AU5755680A - Bar code reading system - Google Patents

Bar code reading system

Info

Publication number
AU5755680A
AU5755680A AU57556/80A AU5755680A AU5755680A AU 5755680 A AU5755680 A AU 5755680A AU 57556/80 A AU57556/80 A AU 57556/80A AU 5755680 A AU5755680 A AU 5755680A AU 5755680 A AU5755680 A AU 5755680A
Authority
AU
Australia
Prior art keywords
line pattern
line
image aperture
prescribed
scanned
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.)
Abandoned
Application number
AU57556/80A
Inventor
Klaus Wevelsiep
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.)
Scantron & Co Electronische Lesegerate KG GmbH
Original Assignee
SCANTRON GmbH AND CO ELEKTRONISCHE LESEGERATE KG
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 SCANTRON GmbH AND CO ELEKTRONISCHE LESEGERATE KG filed Critical SCANTRON GmbH AND CO ELEKTRONISCHE LESEGERATE KG
Publication of AU5755680A publication Critical patent/AU5755680A/en
Abandoned 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
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10861—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels
    • G06K7/10871—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels randomly oriented data-fields, code-marks therefore, e.g. concentric circles-code
    • 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
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Electromagnetism (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Character Input (AREA)
  • Image Analysis (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Image Processing (AREA)
  • Vending Machines For Individual Products (AREA)
  • Television Systems (AREA)
  • Exposure Control For Cameras (AREA)
  • Cash Registers Or Receiving Machines (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)

Abstract

1. Method of identifying articles, which appear in any position and orientation and at any time at an image aperture and each have a designating area or panel on a surface which is facing the image aperture, which panel comprises symbols (52) in at least one datum track (51) and at least one contrasting line pattern (54), which characterizes the positon and the orientation of the datum track and has a plurality of parallel lines of different spacing and/or line width, in connection with which the image aperture is scanned line by line (60) and a binary video signal corresponding to the scanned contrast line pattern and the following symbols is produced, the image aperture in the first step of the method being scanned at different angles until a prescribed contrasting line pattern is detected, in the second step of the method, the position alignment of the data track relatively to the image aperture is established, and in the third of the method, a grid scanning is effected in the direction of the data track and the symbols are read off and decoded, characterized in that, - for the detection of the constrast line pattern (PIC), the interval lengths of overlapping intervals (Figs. 11 to 14) of the video signal and in each case comprising at least one light-dark region are measured and portrayed in the form of binary counter readings (TC1 to TC4), - that the counter readings (TC1 to TC4, Fig. 6) address a two-dimensional table (Fig. 10) which is stored in a store (28 in Fig. 7) and in which is contained an expectation zone with criteria for a prescribed ratio between two successive interval lengths of the intervals (11 to 14), - that the counter reading (TCN) corresponding to an interval length (IN) addresses one line of the table and the reading corresponding to the following interval length (IN+1) addresses one column of the table, - that a coincidence signal (LPIC1, LPIC2, LPIC3) is produced when the relation of the two respectively following interval lengths lies in a prescribed value range, and - that a recognition signal (PIC OUT Fig. 9) is delivered when a coincidence signal (LPIC1, LPIC2, LPIC3) is produced with a number of successive addressing steps which is prescribed by the contrast line pattern (PIC).
AU57556/80A 1979-04-19 1980-04-17 Bar code reading system Abandoned AU5755680A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2915732253 1979-04-19
DE2915732A DE2915732C2 (en) 1979-04-19 1979-04-19 Method for identifying objects and apparatus for carrying out this method

Publications (1)

Publication Number Publication Date
AU5755680A true AU5755680A (en) 1980-10-23

Family

ID=6068660

Family Applications (1)

Application Number Title Priority Date Filing Date
AU57556/80A Abandoned AU5755680A (en) 1979-04-19 1980-04-17 Bar code reading system

Country Status (11)

Country Link
EP (1) EP0017950B1 (en)
JP (1) JPS5614373A (en)
AT (1) ATE4562T1 (en)
AU (1) AU5755680A (en)
CA (1) CA1151299A (en)
DE (1) DE2915732C2 (en)
DK (1) DK163480A (en)
ES (1) ES8202169A1 (en)
FI (1) FI67633C (en)
IE (1) IE50309B1 (en)
NO (1) NO801128L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039191C2 (en) * 1980-10-17 1984-10-04 Scantron GmbH & Co Elektronische Lesegeräte KG, 6000 Frankfurt Method for identifying objects and device for carrying out the method
JPH07104902B2 (en) * 1986-10-14 1995-11-13 株式会社テック Bar code reader
JP3811680B2 (en) * 2003-01-29 2006-08-23 富士通株式会社 Wiring board manufacturing method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3784792A (en) * 1972-03-29 1974-01-08 Monarch Marking Systems Inc Coded record and methods of and apparatus for encoding and decoding records
DE2338561A1 (en) * 1972-08-30 1974-05-09 Scanner METHOD AND DEVICE FOR IDENTIFYING OBJECTS
US3887792A (en) * 1973-12-04 1975-06-03 Scope Inc Method and device for reading and decoding a delta-distance code
US3891831A (en) * 1973-12-05 1975-06-24 Data General Corp Code recognition apparatus
US3854036A (en) * 1974-02-27 1974-12-10 Singer Co Tag reader to digital processor interface circuit
US3925761A (en) * 1974-08-02 1975-12-09 Ibm Binary reference matrix for a character recognition machine
JPS52143711A (en) * 1976-05-25 1977-11-30 Nippon Telegr & Teleph Corp <Ntt> Mark read-in system by facsimile
US4125765A (en) * 1977-06-27 1978-11-14 International Business Machines Corporation Label find method and circuit

Also Published As

Publication number Publication date
JPS5614373A (en) 1981-02-12
EP0017950A1 (en) 1980-10-29
EP0017950B1 (en) 1983-08-31
ES490712A0 (en) 1982-01-01
ES8202169A1 (en) 1982-01-01
JPS6318783B2 (en) 1988-04-20
NO801128L (en) 1980-10-20
IE800767L (en) 1980-10-19
CA1151299A (en) 1983-08-02
FI67633C (en) 1985-04-10
DK163480A (en) 1980-10-20
FI801195A (en) 1980-10-20
FI67633B (en) 1984-12-31
ATE4562T1 (en) 1983-09-15
IE50309B1 (en) 1986-04-02
DE2915732A1 (en) 1980-10-30
DE2915732C2 (en) 1983-09-29

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