GB1009349A - Telecommunication signalling - Google Patents

Telecommunication signalling

Info

Publication number
GB1009349A
GB1009349A GB3781264A GB3781264A GB1009349A GB 1009349 A GB1009349 A GB 1009349A GB 3781264 A GB3781264 A GB 3781264A GB 3781264 A GB3781264 A GB 3781264A GB 1009349 A GB1009349 A GB 1009349A
Authority
GB
United Kingdom
Prior art keywords
centre
signals
reverted
routes
centres
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
GB3781264A
Inventor
Esmond Phillip Goodwin Wright
Kenneth Stanley Darton
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
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB3781264A priority Critical patent/GB1009349A/en
Priority to DE1965J0028873 priority patent/DE1290960B/en
Publication of GB1009349A publication Critical patent/GB1009349A/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
    • 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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

1,009,349. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. Sept. 16, 1964, No. 37812/64. Heading H4K. A system comprising a number of switching centres includes a network of duplicate signalling channels independent of the message channels with associated processing equipment at each centre for the establishment and supervision of message connections. Thus, a call between centres X, Z employs two signalling channels, e.g. 4-wire, passing over different routes A, B with repeater stations Y. Equalization networks N are provided for the shorter route to allow for different propagation times. Conventional data transmission technique is followed, and the signals of each channel are checked for errors before transmission and on reception. If desired, a parity bit may be included in the transmission. The signals received at Z over the two routes are compared, and if they agree are passed on to the local switching equipment, or, in the case of a transit centre to the next centre. An acknowledgment signal, may be reverted when the signals are accepted, or, alternatively, a repeat signal may be reverted if they are rejected.
GB3781264A 1964-09-16 1964-09-16 Telecommunication signalling Expired GB1009349A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3781264A GB1009349A (en) 1964-09-16 1964-09-16 Telecommunication signalling
DE1965J0028873 DE1290960B (en) 1964-09-16 1965-08-28 Method for signal transmission in telephone and / or telex and / or data switching equipment with common signal channels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3781264A GB1009349A (en) 1964-09-16 1964-09-16 Telecommunication signalling

Publications (1)

Publication Number Publication Date
GB1009349A true GB1009349A (en) 1965-11-10

Family

ID=10399179

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3781264A Expired GB1009349A (en) 1964-09-16 1964-09-16 Telecommunication signalling

Country Status (2)

Country Link
DE (1) DE1290960B (en)
GB (1) GB1009349A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2815183C2 (en) * 1978-04-07 1984-12-06 Hans-Günther 8000 München Stadelmayr Alarm, security and monitoring system
CA1171543A (en) * 1980-01-24 1984-07-24 Billy R. Slater Industrial control system

Also Published As

Publication number Publication date
DE1290960B (en) 1969-03-20

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