DE69929572D1 - Verfahren zum Lesen eines zweidimensionalen Strichcode ohne Taktsignal und ohne Ränder - Google Patents

Verfahren zum Lesen eines zweidimensionalen Strichcode ohne Taktsignal und ohne Ränder

Info

Publication number
DE69929572D1
DE69929572D1 DE69929572T DE69929572T DE69929572D1 DE 69929572 D1 DE69929572 D1 DE 69929572D1 DE 69929572 T DE69929572 T DE 69929572T DE 69929572 T DE69929572 T DE 69929572T DE 69929572 D1 DE69929572 D1 DE 69929572D1
Authority
DE
Germany
Prior art keywords
edges
reading
clock signal
bar code
dimensional 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
DE69929572T
Other languages
English (en)
Other versions
DE69929572T2 (de
Inventor
Jangjing Zhou
Daniel P Lopresti
Andrew Tomkins
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69929572D1 publication Critical patent/DE69929572D1/de
Publication of DE69929572T2 publication Critical patent/DE69929572T2/de
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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
    • G06K19/06018—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking one-dimensional coding
    • G06K19/06028—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking one-dimensional coding using bar codes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
    • G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
DE69929572T 1998-06-01 1999-05-28 Verfahren zum Lesen eines zweidimensionalen Strichcode ohne Taktsignal und ohne Ränder Expired - Fee Related DE69929572T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US88189 1987-08-21
US09/088,189 US6201901B1 (en) 1998-06-01 1998-06-01 Border-less clock free two-dimensional barcode and method for printing and reading the same

Publications (2)

Publication Number Publication Date
DE69929572D1 true DE69929572D1 (de) 2006-04-13
DE69929572T2 DE69929572T2 (de) 2006-08-10

Family

ID=22209897

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69929572T Expired - Fee Related DE69929572T2 (de) 1998-06-01 1999-05-28 Verfahren zum Lesen eines zweidimensionalen Strichcode ohne Taktsignal und ohne Ränder

Country Status (7)

Country Link
US (3) US6201901B1 (de)
EP (1) EP0962883B1 (de)
JP (1) JP2000132651A (de)
CN (1) CN1161705C (de)
CA (1) CA2271523A1 (de)
DE (1) DE69929572T2 (de)
HK (1) HK1024550A1 (de)

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Also Published As

Publication number Publication date
US20010005867A1 (en) 2001-06-28
CA2271523A1 (en) 1999-12-01
CN1161705C (zh) 2004-08-11
DE69929572T2 (de) 2006-08-10
HK1024550A1 (en) 2000-10-13
US20010007116A1 (en) 2001-07-05
US6418244B2 (en) 2002-07-09
CN1245944A (zh) 2000-03-01
EP0962883A3 (de) 2002-05-22
EP0962883A2 (de) 1999-12-08
EP0962883B1 (de) 2006-01-25
JP2000132651A (ja) 2000-05-12
US6201901B1 (en) 2001-03-13

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