-30 1973-05-04 ELECTROACOUSTIC TRANSDUCER IT989204B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH982372A CH539845A (en) 1972-06-30 1972-06-30 Electroacoustic converter

Publications (1)

Publication Number Publication Date
IT989204B true IT989204B (en) 1975-05-20

Family

ID=4356019

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2371673A IT989204B (en) 1972-06-30 1973-05-04 ELECTROACOUSTIC TRANSDUCER

Country Status (7)

Country Link
JP (1) JPS5412049B2 (en)
CA (1) CA994467A (en)
CH (1) CH539845A (en)
DE (1) DE2328999C3 (en)
FR (1) FR2237392B1 (en)
GB (1) GB1382927A (en)
IT (1) IT989204B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51120710A (en) * 1975-04-15 1976-10-22 Kawai Musical Instr Mfg Co Ltd Digital speakes system
JPS51123134A (en) * 1975-04-18 1976-10-27 Kawai Musical Instr Mfg Co Ltd Digital type speaker and digital type speaker system
JPS51126120A (en) * 1975-04-25 1976-11-04 Kawai Musical Instr Mfg Co Ltd Degital speaker system
US4184116A (en) * 1977-04-07 1980-01-15 Argos Products Company, Inc. Communication system having analog-to-digital-to-analog conversion means
US4395593A (en) * 1979-11-27 1983-07-26 Bell Telephone Laboratories, Incorporated Acoustic differential digital coder
FR2521382A2 (en) * 1982-02-09 1983-08-12 Lectret Sa ACOUSTIC TRANSDUCER
US4515997A (en) * 1982-09-23 1985-05-07 Stinger Jr Walter E Direct digital loudspeaker
US4783821A (en) * 1987-11-25 1988-11-08 The Regents Of The University Of California IC processed piezoelectric microphone
JPH04501046A (en) * 1988-09-26 1992-02-20 エー　ヴェー　デー　エレクトロニク―ヴェルケ　ドイチュラント　ゲゼルシャフト　ミット　ベシュレンクテル　ハフツング speaker
JPH0295405U (en) * 1989-01-12 1990-07-30
DE19712728C1 (en) * 1997-03-26 1998-11-19 Dornier Gmbh Piezoelectric speaker
US6492761B1 (en) * 1998-01-20 2002-12-10 Ericsson Inc. Digital piezoelectric transducers and methods
JP3642460B2 (en) * 1998-12-07 2005-04-27 松下電器産業株式会社 Digital handset
US9167354B2 (en) 2011-03-09 2015-10-20 Sennheiser Electronic Gmbh & Co. Kg Electroacoustic sound transducer
JP6216885B2 (en) * 2014-06-30 2017-10-18 富士フイルム株式会社 Electroacoustic conversion film and digital speaker

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153229A (en) * 1963-05-13 1964-10-13 Charles E Roberts Digital actuator and direct digital transducer employing same
US3286032A (en) * 1963-06-03 1966-11-15 Itt Digital microphone
CH466376A (en) * 1968-03-01 1968-12-15 Ibm Arrangement for converting pressures into digital electrical signals

Also Published As

Publication number Publication date
CA994467A (en) 1976-08-03
DE2328999B2 (en) 1981-04-02
GB1382927A (en) 1975-02-05
JPS4945673A (en) 1974-05-01
DE2328999A1 (en) 1974-01-17
FR2237392B1 (en) 1978-12-01
CH539845A (en) 1973-07-31
FR2237392A1 (en) 1975-02-07
DE2328999C3 (en) 1981-12-10
JPS5412049B2 (en) 1979-05-19

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