FR2344193A1 - Circuit de detection de l'inversion d'alimentation d'une ligne de transmission - Google Patents

Circuit de detection de l'inversion d'alimentation d'une ligne de transmission

Info

Publication number
FR2344193A1
FR2344193A1 FR7607100A FR7607100A FR2344193A1 FR 2344193 A1 FR2344193 A1 FR 2344193A1 FR 7607100 A FR7607100 A FR 7607100A FR 7607100 A FR7607100 A FR 7607100A FR 2344193 A1 FR2344193 A1 FR 2344193A1
Authority
FR
France
Prior art keywords
signals
memory
detection circuit
transmission line
circuit
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.)
Granted
Application number
FR7607100A
Other languages
English (en)
French (fr)
Other versions
FR2344193B1 (enrdf_load_stackoverflow
Inventor
Jean-Jacques Souletie
Francois Sfreddo
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil 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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Priority to FR7607100A priority Critical patent/FR2344193A1/fr
Priority to ES456750A priority patent/ES456750A1/es
Publication of FR2344193A1 publication Critical patent/FR2344193A1/fr
Application granted granted Critical
Publication of FR2344193B1 publication Critical patent/FR2344193B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/34—Charging, billing or metering arrangements for private branch exchanges
    • 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)
  • Meter Arrangements (AREA)
FR7607100A 1976-03-12 1976-03-12 Circuit de detection de l'inversion d'alimentation d'une ligne de transmission Granted FR2344193A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7607100A FR2344193A1 (fr) 1976-03-12 1976-03-12 Circuit de detection de l'inversion d'alimentation d'une ligne de transmission
ES456750A ES456750A1 (es) 1976-03-12 1977-03-11 Un circuito para la deteccion de la inversion de la tension de alimentacion en una linea de transmision.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7607100A FR2344193A1 (fr) 1976-03-12 1976-03-12 Circuit de detection de l'inversion d'alimentation d'une ligne de transmission

Publications (2)

Publication Number Publication Date
FR2344193A1 true FR2344193A1 (fr) 1977-10-07
FR2344193B1 FR2344193B1 (enrdf_load_stackoverflow) 1980-04-18

Family

ID=9170321

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7607100A Granted FR2344193A1 (fr) 1976-03-12 1976-03-12 Circuit de detection de l'inversion d'alimentation d'une ligne de transmission

Country Status (2)

Country Link
ES (1) ES456750A1 (enrdf_load_stackoverflow)
FR (1) FR2344193A1 (enrdf_load_stackoverflow)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2234716A1 (en) * 1973-06-19 1975-01-17 Telephones Cie Polarity inversion sensor - uses photo-coupled transistor-diodes and is applicable to telephone lines
US3898389A (en) * 1972-10-18 1975-08-05 Communic Mfg Voltage and/or current-sensitive loop extender
GB1414459A (en) * 1972-01-12 1975-11-19 Standard Telephones Cables Ltd Electronic relay

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1414459A (en) * 1972-01-12 1975-11-19 Standard Telephones Cables Ltd Electronic relay
US3898389A (en) * 1972-10-18 1975-08-05 Communic Mfg Voltage and/or current-sensitive loop extender
FR2234716A1 (en) * 1973-06-19 1975-01-17 Telephones Cie Polarity inversion sensor - uses photo-coupled transistor-diodes and is applicable to telephone lines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV700/73 *

Also Published As

Publication number Publication date
FR2344193B1 (enrdf_load_stackoverflow) 1980-04-18
ES456750A1 (es) 1978-01-16

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Legal Events

Date Code Title Description
TP Transmission of property