ES393734A2 - Electro-acoustic transducer - Google Patents

Electro-acoustic transducer

Info

Publication number
ES393734A2
ES393734A2 ES393734A ES393734A ES393734A2 ES 393734 A2 ES393734 A2 ES 393734A2 ES 393734 A ES393734 A ES 393734A ES 393734 A ES393734 A ES 393734A ES 393734 A2 ES393734 A2 ES 393734A2
Authority
ES
Spain
Prior art keywords
electro
acoustic transducer
mounting ring
membrane
transducer element
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
ES393734A
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 ES393734A2 publication Critical patent/ES393734A2/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

Landscapes

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

Abstract

Improvements introduced in the object of the main patent No. 379,238 by "Microphone or bone conduction receiver" as in any of points 1 to 10 of the main powerful, in which said transducer element is supported by the central region of a membrane peripherally attached to one end of a mounting ring said membrane being of a material that transmits little the vibrations of the mounting ring to the transducer element. (Machine-translation by Google Translate, not legally binding)
ES393734A 1970-07-29 1971-07-29 Electro-acoustic transducer Expired ES393734A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3670670A GB1277913A (en) 1970-07-29 1970-07-29 Electro-acoustic transducer

Publications (1)

Publication Number Publication Date
ES393734A2 true ES393734A2 (en) 1973-08-16

Family

ID=10390522

Family Applications (1)

Application Number Title Priority Date Filing Date
ES393734A Expired ES393734A2 (en) 1970-07-29 1971-07-29 Electro-acoustic transducer

Country Status (4)

Country Link
ES (1) ES393734A2 (en)
FR (1) FR2104810B2 (en)
GB (1) GB1277913A (en)
IT (1) IT986816B (en)

Also Published As

Publication number Publication date
FR2104810A2 (en) 1972-04-21
IT986816B (en) 1975-01-30
GB1277913A (en) 1972-06-14
FR2104810B2 (en) 1976-09-03

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Legal Events

Date Code Title Description
FD2A Announcement of lapse in spain

Effective date: 20170704