AT190415T - Method and apparatus for decoding a two-dimensional symbol in the spatial domain - Google Patents

Method and apparatus for decoding a two-dimensional symbol in the spatial domain

Info

Publication number
AT190415T
AT190415T AT96117677T AT96117677T AT190415T AT 190415 T AT190415 T AT 190415T AT 96117677 T AT96117677 T AT 96117677T AT 96117677 T AT96117677 T AT 96117677T AT 190415 T AT190415 T AT 190415T
Authority
AT
Austria
Prior art keywords
decoding
apparatus
method
spatial domain
dimensional symbol
Prior art date
Application number
AT96117677T
Other languages
German (de)
Inventor
Joe Zheng
Ming Lei
Original Assignee
United Parcel Service Inc
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 to US08/254,976 priority Critical patent/US5515447A/en
Priority to US30466794A priority
Application filed by United Parcel Service Inc filed Critical United Parcel Service Inc
Publication of AT190415T publication Critical patent/AT190415T/en

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544Methods 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
    • G06K7/10821Methods 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
    • G06K7/1093Methods 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, after transfer of the image of the data-field to an intermediate store, e.g. storage with cathode ray tube
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14Methods 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14Methods 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
    • G06K7/1404Methods for optical code recognition
    • G06K7/1408Methods for optical code recognition the method being specifically adapted for the type of code
    • G06K7/14172D bar codes
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14Methods 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
    • G06K7/1404Methods for optical code recognition
    • G06K7/1439Methods for optical code recognition including a method step for retrieval of the optical code
    • G06K7/1456Methods for optical code recognition including a method step for retrieval of the optical code determining the orientation of the optical code with respect to the reader and correcting therefore
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S379/00Telephonic communications
    • Y10S379/91Bar code or optical character reader with telephone
AT96117677T 1994-06-07 1995-06-01 Method and apparatus for decoding a two-dimensional symbol in the spatial domain AT190415T (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US08/254,976 US5515447A (en) 1994-06-07 1994-06-07 Method and apparatus for locating an acquisition target in two-dimensional images by detecting symmetry in two different directions
US30466794A true 1994-09-09 1994-09-09

Publications (1)

Publication Number Publication Date
AT190415T true AT190415T (en) 2000-03-15

Family

ID=26944350

Family Applications (2)

Application Number Title Priority Date Filing Date
AT95925498T AT169754T (en) 1994-06-07 1995-06-01 Method and device space area to decoding of two-dimensional characters in
AT96117677T AT190415T (en) 1994-06-07 1995-06-01 Method and apparatus for decoding a two-dimensional symbol in the spatial domain

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT95925498T AT169754T (en) 1994-06-07 1995-06-01 Method and device space area to decoding of two-dimensional characters in

Country Status (11)

Country Link
US (1) US6094509A (en)
EP (2) EP0764307B1 (en)
JP (1) JP2771899B2 (en)
AT (2) AT169754T (en)
CA (1) CA2187209C (en)
DE (4) DE69515481T2 (en)
DK (2) DK0766191T3 (en)
ES (2) ES2122656T3 (en)
GR (1) GR3033330T3 (en)
PT (1) PT766191E (en)
WO (1) WO1995034043A1 (en)

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US7942340B2 (en) * 2005-11-24 2011-05-17 Canon Kabushiki Kaisha Two-dimensional code, and method and apparatus for detecting two-dimensional code
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US8212857B2 (en) * 2007-01-26 2012-07-03 Microsoft Corporation Alternating light sources to reduce specular reflection
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Also Published As

Publication number Publication date
EP0764307B1 (en) 1998-08-12
ES2144185T3 (en) 2000-06-01
EP0764307A1 (en) 1997-03-26
DE69504069D1 (en) 1998-09-17
PT766191E (en) 2000-08-31
DK0766191T3 (en) 2000-07-31
US6094509A (en) 2000-07-25
JP2771899B2 (en) 1998-07-02
EP0766191A2 (en) 1997-04-02
CA2187209C (en) 2000-09-05
DE69504069T2 (en) 1998-12-10
CA2187209A1 (en) 1995-12-14
DK764307T3 (en)
GR3033330T3 (en) 2000-09-29
DK0764307T3 (en) 1999-05-10
DE69515481T2 (en) 2000-10-19
EP0766191B1 (en) 2000-03-08
ES2122656T3 (en) 1998-12-16
DE69515481D1 (en) 2000-04-13
AT169754T (en) 1998-08-15
WO1995034043A1 (en) 1995-12-14
JPH10501082A (en) 1998-01-27
EP0766191A3 (en) 1999-01-07

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UEP Publication of translation of european patent specification