FR2199921A5 - - Google Patents

Info

Publication number
FR2199921A5
FR2199921A5 FR7233529A FR7233529A FR2199921A5 FR 2199921 A5 FR2199921 A5 FR 2199921A5 FR 7233529 A FR7233529 A FR 7233529A FR 7233529 A FR7233529 A FR 7233529A FR 2199921 A5 FR2199921 A5 FR 2199921A5
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
FR7233529A
Other languages
French (fr)
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.)
Alcatel CIT SA
Nokia Inc
Original Assignee
Alcatel CIT SA
Nokia Inc
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 CIT SA, Nokia Inc filed Critical Alcatel CIT SA
Priority to FR7233529A priority Critical patent/FR2199921A5/fr
Priority to CH1311373A priority patent/CH578809A5/xx
Priority to DE19732345757 priority patent/DE2345757A1/de
Priority to BE1005356A priority patent/BE804753A/xx
Priority to GB4425273A priority patent/GB1423668A/en
Priority to NL7313088A priority patent/NL7313088A/xx
Priority to IT2922873A priority patent/IT993358B/it
Application granted granted Critical
Publication of FR2199921A5 publication Critical patent/FR2199921A5/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • 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
    • H04M1/515—Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of DC signals of alternating polarity, coded pulses or impedance dialling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Input From Keyboards Or The Like (AREA)
FR7233529A 1972-09-21 1972-09-21 Expired FR2199921A5 (enrdf_load_stackoverflow)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7233529A FR2199921A5 (enrdf_load_stackoverflow) 1972-09-21 1972-09-21
CH1311373A CH578809A5 (enrdf_load_stackoverflow) 1972-09-21 1973-09-11
DE19732345757 DE2345757A1 (de) 1972-09-21 1973-09-11 Vorrichtung zur uebertragung von rufnummern mit hilfe von spannungsstufen
BE1005356A BE804753A (fr) 1972-09-21 1973-09-12 Dispositif transmetteur de numerotation par niveaux de tension
GB4425273A GB1423668A (en) 1972-09-21 1973-09-20 Dialling signal transmission system
NL7313088A NL7313088A (enrdf_load_stackoverflow) 1972-09-21 1973-09-21
IT2922873A IT993358B (it) 1972-09-21 1973-09-21 Dispositivo trasmettitore di numera zione mediante livelli di tensione

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7233529A FR2199921A5 (enrdf_load_stackoverflow) 1972-09-21 1972-09-21

Publications (1)

Publication Number Publication Date
FR2199921A5 true FR2199921A5 (enrdf_load_stackoverflow) 1974-04-12

Family

ID=9104608

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7233529A Expired FR2199921A5 (enrdf_load_stackoverflow) 1972-09-21 1972-09-21

Country Status (7)

Country Link
BE (1) BE804753A (enrdf_load_stackoverflow)
CH (1) CH578809A5 (enrdf_load_stackoverflow)
DE (1) DE2345757A1 (enrdf_load_stackoverflow)
FR (1) FR2199921A5 (enrdf_load_stackoverflow)
GB (1) GB1423668A (enrdf_load_stackoverflow)
IT (1) IT993358B (enrdf_load_stackoverflow)
NL (1) NL7313088A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036801C2 (de) * 1980-09-30 1982-08-26 Ritto-Werk Loh GmbH & Co KG, 6348 Herborn Schaltungsanordnung zur Übertragung von Gleichstrom-Kennzeichen über eine zweiradrige Leitung von einer Sendestelle zu einer Empfangsstelle, insbesondere von einer Sprechstelle zu der Zentrale einer Sprechanlage
GB8614199D0 (en) * 1986-06-11 1986-07-16 Salplex Ltd Information handling & control systems

Also Published As

Publication number Publication date
NL7313088A (enrdf_load_stackoverflow) 1974-03-25
CH578809A5 (enrdf_load_stackoverflow) 1976-08-13
DE2345757A1 (de) 1974-03-28
IT993358B (it) 1975-09-30
BE804753A (fr) 1974-03-12
GB1423668A (en) 1976-02-04

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Legal Events

Date Code Title Description
ST Notification of lapse