FR2408956A1 - Dispositif pour l'emission d'un signal basse frequence de tension elevee par l'intermediaire d'une liaison a courants porteurs - Google Patents

Dispositif pour l'emission d'un signal basse frequence de tension elevee par l'intermediaire d'une liaison a courants porteurs

Info

Publication number
FR2408956A1
FR2408956A1 FR7639412A FR7639412A FR2408956A1 FR 2408956 A1 FR2408956 A1 FR 2408956A1 FR 7639412 A FR7639412 A FR 7639412A FR 7639412 A FR7639412 A FR 7639412A FR 2408956 A1 FR2408956 A1 FR 2408956A1
Authority
FR
France
Prior art keywords
current link
carrier current
emission
low frequency
carrier
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
FR7639412A
Other languages
English (en)
French (fr)
Other versions
FR2408956B1 (enExample
Inventor
Francois Bronner
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.)
Nokia Inc
Original Assignee
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 Nokia Inc filed Critical Nokia Inc
Priority to FR7639412A priority Critical patent/FR2408956A1/fr
Priority to GB33102/77A priority patent/GB1526619A/en
Priority to ZA00774771A priority patent/ZA774771B/xx
Priority to BE1008578A priority patent/BE861736A/xx
Priority to DE2757437A priority patent/DE2757437C2/de
Priority to LU78745A priority patent/LU78745A1/xx
Priority to IT31258/77A priority patent/IT1088940B/it
Priority to NL7714452A priority patent/NL7714452A/xx
Priority to CA293,958A priority patent/CA1076724A/fr
Priority to IE2637/77A priority patent/IE45880B1/en
Priority to US05/865,554 priority patent/US4197433A/en
Publication of FR2408956A1 publication Critical patent/FR2408956A1/fr
Application granted granted Critical
Publication of FR2408956B1 publication Critical patent/FR2408956B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/14—Arrangements providing for calling or supervisory signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
    • H04Q5/245—Circuit arrangements in which for one subscriber low frequency speech and/or signalling signals proceed on the line, while for the other subscriber the low frequency speech and/or signalling signals are modulated upon a high frequency carrier signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephonic Communication Services (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR7639412A 1976-12-29 1976-12-29 Dispositif pour l'emission d'un signal basse frequence de tension elevee par l'intermediaire d'une liaison a courants porteurs Granted FR2408956A1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
FR7639412A FR2408956A1 (fr) 1976-12-29 1976-12-29 Dispositif pour l'emission d'un signal basse frequence de tension elevee par l'intermediaire d'une liaison a courants porteurs
GB33102/77A GB1526619A (en) 1976-12-29 1977-08-08 Arrangement for conveying a high-voltage low-frequency signal over a carrier connection
ZA00774771A ZA774771B (en) 1976-12-29 1977-08-08 Device for conveying a high-voltage low-frequency signal over a carrier connection
BE1008578A BE861736A (fr) 1976-12-29 1977-12-12 Dispositif pour l'emission d'un signal basse frequence de tension elevee par l'intermediaire d'une liaison a courants porteurs
LU78745A LU78745A1 (enExample) 1976-12-29 1977-12-22
DE2757437A DE2757437C2 (de) 1976-12-29 1977-12-22 Schaltungsanordnung zur Übertragung eines Klingelsignals
IT31258/77A IT1088940B (it) 1976-12-29 1977-12-23 Dispositivo per l'emissione di un segnale a bassa frequenza di tensione elevata tramite un collegamento a correnti portanti
NL7714452A NL7714452A (nl) 1976-12-29 1977-12-27 Inrichting voor het uitzenden van een laag- frekwent signaal met hoge spanning via een draagstroomverbinding.
CA293,958A CA1076724A (fr) 1976-12-29 1977-12-28 Dispositif pour l'emission d'un signal basse frequence de tension elevee par l'intermediaire d'une liaison a courants porteurs
IE2637/77A IE45880B1 (en) 1976-12-29 1977-12-29 Device for conveying a high-voltage low-frequency signal over a carrier connection
US05/865,554 US4197433A (en) 1976-12-29 1977-12-29 Device for conveying a high-voltage low-frequency signal over a carrier connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7639412A FR2408956A1 (fr) 1976-12-29 1976-12-29 Dispositif pour l'emission d'un signal basse frequence de tension elevee par l'intermediaire d'une liaison a courants porteurs

Publications (2)

Publication Number Publication Date
FR2408956A1 true FR2408956A1 (fr) 1979-06-08
FR2408956B1 FR2408956B1 (enExample) 1980-04-25

Family

ID=9181669

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7639412A Granted FR2408956A1 (fr) 1976-12-29 1976-12-29 Dispositif pour l'emission d'un signal basse frequence de tension elevee par l'intermediaire d'une liaison a courants porteurs

Country Status (11)

Country Link
US (1) US4197433A (enExample)
BE (1) BE861736A (enExample)
CA (1) CA1076724A (enExample)
DE (1) DE2757437C2 (enExample)
FR (1) FR2408956A1 (enExample)
GB (1) GB1526619A (enExample)
IE (1) IE45880B1 (enExample)
IT (1) IT1088940B (enExample)
LU (1) LU78745A1 (enExample)
NL (1) NL7714452A (enExample)
ZA (1) ZA774771B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4361731A (en) * 1981-02-13 1982-11-30 Bell Telephone Laboratories, Incorporated Coin telephone control circuit
ATE421841T1 (de) * 1999-11-19 2009-02-15 Alcatel Lucent Telefonsystem, zentrale vermittlungsstelle und trennvorrichtung für analoge telefonsignalen und digitale datensignalen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2837605A (en) * 1955-02-28 1958-06-03 Bell Telephone Labor Inc Subscriber-loop carrier telephone ringing systems
US3886321A (en) * 1973-11-05 1975-05-27 Seismograph Service Corp Ringing generator for telephone station terminal
US3927266A (en) * 1974-01-16 1975-12-16 Gte Automatic Electric Lab Inc Ringer power generator circuit for subscriber carrier station terminal

Also Published As

Publication number Publication date
IE45880L (en) 1978-06-29
IT1088940B (it) 1985-06-10
FR2408956B1 (enExample) 1980-04-25
CA1076724A (fr) 1980-04-29
LU78745A1 (enExample) 1978-07-14
NL7714452A (nl) 1978-07-03
GB1526619A (en) 1978-09-27
IE45880B1 (en) 1982-12-15
DE2757437C2 (de) 1986-12-11
ZA774771B (en) 1978-06-28
BE861736A (fr) 1978-06-12
US4197433A (en) 1980-04-08
DE2757437A1 (de) 1978-07-06

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Legal Events

Date Code Title Description
ST Notification of lapse