GB475474A - Improvements in or relating to telegraph exchange systems - Google Patents

Improvements in or relating to telegraph exchange systems

Info

Publication number
GB475474A
GB475474A GB12711/37A GB1271137A GB475474A GB 475474 A GB475474 A GB 475474A GB 12711/37 A GB12711/37 A GB 12711/37A GB 1271137 A GB1271137 A GB 1271137A GB 475474 A GB475474 A GB 475474A
Authority
GB
United Kingdom
Prior art keywords
relay
contact
distortion
contacts
signals
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
GB12711/37A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB475474A publication Critical patent/GB475474A/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
    • H04L25/42—Transmitting circuits; Receiving circuits using mechanical distributors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H04L1/248—Distortion measuring systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/50—Testing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Alarm Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
GB12711/37A 1936-05-01 1937-05-04 Improvements in or relating to telegraph exchange systems Expired GB475474A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1936S0122526 DE694552C (de) 1936-05-01 1936-05-01 Verfahren zur Feststellung des zeitlichen Verlaufs von telegrafischen Zeichen fuer Doppelstrombetrieb
DES122553D DE740114C (de) 1936-05-01 1936-05-05 Einrichtung zur UEberwachung von telegrafischen Verbindungen in Telegrafenvermittlungsanlagen

Publications (1)

Publication Number Publication Date
GB475474A true GB475474A (en) 1937-11-19

Family

ID=41119797

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12711/37A Expired GB475474A (en) 1936-05-01 1937-05-04 Improvements in or relating to telegraph exchange systems

Country Status (4)

Country Link
BE (1) BE421233A (ko)
DE (2) DE694552C (ko)
FR (1) FR821052A (ko)
GB (1) GB475474A (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3335223A (en) * 1962-09-07 1967-08-08 Ericsson Telefon Ab L M Arrangement for automatic equalization of the distortion in data transmission channels

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE603697C (de) * 1933-05-18 1934-10-06 Siemens & Halske Akt Ges Einrichtung zur Feststellung des zeitlichen Verlaufes von telegraphischen Zeichen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3335223A (en) * 1962-09-07 1967-08-08 Ericsson Telefon Ab L M Arrangement for automatic equalization of the distortion in data transmission channels

Also Published As

Publication number Publication date
BE421233A (ko) 1937-05-31
DE740114C (de) 1943-10-12
FR821052A (fr) 1937-11-26
DE694552C (de) 1940-08-03

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