BE637492A - - Google Patents

Info

Publication number
BE637492A
BE637492A BE637492DA BE637492A BE 637492 A BE637492 A BE 637492A BE 637492D A BE637492D A BE 637492DA BE 637492 A BE637492 A BE 637492A
Authority
BE
Belgium
Application number
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.)
Publication of BE637492A publication Critical patent/BE637492A/xx

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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
BE637492D 1962-11-28 BE637492A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4505262A GB1006726A (en) 1962-11-28 1962-11-28 Improvements in or relating to piezo-electric transducers

Publications (1)

Publication Number Publication Date
BE637492A true BE637492A (de)

Family

ID=10435706

Family Applications (1)

Application Number Title Priority Date Filing Date
BE637492D BE637492A (de) 1962-11-28

Country Status (6)

Country Link
BE (1) BE637492A (de)
CH (1) CH396994A (de)
DE (1) DE1259389B (de)
DK (1) DK109394C (de)
GB (1) GB1006726A (de)
NL (1) NL298219A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1234218A (de) * 1968-07-29 1971-06-03
US9763014B2 (en) * 2014-02-21 2017-09-12 Harman International Industries, Incorporated Loudspeaker with piezoelectric elements

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416887A (en) * 1944-10-20 1947-03-04 Tibbetts Lab Inc Piezoelectric device
US2552878A (en) * 1947-09-24 1951-05-15 Electro Voice Second order differential microphone
DE939598C (de) * 1951-01-13 1956-02-23 Atlas Werke Ag Vorrichtung zum Senden oder Empfangen von Schallwellen
GB727905A (en) * 1951-05-24 1955-04-13 Traugott Link An improved key mounting for accordions
DE1815439U (de) * 1960-04-14 1960-07-28 Steeg & Reuter G M B H Dr Kleinstmikrofon mit keramischem wandler.
NL6815845A (de) * 1967-11-08 1969-05-12

Also Published As

Publication number Publication date
NL298219A (de)
GB1006726A (en) 1965-10-06
DE1259389B (de) 1968-01-25
CH396994A (fr) 1965-08-15
DK109394C (da) 1968-04-22

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