GB786386A - Improvements in or relating to systems for guarding the transmission of messages - Google Patents

Improvements in or relating to systems for guarding the transmission of messages

Info

Publication number
GB786386A
GB786386A GB24725/55A GB2472555A GB786386A GB 786386 A GB786386 A GB 786386A GB 24725/55 A GB24725/55 A GB 24725/55A GB 2472555 A GB2472555 A GB 2472555A GB 786386 A GB786386 A GB 786386A
Authority
GB
United Kingdom
Prior art keywords
relay
contact
station
signal
transmitter
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
GB24725/55A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB786386A publication Critical patent/GB786386A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
GB24725/55A 1954-09-01 1955-08-29 Improvements in or relating to systems for guarding the transmission of messages Expired GB786386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL337569X 1954-09-01

Publications (1)

Publication Number Publication Date
GB786386A true GB786386A (en) 1957-11-20

Family

ID=19784592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24725/55A Expired GB786386A (en) 1954-09-01 1955-08-29 Improvements in or relating to systems for guarding the transmission of messages

Country Status (7)

Country Link
US (1) US2912484A (OSRAM)
BE (1) BE540952A (OSRAM)
CH (1) CH337569A (OSRAM)
DE (1) DE1019691B (OSRAM)
FR (1) FR1135952A (OSRAM)
GB (1) GB786386A (OSRAM)
NL (2) NL96796C (OSRAM)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486699A (en) * 1945-11-17 1949-11-01 Bell Telephone Labor Inc Channel and transmitter control for telegraph systems
DE905256C (de) * 1951-05-19 1954-03-01 Siemens Ag Schaltungsanordnung zur Kontrolle des richtigen Empfangs von Schaltkennzeichen in Fernmeldeanlagen, z.B. Fernsprechanlagen, insbesondere fuer Kennzeichenuebertragung ueber drahtlose Strecken
US2752414A (en) * 1952-09-16 1956-06-26 Teletype Corp Answer back device for printing telegraph systems

Also Published As

Publication number Publication date
BE540952A (OSRAM)
DE1019691B (de) 1957-11-21
NL96796C (OSRAM)
CH337569A (de) 1959-04-15
FR1135952A (fr) 1957-05-07
NL190456A (OSRAM)
US2912484A (en) 1959-11-10

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