JPS4945673A - - Google Patents

Info

Publication number
JPS4945673A
JPS4945673A JP6099173A JP6099173A JPS4945673A JP S4945673 A JPS4945673 A JP S4945673A JP 6099173 A JP6099173 A JP 6099173A JP 6099173 A JP6099173 A JP 6099173A JP S4945673 A JPS4945673 A JP S4945673A
Authority
JP
Japan
Legal status (The legal status 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 status listed.)
Granted
Application number
JP6099173A
Other languages
Japanese (ja)
Other versions
JPS5412049B2 (enrdf_load_stackoverflow
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 filed Critical
Publication of JPS4945673A publication Critical patent/JPS4945673A/ja
Publication of JPS5412049B2 publication Critical patent/JPS5412049B2/ja
Expired legal-status Critical Current

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)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Analogue/Digital Conversion (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
JP6099173A 1972-06-30 1973-06-01 Expired JPS5412049B2 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH982372A CH539845A (de) 1972-06-30 1972-06-30 Elektroakustischer Wandler

Publications (2)

Publication Number Publication Date
JPS4945673A true JPS4945673A (enrdf_load_stackoverflow) 1974-05-01
JPS5412049B2 JPS5412049B2 (enrdf_load_stackoverflow) 1979-05-19

Family

ID=4356019

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6099173A Expired JPS5412049B2 (enrdf_load_stackoverflow) 1972-06-30 1973-06-01

Country Status (7)

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

Cited By (4)

* 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
JPH0295405U (enrdf_load_stackoverflow) * 1989-01-12 1990-07-30

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (fr) * 1982-02-09 1983-08-12 Lectret Sa Transducteur acoustique
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
ES2031328T3 (es) * 1988-09-26 1992-12-01 E W D Electronic-Werke Deutschland Gmbh Aparato reproductor de imagen y sonido.
DE19712728C1 (de) * 1997-03-26 1998-11-19 Dornier Gmbh Piezoelektrischer Lautsprecher
US6492761B1 (en) 1998-01-20 2002-12-10 Ericsson Inc. Digital piezoelectric transducers and methods
JP3642460B2 (ja) * 1998-12-07 2005-04-27 松下電器産業株式会社 デジタル式送受話器
US9167354B2 (en) 2011-03-09 2015-10-20 Sennheiser Electronic Gmbh & Co. Kg Electroacoustic sound transducer
JP6216885B2 (ja) * 2014-06-30 2017-10-18 富士フイルム株式会社 電気音響変換フィルムおよびデジタルスピーカ

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 (de) * 1968-03-01 1968-12-15 Ibm Anordnung zur Umwandlung von Drücken in digitale elektrische Signale

Cited By (4)

* 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
JPH0295405U (enrdf_load_stackoverflow) * 1989-01-12 1990-07-30

Also Published As

Publication number Publication date
CA994467A (en) 1976-08-03
GB1382927A (en) 1975-02-05
IT989204B (it) 1975-05-20
FR2237392B1 (enrdf_load_stackoverflow) 1978-12-01
JPS5412049B2 (enrdf_load_stackoverflow) 1979-05-19
DE2328999A1 (de) 1974-01-17
DE2328999B2 (de) 1981-04-02
CH539845A (de) 1973-07-31
DE2328999C3 (de) 1981-12-10
FR2237392A1 (enrdf_load_stackoverflow) 1975-02-07

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