CH539845A - Electroacoustic converter - Google Patents

Electroacoustic converter

Info

Publication number
CH539845A
CH539845A CH982372A CH982372A CH539845A CH 539845 A CH539845 A CH 539845A CH 982372 A CH982372 A CH 982372A CH 982372 A CH982372 A CH 982372A CH 539845 A CH539845 A CH 539845A
Authority
CH
Switzerland
Prior art keywords
electroacoustic converter
electroacoustic
converter
Prior art date
Application number
CH982372A
Other languages
German (de)
Inventor
Werner Dr Baechtold
H Dr Rothauser Ernst
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
Priority to CH982372A priority Critical patent/CH539845A/en
Priority to IT2371673A priority patent/IT989204B/en
Priority to GB2620973A priority patent/GB1382927A/en
Priority to JP6099173A priority patent/JPS5412049B2/ja
Priority to CA173,048A priority patent/CA994467A/en
Priority to DE19732328999 priority patent/DE2328999C3/en
Priority to FR7324277A priority patent/FR2237392B1/fr
Publication of CH539845A publication Critical patent/CH539845A/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)
CH982372A 1972-06-30 1972-06-30 Electroacoustic converter CH539845A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CH982372A CH539845A (en) 1972-06-30 1972-06-30 Electroacoustic converter
IT2371673A IT989204B (en) 1972-06-30 1973-05-04 ELECTROACOUSTIC TRANSDUCER
GB2620973A GB1382927A (en) 1972-06-30 1973-06-01 Electroacoustic transducer
JP6099173A JPS5412049B2 (en) 1972-06-30 1973-06-01
CA173,048A CA994467A (en) 1972-06-30 1973-06-04 Decoding transducer devices
DE19732328999 DE2328999C3 (en) 1972-06-30 1973-06-07 Electroacoustic converter
FR7324277A FR2237392B1 (en) 1972-06-30 1973-06-26

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
CH539845A true CH539845A (en) 1973-07-31

Family

ID=4356019

Family Applications (1)

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

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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521382A2 (en) * 1982-02-09 1983-08-12 Lectret Sa ACOUSTIC TRANSDUCER
EP0361249A1 (en) * 1988-09-26 1990-04-04 E W D Electronic-Werke Deutschland Gmbh Sound reproduction set for screens

Families Citing this family (13)

* 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
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
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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521382A2 (en) * 1982-02-09 1983-08-12 Lectret Sa ACOUSTIC TRANSDUCER
EP0085997A2 (en) * 1982-02-09 1983-08-17 Lectret S.A. Acoustic transducer
EP0085997A3 (en) * 1982-02-09 1984-07-18 Lectret S.A. Acoustic transducer
EP0361249A1 (en) * 1988-09-26 1990-04-04 E W D Electronic-Werke Deutschland Gmbh Sound reproduction set for screens
US5400414A (en) * 1988-09-26 1995-03-21 Electronic-Werke Deutschland Gmbh Loudspeaker

Also Published As

Publication number Publication date
FR2237392A1 (en) 1975-02-07
DE2328999A1 (en) 1974-01-17
GB1382927A (en) 1975-02-05
CA994467A (en) 1976-08-03
DE2328999B2 (en) 1981-04-02
JPS5412049B2 (en) 1979-05-19
IT989204B (en) 1975-05-20
FR2237392B1 (en) 1978-12-01
JPS4945673A (en) 1974-05-01
DE2328999C3 (en) 1981-12-10

Similar Documents

Publication Publication Date Title
NL173699C (en) ELECTROACOUSTIC CONVERTER.
BE802780A (en) ELECTRO-ACOUSTIC CONVERTER
CH524943A (en) Electroacoustic converter
DK140360B (en) Electroacoustic converter.
SE392559B (en) ULTRASOUND CONVERTER
IT971692B (en) HEADSET
NO132745C (en) ELECTROACUSTIC CONVERTER
NO142638C (en) IMAGE CONVERTER.
SE389253B (en) SPEAKERS
DK137820B (en) Electroacoustic converter.
IT986369B (en) ELECTROACOUSTIC TRANSDUCER
SE394044B (en) MAGNETOR RESISTIVE CONVERTER
CH545053A (en) Electroacoustic converter
SE384735B (en) LOGARITMIC RESISTANCE FREQUENCY CONVERTER
SE382724B (en) CONTROLLABLE CONVERTER.
BE797410A (en) CONVERTER EQUIPMENT
DK139370B (en) Electroacoustic converter.
CH539845A (en) Electroacoustic converter
IT989118B (en) ELECTROACOUSTIC TRANSDUCER
TR17483A (en) ISOPARAFIN-OLEFIN ALKING PROCEDURE
BE797411A (en) CONVERTER EQUIPMENT
CH552926A (en) ELECTROACOUSTIC CONVERTER ARRANGEMENT.
IT993669B (en) ELECTROMECHANICAL CONVERTER
AT310271B (en) Electroacoustic converter
IT1033524B (en) STATIC CONVERTER

Legal Events

Date Code Title Description
PL Patent ceased