ES2079432T3 - Circuito piloto para capsulas telefonicas receptoras de tipo electrodinamico o piezoceramico. - Google Patents

Circuito piloto para capsulas telefonicas receptoras de tipo electrodinamico o piezoceramico.

Info

Publication number
ES2079432T3
ES2079432T3 ES90201329T ES90201329T ES2079432T3 ES 2079432 T3 ES2079432 T3 ES 2079432T3 ES 90201329 T ES90201329 T ES 90201329T ES 90201329 T ES90201329 T ES 90201329T ES 2079432 T3 ES2079432 T3 ES 2079432T3
Authority
ES
Spain
Prior art keywords
electrodynamic
pilot circuit
receiving telephone
capsules
piezoceramic
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 - Lifetime
Application number
ES90201329T
Other languages
English (en)
Inventor
Alberto Buraglio
Mario Covini
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.)
Italtel SpA
Siemens Telecomunicazioni SpA
Original Assignee
Siemens Telecomunicazioni SpA
Societa Italiana Telecomunicazioni Siemens SpA
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 Siemens Telecomunicazioni SpA, Societa Italiana Telecomunicazioni Siemens SpA filed Critical Siemens Telecomunicazioni SpA
Application granted granted Critical
Publication of ES2079432T3 publication Critical patent/ES2079432T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6016—Substation equipment, e.g. for use by subscribers including speech amplifiers in the receiver circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Circuits Of Receivers In General (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Set Structure (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Meter Arrangements (AREA)

Abstract

SE DESCRIBE UN CIRCUITO PARA EQUIPOS TELEFONICOS PROVISTO DE CIRCUITOS DE VOZ ELECTRONICOS QUE HACE QUE SEA POSIBLE UTILIZAR CAPSULAS DE RECEPCION PIEZOCERAMICA (8) EN LUGAR DE LAS ELECTRODINAMICAS SIN AGREGAR CIRCUITOS EXTERIORES DE INTERFAZ Y/O MODIFICAR DICHO CIRCUITO DE VOZ.
ES90201329T 1989-06-15 1990-05-25 Circuito piloto para capsulas telefonicas receptoras de tipo electrodinamico o piezoceramico. Expired - Lifetime ES2079432T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8920877A IT1230282B (it) 1989-06-15 1989-06-15 Circuito di pilotaggio per capsule telefoniche riceventi di tipo elettrodinamico o piezoceramico.

Publications (1)

Publication Number Publication Date
ES2079432T3 true ES2079432T3 (es) 1996-01-16

Family

ID=11173425

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90201329T Expired - Lifetime ES2079432T3 (es) 1989-06-15 1990-05-25 Circuito piloto para capsulas telefonicas receptoras de tipo electrodinamico o piezoceramico.

Country Status (6)

Country Link
EP (1) EP0402969B1 (es)
AT (1) ATE130717T1 (es)
DE (1) DE69023700T2 (es)
ES (1) ES2079432T3 (es)
IT (1) IT1230282B (es)
NO (1) NO176989C (es)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3425175A1 (de) * 1984-07-09 1986-03-27 Fernsprech- und Signalbau KG Schüler & Vershoven, 4300 Essen Piezoelektrischer, akustischer wandler

Also Published As

Publication number Publication date
DE69023700T2 (de) 1996-05-15
DE69023700D1 (de) 1996-01-04
IT1230282B (it) 1991-10-18
EP0402969A3 (en) 1992-07-15
EP0402969B1 (en) 1995-11-22
NO902649L (no) 1990-12-17
EP0402969A2 (en) 1990-12-19
ATE130717T1 (de) 1995-12-15
IT8920877A0 (it) 1989-06-15
NO176989C (no) 1995-06-28
NO176989B (no) 1995-03-20
NO902649D0 (no) 1990-06-14

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