GB2246225B - Binary bar code reader - Google Patents

Binary bar code reader

Info

Publication number
GB2246225B
GB2246225B GB9111273A GB9111273A GB2246225B GB 2246225 B GB2246225 B GB 2246225B GB 9111273 A GB9111273 A GB 9111273A GB 9111273 A GB9111273 A GB 9111273A GB 2246225 B GB2246225 B GB 2246225B
Authority
GB
United Kingdom
Prior art keywords
bar code
code reader
binary bar
binary
reader
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
GB9111273A
Other versions
GB2246225A (en
GB9111273D0 (en
Inventor
Steven Buckby
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.)
Markem Imaje Industries Ltd
Original Assignee
Prestek 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 GB909012343A external-priority patent/GB9012343D0/en
Application filed by Prestek Ltd filed Critical Prestek Ltd
Priority to GB9111273A priority Critical patent/GB2246225B/en
Publication of GB9111273D0 publication Critical patent/GB9111273D0/en
Publication of GB2246225A publication Critical patent/GB2246225A/en
Application granted granted Critical
Publication of GB2246225B publication Critical patent/GB2246225B/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
    • G06K7/01—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
    • 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
GB9111273A 1990-06-02 1991-05-24 Binary bar code reader Expired - Fee Related GB2246225B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9111273A GB2246225B (en) 1990-06-02 1991-05-24 Binary bar code reader

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909012343A GB9012343D0 (en) 1990-06-02 1990-06-02 Bar code reader
GB9111273A GB2246225B (en) 1990-06-02 1991-05-24 Binary bar code reader

Publications (3)

Publication Number Publication Date
GB9111273D0 GB9111273D0 (en) 1991-07-17
GB2246225A GB2246225A (en) 1992-01-22
GB2246225B true GB2246225B (en) 1994-04-20

Family

ID=26297160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9111273A Expired - Fee Related GB2246225B (en) 1990-06-02 1991-05-24 Binary bar code reader

Country Status (1)

Country Link
GB (1) GB2246225B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0204341A2 (en) * 1985-06-06 1986-12-10 Kabushiki Kaisha Sato Bar code reading method and apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0204341A2 (en) * 1985-06-06 1986-12-10 Kabushiki Kaisha Sato Bar code reading method and apparatus

Also Published As

Publication number Publication date
GB2246225A (en) 1992-01-22
GB9111273D0 (en) 1991-07-17

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Legal Events

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

Effective date: 19950524