GB335935A - Composite signalling system - Google Patents

Composite signalling system

Info

Publication number
GB335935A
GB335935A GB2038629A GB2038629A GB335935A GB 335935 A GB335935 A GB 335935A GB 2038629 A GB2038629 A GB 2038629A GB 2038629 A GB2038629 A GB 2038629A GB 335935 A GB335935 A GB 335935A
Authority
GB
United Kingdom
Prior art keywords
telegraph
transmission
signals
cable
msr
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
GB2038629A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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
Priority to NL30479D priority Critical patent/NL30479C/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2038629A priority patent/GB335935A/en
Priority to DE1930543686D priority patent/DE543686C/de
Priority to FR697064D priority patent/FR697064A/fr
Publication of GB335935A publication Critical patent/GB335935A/en
Expired 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
GB2038629A 1929-07-03 1929-07-03 Composite signalling system Expired GB335935A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL30479D NL30479C (cs) 1929-07-03
GB2038629A GB335935A (en) 1929-07-03 1929-07-03 Composite signalling system
DE1930543686D DE543686C (de) 1929-07-03 1930-04-25 Anlage fuer gleichzeitiges Telegraphieren und Telephonieren, bei der die UEbertragungsrichtung der Sprache gewechselt wird
FR697064D FR697064A (fr) 1929-07-03 1930-06-03 Système électrique pour la transmission combinée de courants de signalisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2038629A GB335935A (en) 1929-07-03 1929-07-03 Composite signalling system

Publications (1)

Publication Number Publication Date
GB335935A true GB335935A (en) 1930-10-03

Family

ID=10145090

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2038629A Expired GB335935A (en) 1929-07-03 1929-07-03 Composite signalling system

Country Status (4)

Country Link
DE (1) DE543686C (cs)
FR (1) FR697064A (cs)
GB (1) GB335935A (cs)
NL (1) NL30479C (cs)

Also Published As

Publication number Publication date
NL30479C (cs)
FR697064A (fr) 1931-01-12
DE543686C (de) 1932-02-09

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