GB1215745A - Method of and apparatus for the high speed transmission of data on telephone lines - Google Patents

Method of and apparatus for the high speed transmission of data on telephone lines

Info

Publication number
GB1215745A
GB1215745A GB1372868A GB1372868A GB1215745A GB 1215745 A GB1215745 A GB 1215745A GB 1372868 A GB1372868 A GB 1372868A GB 1372868 A GB1372868 A GB 1372868A GB 1215745 A GB1215745 A GB 1215745A
Authority
GB
United Kingdom
Prior art keywords
signal
frequency
data
band
give
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.)
Expired
Application number
GB1372868A
Other languages
English (en)
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 Lucent SAS
Original Assignee
Alcatel 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 Alcatel SA filed Critical Alcatel SA
Publication of GB1215745A publication Critical patent/GB1215745A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
GB1372868A 1967-03-22 1968-03-21 Method of and apparatus for the high speed transmission of data on telephone lines Expired GB1215745A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR99877A FR1529667A (fr) 1967-03-22 1967-03-22 Procédé et dispositif pour la transmission de données à grande vitesse sur lignes téléphoniques

Publications (1)

Publication Number Publication Date
GB1215745A true GB1215745A (en) 1970-12-16

Family

ID=8627398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1372868A Expired GB1215745A (en) 1967-03-22 1968-03-21 Method of and apparatus for the high speed transmission of data on telephone lines

Country Status (5)

Country Link
BE (1) BE712365A (https=)
DE (1) DE1294428B (https=)
FR (1) FR1529667A (https=)
GB (1) GB1215745A (https=)
NL (1) NL145736B (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3681529A (en) * 1970-11-19 1972-08-01 Honeywell Inf Systems Communications apparatus for transmitting and receiving synchronous and asynchronous data

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1227933B (de) * 1964-12-02 1966-11-03 Ibm Deutschland Schaltungsanordnung zur multiplexen UEbertragung von in einem n-stelligen Binaercodedargestellten Daten
FR1437443A (fr) * 1965-01-21 1966-05-06 Trt Telecom Radio Electr Procédé de conditionnement d'informations binaires en vue de leur transmission

Also Published As

Publication number Publication date
BE712365A (https=) 1968-07-31
NL145736B (nl) 1975-04-15
NL6803960A (https=) 1968-09-23
DE1294428B (de) 1969-05-08
FR1529667A (fr) 1968-06-21

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