ES379238A1 - Electro-acoustic transducers - Google Patents

Electro-acoustic transducers

Info

Publication number
ES379238A1
ES379238A1 ES379238A ES379238A ES379238A1 ES 379238 A1 ES379238 A1 ES 379238A1 ES 379238 A ES379238 A ES 379238A ES 379238 A ES379238 A ES 379238A ES 379238 A1 ES379238 A1 ES 379238A1
Authority
ES
Spain
Prior art keywords
electro
acoustic transducers
translation
receiver
machine
Prior art date
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.)
Expired
Application number
ES379238A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES379238A1 publication Critical patent/ES379238A1/en
Expired legal-status Critical Current

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
    • H04R17/02—Microphones
    • 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
    • H04R1/46—Special adaptations for use as contact microphones, e.g. on musical instrument, on stethoscope

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

A bone conduction microphone or receiver comprising a piezoelectric transducer element. (Machine-translation by Google Translate, not legally binding)
ES379238A 1969-04-30 1970-04-30 Electro-acoustic transducers Expired ES379238A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21953/69A GB1277912A (en) 1969-04-30 1969-04-30 Electro-acoustic transducers

Publications (1)

Publication Number Publication Date
ES379238A1 true ES379238A1 (en) 1972-09-16

Family

ID=10171533

Family Applications (1)

Application Number Title Priority Date Filing Date
ES379238A Expired ES379238A1 (en) 1969-04-30 1970-04-30 Electro-acoustic transducers

Country Status (6)

Country Link
JP (1) JPS4823005B1 (en)
DE (1) DE2019520A1 (en)
ES (1) ES379238A1 (en)
FR (1) FR2040447B1 (en)
GB (1) GB1277912A (en)
IL (1) IL34068A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902262A (en) * 1973-12-19 1975-09-02 Burroughs Corp Identification and/or credit card with flush mounted panels
JPS5246724Y2 (en) * 1974-06-20 1977-10-24
JPS5411605U (en) * 1977-06-27 1979-01-25
JPS5363131A (en) * 1977-07-04 1978-06-06 Toshiba Corp Identification card
JPS5821468U (en) * 1981-08-06 1983-02-09 凸版印刷株式会社 card
EP0500985A1 (en) * 1991-02-27 1992-09-02 Masao Konomi Bone conduction microphone mount
JP3958739B2 (en) 2003-12-12 2007-08-15 Ｎｅｃトーキン株式会社 Acoustic vibration generator
DE102016206566A1 (en) * 2016-04-19 2017-10-19 Robert Bosch Gmbh Micromechanical component and production method for a micromechanical component
CN114449417B (en) * 2020-10-30 2022-11-25 华为技术有限公司 Speaker and electronic equipment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE452217A (en) *
US2045427A (en) * 1933-05-24 1936-06-23 Sonotone Corp Bone-conduction hearing-aid
US3423543A (en) * 1965-06-24 1969-01-21 Harry W Kompanek Loudspeaker with piezoelectric wafer driving elements

Also Published As

Publication number Publication date
IL34068A0 (en) 1970-05-21
GB1277912A (en) 1972-06-14
DE2019520A1 (en) 1970-11-12
FR2040447B1 (en) 1974-05-03
IL34068A (en) 1973-06-29
JPS4823005B1 (en) 1973-07-10
FR2040447A1 (en) 1971-01-22

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