GB1143746A - Data transmission system for more than two subscribers - Google Patents

Data transmission system for more than two subscribers

Info

Publication number
GB1143746A
GB1143746A GB1126366A GB1126366A GB1143746A GB 1143746 A GB1143746 A GB 1143746A GB 1126366 A GB1126366 A GB 1126366A GB 1126366 A GB1126366 A GB 1126366A GB 1143746 A GB1143746 A GB 1143746A
Authority
GB
United Kingdom
Prior art keywords
data
loop
transmitter
receiver
errors
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
GB1126366A
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.)
Telefunken Patentverwertungs GmbH
Original Assignee
Telefunken Patentverwertungs GmbH
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 Telefunken Patentverwertungs GmbH filed Critical Telefunken Patentverwertungs GmbH
Publication of GB1143746A publication Critical patent/GB1143746A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/14—Arrangements for detecting or preventing errors in the information received by using return channel in which the signals are sent back to the transmitter to be checked ; echo systems
    • 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
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • 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
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0093—Point-to-multipoint

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

1,143,746. Data transmission systems. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 15 March, 1966 [17 March, 1965], No. 11263/66. Heading H4P. In a system in which the same data is transmitted to at least two receivers E and in which errors are corrected by repetition, the receivers E are connected to the transmitter S by one or more transmission lines L which are returned to the transmitter. There may be a plurality of receivers in series on each transmission line loop. Errors in transmission are detected by returning to the transmitter the data from the final receiver on each loop for comparison with the data as originally sent on that loop. Alternatively, the return signal may comprise signals derived from the final receiver, e.g. redundancy signals. Each receiver may correct errors prior to passing the corrected data to the following receiver. If the errors cannot be so corrected the data is deliberately mutilated, to ensure that repetition occurs. The receiving unit of the transmitter may have means to detect correct data on a loop and itself to transmit such correct data to any other loop containing a receiver which detected error in that data, the transmitter being stopped during this action, or may have means to compare corresponding data on each loop and to determine, by majority decision, which loops transmitted correctly.
GB1126366A 1965-03-17 1966-03-15 Data transmission system for more than two subscribers Expired GB1143746A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET0028191 1965-03-17

Publications (1)

Publication Number Publication Date
GB1143746A true GB1143746A (en) 1969-02-26

Family

ID=7553987

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1126366A Expired GB1143746A (en) 1965-03-17 1966-03-15 Data transmission system for more than two subscribers

Country Status (3)

Country Link
BE (1) BE677981A (en)
DE (1) DE1287603B (en)
GB (1) GB1143746A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183975A (en) * 1985-11-22 1987-06-10 Sharp Kk Data error-checking system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1161837B (en) * 1983-05-18 1987-03-18 Telettra Lab Telefon SYSTEM AND EQUIPMENT FOR REMOTE SURVEILLANCE OF DATA TRANSMISSIONS
DE3507237A1 (en) * 1985-03-01 1986-09-04 Philips Patentverwaltung Gmbh, 2000 Hamburg Method for monitoring and for fault localisation for a digital transmission system
GB9022681D0 (en) * 1990-10-18 1990-11-28 British Telecomm Passive optical network

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183975A (en) * 1985-11-22 1987-06-10 Sharp Kk Data error-checking system
GB2183975B (en) * 1985-11-22 1989-10-04 Sharp Kk A system for checking for errors in data transmission
US5051899A (en) * 1985-11-22 1991-09-24 Sharp Kabushiki Kaisha Data transmission error detection in an electronic cash register system

Also Published As

Publication number Publication date
BE677981A (en) 1966-09-01
DE1287603B (en) 1969-01-23

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