FR2358788A1 - Procede et dispositif pour la transmission et la reception de messages au moyen de lignes telephoniques - Google Patents

Procede et dispositif pour la transmission et la reception de messages au moyen de lignes telephoniques

Info

Publication number
FR2358788A1
FR2358788A1 FR7721663A FR7721663A FR2358788A1 FR 2358788 A1 FR2358788 A1 FR 2358788A1 FR 7721663 A FR7721663 A FR 7721663A FR 7721663 A FR7721663 A FR 7721663A FR 2358788 A1 FR2358788 A1 FR 2358788A1
Authority
FR
France
Prior art keywords
coded
symbols
telephone lines
interconnections
modem
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.)
Withdrawn
Application number
FR7721663A
Other languages
English (en)
Inventor
Marcello Astorri
Sergio Cantaran
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.)
DUINA DATA SYSTEMS SpA
Original Assignee
DUINA DATA SYSTEMS SpA
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 DUINA DATA SYSTEMS SpA filed Critical DUINA DATA SYSTEMS SpA
Publication of FR2358788A1 publication Critical patent/FR2358788A1/fr
Withdrawn legal-status Critical Current

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/05—Electric or magnetic storage of signals before transmitting or retransmitting for changing the transmission rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Facsimiles In General (AREA)
  • Communication Control (AREA)

Abstract

Procédé et dispositif pour la transmission et la réception de messages au moyen de lignes téléphoniques. L'invention est caracterisée en ce qu'on enregistre un message dans une mémoire en codant ses caractères en blocs, en ce qu'on établit une liaison téléphonique entre le lieu d'appel et le lieu de réception, en ce qu'on transmet séquentiellement lesdits blocs sur ladite ligne à une très grande vitesse, en ce qu'on enregistre le pessage dans une mémoire prévue au lieu de réception et en ce qu'on affiche de façon non codée ledit pessage audit lieu de réception. Application à la transmission de messages, d'informations et analogues, par l'intermédiaire de lignes téléphoniques, et à l'affichage non codé des informations reçues.
FR7721663A 1976-07-16 1977-07-13 Procede et dispositif pour la transmission et la reception de messages au moyen de lignes telephoniques Withdrawn FR2358788A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2538876A IT1037751B (it) 1976-07-16 1976-07-16 Metodo di apparecchiatura per la trasmissione e ricezione di messaggi mediante linee telefoniche

Publications (1)

Publication Number Publication Date
FR2358788A1 true FR2358788A1 (fr) 1978-02-10

Family

ID=11216551

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721663A Withdrawn FR2358788A1 (fr) 1976-07-16 1977-07-13 Procede et dispositif pour la transmission et la reception de messages au moyen de lignes telephoniques

Country Status (4)

Country Link
DE (1) DE2732128A1 (fr)
FR (1) FR2358788A1 (fr)
IT (1) IT1037751B (fr)
NL (1) NL7707856A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615019A1 (fr) * 1987-05-07 1988-11-10 Sagem Dispositif de liaison d'un microordinateur personnel a une ligne d'un reseau de telecommunications

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3441132A1 (de) * 1984-11-10 1986-05-15 Sperrsignalbau-Gesellschaft Mbh, 1000 Berlin Anrufverzoegerer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615019A1 (fr) * 1987-05-07 1988-11-10 Sagem Dispositif de liaison d'un microordinateur personnel a une ligne d'un reseau de telecommunications

Also Published As

Publication number Publication date
IT1037751B (it) 1979-11-20
DE2732128A1 (de) 1978-02-16
NL7707856A (en) 1978-01-18

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Legal Events

Date Code Title Description
ST Notification of lapse