NO931268L - Fremgangsmaate til dataoverfoering paa telefonlinjer - Google Patents

Fremgangsmaate til dataoverfoering paa telefonlinjer

Info

Publication number
NO931268L
NO931268L NO93931268A NO931268A NO931268L NO 931268 L NO931268 L NO 931268L NO 93931268 A NO93931268 A NO 93931268A NO 931268 A NO931268 A NO 931268A NO 931268 L NO931268 L NO 931268L
Authority
NO
Norway
Prior art keywords
telephone lines
procedure
data transfer
carrier frequency
ltg
Prior art date
Application number
NO93931268A
Other languages
English (en)
Other versions
NO931268D0 (no
Inventor
Rolf Baumeister
Original Assignee
Deutsche Telephonwerk Kabel
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 Deutsche Telephonwerk Kabel filed Critical Deutsche Telephonwerk Kabel
Publication of NO931268D0 publication Critical patent/NO931268D0/no
Publication of NO931268L publication Critical patent/NO931268L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

En fremgangsmåte til dataoverføring på telefonlinjer parallelt med taleoverføringen og med en bærefrekvens som ligger over frekvensen for talebåndet benytter bare en eneste generator (G) til generering av bærefrekvensen som jevnlig forekommer på telefonlinjene (LTG). Dataoverføringen selv styres ved refleksjon av bærefrekvensen på variable avslutningsimpedanser (ZA, ZB) i telefonlinjene (LTG).
NO93931268A 1992-04-04 1993-04-01 Fremgangsmaate til dataoverfoering paa telefonlinjer NO931268L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4211820A DE4211820C1 (de) 1992-04-04 1992-04-04 Verfahren zur Datenübertragung auf Fernsprechleitungen

Publications (2)

Publication Number Publication Date
NO931268D0 NO931268D0 (no) 1993-04-01
NO931268L true NO931268L (no) 1993-10-05

Family

ID=6456401

Family Applications (1)

Application Number Title Priority Date Filing Date
NO93931268A NO931268L (no) 1992-04-04 1993-04-01 Fremgangsmaate til dataoverfoering paa telefonlinjer

Country Status (10)

Country Link
EP (1) EP0564702A3 (no)
CZ (1) CZ368992A3 (no)
DE (1) DE4211820C1 (no)
FI (1) FI931477A (no)
HR (1) HRP930616A2 (no)
HU (1) HUT64167A (no)
NO (1) NO931268L (no)
PL (1) PL298339A1 (no)
SI (1) SI9300165A (no)
SK (1) SK368992A3 (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29605537U1 (de) * 1996-03-14 1997-07-10 Elmeg Gmbh Kommunikationstechnik, 31228 Peine Telekommunikationsanlage

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2047630A1 (de) * 1970-09-28 1972-03-30 Siemens Ag Anordnung zur Bereitstellung eines zusätzlichen Datenkanals auf Fernsprechteilnehmer Anschlußleitungen
US4558316A (en) * 1980-04-10 1985-12-10 Yong Fui K Electrical supervisory control and data acquisition system
DE3427139C2 (de) * 1983-07-28 1986-04-24 Neumann Elektronik GmbH, 4330 Mülheim Einrichtung zur Übertragung von Daten über eine Fernsprechleitung
GB2146509B (en) * 1983-09-10 1986-08-13 Stc Plc Data transmission system
DE3531078C2 (de) * 1985-08-30 1993-10-28 Siemens Ag Datenübertragung außerhalb des Sprachbandes auf Zweidrahtleitungen
DE3534868A1 (de) * 1985-09-30 1987-04-02 Siemens Ag Verfahren zur signal- und datenuebertragung fuer ueber einen zweiadrigen uebertragungskanal angeschlossene komfort-fernsprechstationen
DE3631477C3 (de) * 1986-09-16 1995-01-26 Siegfried Dipl Ing Schwarz Netzwerk für die Steuer-, Meß- und Regeltechnik zur Daten- und Energie-Übertragung
FR2646303B1 (fr) * 1989-04-25 1994-03-18 Alcatel Cit Adaptateur de communication pour terminal de teleaction

Also Published As

Publication number Publication date
CZ368992A3 (en) 1993-11-17
HRP930616A2 (en) 1994-10-31
EP0564702A3 (en) 1995-06-21
SK368992A3 (en) 1995-03-08
FI931477A (fi) 1993-10-05
PL298339A1 (en) 1993-10-18
SI9300165A (sl) 1993-12-31
HU9300794D0 (en) 1993-06-28
EP0564702A2 (de) 1993-10-13
FI931477A0 (fi) 1993-04-01
HUT64167A (en) 1993-11-29
NO931268D0 (no) 1993-04-01
DE4211820C1 (de) 1993-11-18

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