GB2301468B - Reading bar codes - Google Patents

Reading bar codes

Info

Publication number
GB2301468B
GB2301468B GB9617589A GB9617589A GB2301468B GB 2301468 B GB2301468 B GB 2301468B GB 9617589 A GB9617589 A GB 9617589A GB 9617589 A GB9617589 A GB 9617589A GB 2301468 B GB2301468 B GB 2301468B
Authority
GB
United Kingdom
Prior art keywords
bar codes
reading bar
reading
codes
bar
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
GB9617589A
Other versions
GB2301468A (en
GB9617589D0 (en
Inventor
Mitsuo Watanabe
Ichiro Shinoda
Shinichi Sato
Isao Iwaguchi
Hiroaki Kawai
Motohiko Itoh
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 JP6169742A external-priority patent/JPH0836619A/en
Priority claimed from JP31874794A external-priority patent/JP3329969B2/en
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority claimed from GB9515099A external-priority patent/GB2291524B/en
Publication of GB9617589D0 publication Critical patent/GB9617589D0/en
Publication of GB2301468A publication Critical patent/GB2301468A/en
Application granted granted Critical
Publication of GB2301468B publication Critical patent/GB2301468B/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
    • G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
    • G06K7/1443—Methods for optical code recognition including a method step for retrieval of the optical code locating of the code in an image
    • 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
    • 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

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)
  • Cash Registers Or Receiving Machines (AREA)
GB9617589A 1994-07-21 1995-07-21 Reading bar codes Expired - Fee Related GB2301468B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6169742A JPH0836619A (en) 1994-07-21 1994-07-21 Bar code reader and method thereof
JP31874794A JP3329969B2 (en) 1994-12-21 1994-12-21 Barcode reading method and barcode reader
GB9515099A GB2291524B (en) 1994-07-21 1995-07-21 Reading bar codes

Publications (3)

Publication Number Publication Date
GB9617589D0 GB9617589D0 (en) 1996-10-02
GB2301468A GB2301468A (en) 1996-12-04
GB2301468B true GB2301468B (en) 1997-01-29

Family

ID=27267826

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9617589A Expired - Fee Related GB2301468B (en) 1994-07-21 1995-07-21 Reading bar codes

Country Status (1)

Country Link
GB (1) GB2301468B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110400152A (en) * 2018-04-17 2019-11-01 鹏鼎控股(深圳)股份有限公司 Quality traceability system for printed circuit board

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9507049B2 (en) 2013-10-04 2016-11-29 Banner Engineering Object sensing using dynamic demodulation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5296691A (en) * 1992-09-14 1994-03-22 Lazerdata Corporation Scanning device for reconstructing a complete code from scanned segments

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110400152A (en) * 2018-04-17 2019-11-01 鹏鼎控股(深圳)股份有限公司 Quality traceability system for printed circuit board

Also Published As

Publication number Publication date
GB2301468A (en) 1996-12-04
GB9617589D0 (en) 1996-10-02

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Legal Events

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

Effective date: 20120721