IT1230282B - Circuito di pilotaggio per capsule telefoniche riceventi di tipo elettrodinamico o piezoceramico. - Google Patents

Circuito di pilotaggio per capsule telefoniche riceventi di tipo elettrodinamico o piezoceramico.

Info

Publication number
IT1230282B
IT1230282B IT8920877A IT2087789A IT1230282B IT 1230282 B IT1230282 B IT 1230282B IT 8920877 A IT8920877 A IT 8920877A IT 2087789 A IT2087789 A IT 2087789A IT 1230282 B IT1230282 B IT 1230282B
Authority
IT
Italy
Prior art keywords
electrodynamic
receiving telephone
circuit
piloting circuit
capsules
Prior art date
Application number
IT8920877A
Other languages
English (en)
Other versions
IT8920877A0 (it
Inventor
Alberto Buraglio
Mario Covini
Original Assignee
Sits Soc It Telecom Siemens
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 Sits Soc It Telecom Siemens filed Critical Sits Soc It Telecom Siemens
Priority to IT8920877A priority Critical patent/IT1230282B/it
Publication of IT8920877A0 publication Critical patent/IT8920877A0/it
Priority to EP90201329A priority patent/EP0402969B1/en
Priority to AT90201329T priority patent/ATE130717T1/de
Priority to ES90201329T priority patent/ES2079432T3/es
Priority to DE69023700T priority patent/DE69023700T2/de
Priority to NO902649A priority patent/NO176989C/no
Application granted granted Critical
Publication of IT1230282B publication Critical patent/IT1230282B/it

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; ELECTRIC HEARING AIDS; 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)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Meter Arrangements (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Set Structure (AREA)
IT8920877A 1989-06-15 1989-06-15 Circuito di pilotaggio per capsule telefoniche riceventi di tipo elettrodinamico o piezoceramico. IT1230282B (it)

Priority Applications (6)

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.
EP90201329A EP0402969B1 (en) 1989-06-15 1990-05-25 Pilot circuit for electrodynamic or piezoceramic receiving telephone capsules
AT90201329T ATE130717T1 (de) 1989-06-15 1990-05-25 Steuerungsschaltung für elektrodynamische oder piezokeramische telefonhörerkapseln.
ES90201329T ES2079432T3 (es) 1989-06-15 1990-05-25 Circuito piloto para capsulas telefonicas receptoras de tipo electrodinamico o piezoceramico.
DE69023700T DE69023700T2 (de) 1989-06-15 1990-05-25 Steuerungsschaltung für elektrodynamische oder piezokeramische Telefonhörerkapseln.
NO902649A NO176989C (no) 1989-06-15 1990-06-14 Pilotkrets for elektrodynamisk eller piezoelektrisk telefonmottakerkapsel

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 (2)

Publication Number Publication Date
IT8920877A0 IT8920877A0 (it) 1989-06-15
IT1230282B true IT1230282B (it) 1991-10-18

Family

ID=11173425

Family Applications (1)

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

Country Status (6)

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

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
EP0402969B1 (en) 1995-11-22
NO902649L (no) 1990-12-17
NO902649D0 (no) 1990-06-14
EP0402969A3 (en) 1992-07-15
ES2079432T3 (es) 1996-01-16
NO176989C (no) 1995-06-28
EP0402969A2 (en) 1990-12-19
ATE130717T1 (de) 1995-12-15
DE69023700D1 (de) 1996-01-04
NO176989B (no) 1995-03-20
IT8920877A0 (it) 1989-06-15
DE69023700T2 (de) 1996-05-15

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960612