FR2199236B1 - - Google Patents

Info

Publication number
FR2199236B1
FR2199236B1 FR7332453A FR7332453A FR2199236B1 FR 2199236 B1 FR2199236 B1 FR 2199236B1 FR 7332453 A FR7332453 A FR 7332453A FR 7332453 A FR7332453 A FR 7332453A FR 2199236 B1 FR2199236 B1 FR 2199236B1
Authority
FR
France
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
FR7332453A
Other languages
French (fr)
Other versions
FR2199236A1 (it
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2199236A1 publication Critical patent/FR2199236A1/fr
Application granted granted Critical
Publication of FR2199236B1 publication Critical patent/FR2199236B1/fr
Expired 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
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Telephonic Communication Services (AREA)
FR7332453A 1972-09-11 1973-09-10 Expired FR2199236B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPB038672 1972-09-11

Publications (2)

Publication Number Publication Date
FR2199236A1 FR2199236A1 (it) 1974-04-05
FR2199236B1 true FR2199236B1 (it) 1978-01-13

Family

ID=3765315

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7332453A Expired FR2199236B1 (it) 1972-09-11 1973-09-10

Country Status (3)

Country Link
DE (1) DE2345508A1 (it)
FR (1) FR2199236B1 (it)
GB (1) GB1394148A (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1521468A (en) * 1974-10-11 1978-08-16 Standard Telephones Cables Ltd Circuit arrangement for telephone subset
FR2319256A1 (fr) * 1975-07-23 1977-02-18 Bailleul Roland Circuits electroniques et electromagnetiques permettant l'adaptation d'un clavier numerique a un poste telephonique a cadran d'appel par quatre fils
DE2536200C2 (de) * 1975-08-13 1983-04-21 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schaltungsanordnung zur Überwachung einer Sprechader in Fernsprechapparaten
DE3801841A1 (de) * 1988-01-20 1989-08-03 Deutsche Telephonwerk Kabel Schaltungsanordnung fuer tastwahlbloecke in kommunikations-endgeraeten

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1229154B (de) * 1965-04-30 1966-11-24 Maack Elmewe Schaltungsanordnung fuer Gebuehrenzaehler in Fernsprechteilnehmerstationen
DE2043611A1 (de) * 1970-09-03 1972-03-09 Tn Ladeschaltung für Kondensatoren am Ende einer, nur geringe Leistung über tragenden Leitung in Fernmeldeanlagen
BE788732A (fr) * 1971-09-13 1973-03-13 Int Standard Electric Corp Poste telephonique a clavier
CH537679A (de) * 1971-10-29 1973-05-31 Sodeco Compteurs De Geneve Einrichtung zum Speisen von Zusatzgeräten bei Telephonsprechstellen
BE794179A (nl) * 1972-01-21 1973-07-18 Itt Geintegreerde schakeling voor het kiezen van abonneenummers met druktoetsen

Also Published As

Publication number Publication date
DE2345508A1 (de) 1974-03-28
GB1394148A (en) 1975-05-14
FR2199236A1 (it) 1974-04-05

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Legal Events

Date Code Title Description
ST Notification of lapse