SE8004301L - DIGITAL TRANSMISSION EQUIPMENT WITH CODING AND DECODING EQUIPMENT - Google Patents

DIGITAL TRANSMISSION EQUIPMENT WITH CODING AND DECODING EQUIPMENT

Info

Publication number
SE8004301L
SE8004301L SE8004301A SE8004301A SE8004301L SE 8004301 L SE8004301 L SE 8004301L SE 8004301 A SE8004301 A SE 8004301A SE 8004301 A SE8004301 A SE 8004301A SE 8004301 L SE8004301 L SE 8004301L
Authority
SE
Sweden
Prior art keywords
word
repetition
telegram
identity
equipment
Prior art date
Application number
SE8004301A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE448139B (en
Inventor
O Rohmann
Original Assignee
Storno As
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 Storno As filed Critical Storno As
Publication of SE8004301L publication Critical patent/SE8004301L/en
Publication of SE448139B publication Critical patent/SE448139B/en

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
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • 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
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/042—Detectors therefor, e.g. correlators, state machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Error Detection And Correction (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

In systems for transmitting digital data through transmission channels in which bit errors occur, especially in bursts, and which systems are capable of detecting and correcting bit errors and yet maintain the telegram synchronization an excellent telegram acceptance is achieved by providing in said system means for repeating each word at least once, means for Exclusive OR-ing each word or word repetition with each individual part of a predetermined bit pattern having a large autocorrelation coefficient, means for Exclusive OR-ing each word or word repetition with an individual part of said bit pattern during decoding, means for comparing each word with each repetition of said same word until the comparison exhibits identity, and means for accepting such identity as a correctly received telegram and further means for additionally employing recognized identity as a synchronization information.
SE8004301A 1979-06-12 1980-06-09 DIGITAL TRANSMISSION EQUIPMENT WITH CODING AND DECODING EQUIPMENT SE448139B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK243679A DK147535C (en) 1979-06-12 1979-06-12 DIGITAL TRANSMISSION EQUIPMENT WITH CODING AND DECODING EQUIPMENT

Publications (2)

Publication Number Publication Date
SE8004301L true SE8004301L (en) 1980-12-13
SE448139B SE448139B (en) 1987-01-19

Family

ID=8112355

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8004301A SE448139B (en) 1979-06-12 1980-06-09 DIGITAL TRANSMISSION EQUIPMENT WITH CODING AND DECODING EQUIPMENT

Country Status (5)

Country Link
DE (1) DE3022047A1 (en)
DK (1) DK147535C (en)
FR (1) FR2458958A1 (en)
GB (1) GB2052217B (en)
SE (1) SE448139B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2529040B1 (en) * 1982-06-18 1986-04-11 Thomson Csf RADIOCOMMUNICATION SYSTEM WITH FREQUENCY HOPPING, WITH INTER-STAGE REDUNDANCY
FR2587571B1 (en) * 1985-09-18 1993-04-30 France Etat METHOD AND DEVICE FOR TRANSMITTING DIGITAL DATA TO REDUCE THE EFFECTS OF INTERSYMBOLIC DISTORTION
GB2249003A (en) * 1990-10-19 1992-04-22 Stc Plc Data transmission in burst mode
DE19833292A1 (en) * 1998-07-24 2000-01-27 Dornier Medtech Holding Int Gmbh Contactless data communications method involves sending multiple versions of information, storing each version, comparing with other versions, classifying as error-free if all agree
WO2006098498A1 (en) * 2005-03-18 2006-09-21 Nec Electronics Corporation Data transmitting apparatus, data receiving apparatus, communication system, error detection method and program
ITTO20070073A1 (en) * 2007-02-01 2008-08-02 Alenia Aeronautica Spa PROCEDURE AND SYSTEM FOR REMOTE AIRCRAFT CONTROL.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305636A (en) * 1963-05-14 1967-02-21 James E Webb Phase-shift data transmission system having a pseudo-noise sync code modulated with the data in a single channel
US3842399A (en) * 1974-01-02 1974-10-15 Bell Telephone Labor Inc Repetitive byte recognition circuit

Also Published As

Publication number Publication date
FR2458958A1 (en) 1981-01-02
DE3022047A1 (en) 1980-12-18
DK243679A (en) 1980-12-13
FR2458958B1 (en) 1983-08-19
DK147535C (en) 1985-02-25
SE448139B (en) 1987-01-19
DK147535B (en) 1984-09-17
GB2052217A (en) 1981-01-21
GB2052217B (en) 1983-10-05

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