GB2338102B - Method of decoding bar codes and bar code reader - Google Patents

Method of decoding bar codes and bar code reader

Info

Publication number
GB2338102B
GB2338102B GB9920776A GB9920776A GB2338102B GB 2338102 B GB2338102 B GB 2338102B GB 9920776 A GB9920776 A GB 9920776A GB 9920776 A GB9920776 A GB 9920776A GB 2338102 B GB2338102 B GB 2338102B
Authority
GB
United Kingdom
Prior art keywords
code reader
decoding
bar
bar code
codes
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 - Fee Related
Application number
GB9920776A
Other versions
GB2338102A (en
GB9920776D0 (en
Inventor
Hiroaki Kawai
Shinichi Sato
Motohiko Itoh
Mitsuo Watanabe
Isao Iwaguchi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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
Priority claimed from JP33671195A external-priority patent/JP3324374B2/en
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of GB9920776D0 publication Critical patent/GB9920776D0/en
Publication of GB2338102A publication Critical patent/GB2338102A/en
Application granted granted Critical
Publication of GB2338102B publication Critical patent/GB2338102B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G06K7/14—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
    • G06K7/1404—Methods for optical code recognition
    • G06K7/146—Methods for optical code recognition the method including quality enhancement steps
    • G06K7/1486—Setting the threshold-width for bar codes to be decoded
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Printers Characterized By Their Purpose (AREA)
GB9920776A 1995-12-25 1996-12-20 Method of decoding bar codes and bar code reader Expired - Fee Related GB2338102B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33671195A JP3324374B2 (en) 1995-12-25 1995-12-25 Barcode demodulation method and barcode reader
GB9626621A GB2308710B (en) 1995-12-25 1996-12-20 Method of decoding bar codes and bar code reader

Publications (3)

Publication Number Publication Date
GB9920776D0 GB9920776D0 (en) 1999-11-03
GB2338102A GB2338102A (en) 1999-12-08
GB2338102B true GB2338102B (en) 2000-01-26

Family

ID=26310706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9920776A Expired - Fee Related GB2338102B (en) 1995-12-25 1996-12-20 Method of decoding bar codes and bar code reader

Country Status (1)

Country Link
GB (1) GB2338102B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0172727A2 (en) * 1984-08-14 1986-02-26 Ncr Canada Ltd - Ncr Canada Ltee Apparatus and method for sensing bar coded data

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0172727A2 (en) * 1984-08-14 1986-02-26 Ncr Canada Ltd - Ncr Canada Ltee Apparatus and method for sensing bar coded data

Also Published As

Publication number Publication date
GB2338102A (en) 1999-12-08
GB9920776D0 (en) 1999-11-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20151220