FR2367383A1 - Dispositif et methode pour la detection des erreurs dans les systemes de transmission numerique - Google Patents

Dispositif et methode pour la detection des erreurs dans les systemes de transmission numerique

Info

Publication number
FR2367383A1
FR2367383A1 FR7630230A FR7630230A FR2367383A1 FR 2367383 A1 FR2367383 A1 FR 2367383A1 FR 7630230 A FR7630230 A FR 7630230A FR 7630230 A FR7630230 A FR 7630230A FR 2367383 A1 FR2367383 A1 FR 2367383A1
Authority
FR
France
Prior art keywords
systems
shift registers
error detection
operates
applicable
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.)
Pending
Application number
FR7630230A
Other languages
English (en)
Inventor
Anthony Jessop
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Priority to FR7630230A priority Critical patent/FR2367383A1/fr
Publication of FR2367383A1 publication Critical patent/FR2367383A1/fr
Pending 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
    • H04L1/24—Testing correct operation
    • H04L1/245—Testing correct operation by using the properties of transmission codes
    • H04L1/247—Testing correct operation by using the properties of transmission codes three-level transmission codes, e.g. ternary

Landscapes

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

Abstract

Méthode de contrôle de parité pour système de transmission numérique. Pour permettre la transmission de l'information de contrôle de parité sans accroître la vitesse de transmission du système, l'invention prévoit le remplacement dans l'émetteur d'une combinaison particulière du code de ligne par un mot unique ayant le même nombre de bits et ne faisant pas partie du code. Ce mot peut être une suite de << 0 >> obtenue en bloquant la sortie de registres à décalage 3, 4 traversés par les signaux à transmettre, quand une porte ET 7 détecte la combinaison particulière en même temps qu'elle est commandée par le compteur de parité 6. Application aux systèmes MIC.
FR7630230A 1976-10-08 1976-10-08 Dispositif et methode pour la detection des erreurs dans les systemes de transmission numerique Pending FR2367383A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7630230A FR2367383A1 (fr) 1976-10-08 1976-10-08 Dispositif et methode pour la detection des erreurs dans les systemes de transmission numerique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7630230A FR2367383A1 (fr) 1976-10-08 1976-10-08 Dispositif et methode pour la detection des erreurs dans les systemes de transmission numerique

Publications (1)

Publication Number Publication Date
FR2367383A1 true FR2367383A1 (fr) 1978-05-05

Family

ID=9178504

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7630230A Pending FR2367383A1 (fr) 1976-10-08 1976-10-08 Dispositif et methode pour la detection des erreurs dans les systemes de transmission numerique

Country Status (1)

Country Link
FR (1) FR2367383A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2446570A1 (fr) * 1979-01-09 1980-08-08 Telecommunications Sa Procede et dispositif permettant la transmission simultanee d'un signal numerique et d'une onde basse frequence

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2446570A1 (fr) * 1979-01-09 1980-08-08 Telecommunications Sa Procede et dispositif permettant la transmission simultanee d'un signal numerique et d'une onde basse frequence

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