ES475273A1 - Un transductor electroacustico. - Google Patents

Un transductor electroacustico.

Info

Publication number
ES475273A1
ES475273A1 ES475273A ES475273A ES475273A1 ES 475273 A1 ES475273 A1 ES 475273A1 ES 475273 A ES475273 A ES 475273A ES 475273 A ES475273 A ES 475273A ES 475273 A1 ES475273 A1 ES 475273A1
Authority
ES
Spain
Prior art keywords
transducer
electroacoustic transducer
transducer device
semiconductor
filament
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
ES475273A
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 ES475273A1 publication Critical patent/ES475273A1/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
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Pressure Sensors (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

Un transductor electroacústico y, más concretamente, un transductor de micrófono del tipo en el que la vibración acústica genera cambios correspondientes de resistencia, incluyendo dos o más placas semiconductoras montadas sobre un soporte laminar flexible completo o interconectados a través de uno o más filamentos semiconductores proporcionando el o los filamentos los elementos sensibles a la tensión del transductor.
ES475273A 1977-11-22 1978-11-21 Un transductor electroacustico. Expired ES475273A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4862077A GB1580087A (en) 1977-11-22 1977-11-22 Electroacoustic transducer device

Publications (1)

Publication Number Publication Date
ES475273A1 true ES475273A1 (es) 1979-05-01

Family

ID=10449290

Family Applications (1)

Application Number Title Priority Date Filing Date
ES475273A Expired ES475273A1 (es) 1977-11-22 1978-11-21 Un transductor electroacustico.

Country Status (8)

Country Link
JP (1) JPS5482186A (es)
AR (1) AR217875A1 (es)
AU (1) AU523441B2 (es)
BR (1) BR7807602A (es)
CA (1) CA1131761A (es)
ES (1) ES475273A1 (es)
GB (1) GB1580087A (es)
MX (1) MX146012A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498229A (en) * 1982-10-04 1985-02-12 Becton, Dickinson And Company Piezoresistive transducer
TWI334734B (en) * 2006-06-20 2010-12-11 Ind Tech Res Inst Miniature acoustic transducer
JP5388025B2 (ja) * 2008-12-12 2014-01-15 国立大学法人 東京大学 超音波送受信素子および超音波送受信シート

Also Published As

Publication number Publication date
JPS6115597B2 (es) 1986-04-24
GB1580087A (en) 1980-11-26
AU4145478A (en) 1979-05-31
CA1131761A (en) 1982-09-14
AU523441B2 (en) 1982-07-29
AR217875A1 (es) 1980-04-30
MX146012A (es) 1982-04-29
BR7807602A (pt) 1979-06-26
JPS5482186A (en) 1979-06-30

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19870220