FR2425678A1 - Lecteur de documents magnetiques entraines a vitesse variable et utilisant notamment un code a barres - Google Patents

Lecteur de documents magnetiques entraines a vitesse variable et utilisant notamment un code a barres

Info

Publication number
FR2425678A1
FR2425678A1 FR7814180A FR7814180A FR2425678A1 FR 2425678 A1 FR2425678 A1 FR 2425678A1 FR 7814180 A FR7814180 A FR 7814180A FR 7814180 A FR7814180 A FR 7814180A FR 2425678 A1 FR2425678 A1 FR 2425678A1
Authority
FR
France
Prior art keywords
reader
characters
compensates
speed
fed past
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.)
Granted
Application number
FR7814180A
Other languages
English (en)
Other versions
FR2425678B1 (fr
Inventor
Philippe Michonneau
Yves Truel
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7814180A priority Critical patent/FR2425678A1/fr
Publication of FR2425678A1 publication Critical patent/FR2425678A1/fr
Application granted granted Critical
Publication of FR2425678B1 publication Critical patent/FR2425678B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/01—Details
    • G06K7/016—Synchronisation of sensing process
    • G06K7/0166—Synchronisation of sensing process by means of clock-signals derived from the code marks, e.g. self-clocking code
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/22—Character recognition characterised by the type of writing
    • G06V30/224—Character recognition characterised by the type of writing of printed characters having additional code marks or containing code marks
    • G06V30/2247—Characters composed of bars, e.g. CMC-7

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Artificial Intelligence (AREA)
  • Character Discrimination (AREA)

Abstract

LECTEUR DE DOCUMENTS MAGNETIQUES, UTILISANT NOTAMMENT LE CODE CMC7, ENTRAINES A VITESSE VARIABLE ET PLUS PARTICULIEREMENT MANUELLEMENT. LE DOCUMENT EST VEHICULE MANUELLEMENT ENTRE DEUX GUIDES ET UN SOCLE, DEVANT UNE TETE DE LECTURE. AU MOYEN D'UN COMPARATEUR 17 ON TRANSCODE LE CODAGE BINAIRE INITIAL EN UN CODAGE EN BASE 4 INSENSIBLE A LA VITESSE D'ENTRAINEMENT CAR BASE SUR LE RAPPORT R DE DEUX SIGNAUX SUCCESSIFS. UN CIRCUIT DE DECODAGE 19 DETECTE LES PARASITES ET RESTITUE LE MESSAGE EN CLAIR. APPLICATION AU TRAITEMENT DE DOCUMENTS BANCAIRES.
FR7814180A 1978-05-12 1978-05-12 Lecteur de documents magnetiques entraines a vitesse variable et utilisant notamment un code a barres Granted FR2425678A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7814180A FR2425678A1 (fr) 1978-05-12 1978-05-12 Lecteur de documents magnetiques entraines a vitesse variable et utilisant notamment un code a barres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7814180A FR2425678A1 (fr) 1978-05-12 1978-05-12 Lecteur de documents magnetiques entraines a vitesse variable et utilisant notamment un code a barres

Publications (2)

Publication Number Publication Date
FR2425678A1 true FR2425678A1 (fr) 1979-12-07
FR2425678B1 FR2425678B1 (fr) 1981-04-10

Family

ID=9208201

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814180A Granted FR2425678A1 (fr) 1978-05-12 1978-05-12 Lecteur de documents magnetiques entraines a vitesse variable et utilisant notamment un code a barres

Country Status (1)

Country Link
FR (1) FR2425678A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515390A1 (fr) * 1980-10-03 1983-04-29 Bradesco Fundacao Dispositif de lecteur lineaire a commande manuelle pour la lecture de caracteres cmc-7 imprimes sur des documents

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854036A (en) * 1974-02-27 1974-12-10 Singer Co Tag reader to digital processor interface circuit
US3887792A (en) * 1973-12-04 1975-06-03 Scope Inc Method and device for reading and decoding a delta-distance code

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887792A (en) * 1973-12-04 1975-06-03 Scope Inc Method and device for reading and decoding a delta-distance code
US3854036A (en) * 1974-02-27 1974-12-10 Singer Co Tag reader to digital processor interface circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515390A1 (fr) * 1980-10-03 1983-04-29 Bradesco Fundacao Dispositif de lecteur lineaire a commande manuelle pour la lecture de caracteres cmc-7 imprimes sur des documents

Also Published As

Publication number Publication date
FR2425678B1 (fr) 1981-04-10

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Legal Events

Date Code Title Description
ST Notification of lapse