ES393734A2 - Microfono o receptor de conduccion osea. - Google Patents

Microfono o receptor de conduccion osea.

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
English (en)
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/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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)
ES393734A 1970-07-29 1971-07-29 Microfono o receptor de conduccion osea. Expired ES393734A2 (es)

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 (es) 1973-08-16

Family

ID=10390522

Family Applications (1)

Application Number Title Priority Date Filing Date
ES393734A Expired ES393734A2 (es) 1970-07-29 1971-07-29 Microfono o receptor de conduccion osea.

Country Status (4)

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

Also Published As

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

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Legal Events

Date Code Title Description
FD2A Announcement of lapse in spain

Effective date: 20170704