ISOIEC 18004_2006Cor 1_2009原版完整文件.docx

INTERNATIONALISO/IECSTANDARD18004Second edition2006-09-01Information technology Automatic identification and data capture techniques QR Code 2005 bar code symbology specificationTechnologies de l'information Techniques d'identification automatique et de capture des donnees Specification de la symbologie de code a barres QR Code 2005Reference numberISO/IEC 18004:2006(E)© ISO/IEC 2006ISO/IEC 18004:2006(E)PDF disclaimerThis PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. 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Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandPageContentsForewordviIntroductionvi1 Scope12 Conformance13 Normative references14 Terms and definitions, mathematical and logical symbols, abbreviations and conventions24.1 Terms and definitions24.2 Mathematical and logical symbols 44.3 Abbreviations 44.4 Conventions54.4.1 Module positions54.4.2 Byte notation 54.4.3 Version re ferences 55 Symbol description 55.1 Basic characteristics 55.2 Summary of additional features75.3 Symbol structure 85.3.1 Symbol Versions and sizes95.3.2 Finder pattern 165.3.3 Separator 175.3.4 Timing pattern 175.3.5 Alignment patterns 175.3.6 Encoding region 175.3.7 Quiet zone 176 Requirements 186.1 Encode procedure overview 186.2 Data analysis 206.3 Modes 206.3.1 Extended Channel Interpretation (ECI) mode 206.3.2 Numeric mode 206.3.3 Alphanumeric mode 206.3.4 Byte mode 206.3.5 Kanji mode 216.3.6 Mixing modes 216.3.7 Structured Append mode 216.3.8 FNC1 mode 216.4 Data encoding 226.4.1 Sequence of data 226.4.2 Extended Channel Interpretation (ECI) mode 236.4.3 Numeric mode 256.4.4 Alphanumeric mode 266.4.5 Byte mode 276.4.6 Kanji mode 296.4.7 Mixing modes 306.4.8 FNC1 modes 306.4.9 Terminator 326.4.10 Bit stream to codeword conversion 336.5 Error correction 376.5.1 Error correction capacity 376.5.2 Generating the error correction codewords446.6 Constructing the final message codeword sequence456.7 Codeword placement in matrix466.7.1 Symbol character representation 466.7.2 Function pattern placement 466.7.3 Symbol character placement476.8 Data masking506.8.1 Data mask patterns506.8.2 Evaluation of data masking results 536.9 Format information556.9.1 QR Code symbols556.9.2 Micro QR Code symbols566.10 Version information 577 Structured Append 597.1 Basic principles 597.2 Symbol Sequence Indi cator 597.3 Parity Data 608 Symbol printing and marking 608.1 Dimensions608.2 Human-readable interpretation 608.3 Marking guidelines 619 Symbol qualit y 619.1 Methodology 619.2 Symbol qua lity parameters 619.2.1 Fixed pattern damage 619.2.2 Scan grade and overall symbol grade 619.2.3 Grid non-uniformity 619.3 Process control measurements 6110 Decoding procedure overview 6111 Reference decode algorithm for QR Code 2005 6312 Autodiscrimination capability 6913 Transmitted data 6913.1 General principles 6913.2 Symbology Identifier 6913.3 Extended Ch annel Interpretations 6913.4 FNC1 70Annex A (normative) Error detection and correction generator polynomials71Annex B (normative) Error correction decoding steps76Annex C (normative) Format information 78C.1Error correctionbit calculation 78C. 2Error correctiondecoding steps 78Annex D (normative) Version information 81D. 1Error correctionbit calculation 81D.2Error correctiondecoding steps 81Annex E (normative) Position of alignment patterns 83Annex F (normative) Symbology Identifier 85Annex G (normative) QR Code 2005 print quality - symbology-specific aspects86G.1Fixed Pattern damage86G.1.1Features to be assessed 86G.1.2Fixed Pattern Damage grading 88G.2Grading of additional parameters 89G.2.1Grading of format information 89G.2.2Grading of version information (QR Code symbols)91G.3 Scan grade91Annex H (informative) JIS8 and Shift JIS character sets92Annex I (informative) Symbol encoding examples941.1 General941.2 Encoding a QR Code symbol941.3 Encoding a Micro QR Code symbol96Annex J (informative) Optimisation of bit stream length98J.1General98J.2Optimisation for QR Code symbols99J.3Optimisation for Micro QR Code symbols100J.3.1Optimisation principles 100J.3.2Capacity of Micro QR Code symbols 100Annex K (informative) User guidelines for printing and scanning of QR Code 2005 symbols106K.1General 106K.2User selection of error correction level106AnnexL (informative) Autodiscrimination 108Annex M (informative) Process control techniques 109M.1Symbol Contrast 109M.2Assessing Axial Nonuniformity 109M.3Visual inspection for symbol distortion and defects 109M.4Assessing print growth 110AnnexN (informative) Characteristics of Model 1 symbols 111N.1Model 1 QR Code symbols 111N.1.1Model 1 overall characteristics111N.1.2Symbol versions and sizes 112N.2Detailed specifications 113Bibliography 114© ISO/IEC 2006 All rights reservedvISO/IEC 18004:2006(E)ForewordISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.ISO/IEC 1 8004 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 31, Automatic identification and data capture techniques.This second edition cancels and replaces the first edition (ISO/IEC 18004:2000), which has been technically revised.#© ISO/IEC 2006 All rights reservedISO/IEC 18004:2006(E)IntroductionIt is necessary to distinguish four technically different, but closely related members of the QR Code family, which represent an evolutionary sequence.一 QR Code Model 1 was the original specification for QR Code and is described in AIM International Symbology Specification 97-001. QR Code Model 2 was an enhanced form of the symbology with additional features (primarily the addition of alignment patterns to assist navigation in larger symbols), and was the basis of the first edition of ISO/IEC 18004.一 QR Code 2005 (the basis of this second edition of ISO/IEC 18004) is closely similar to QR Code Model 2 and, in its QR Code format, differs only in the addition of the facility for symbols to appear in a mirror image orientation, for reflectance reversal (light symbols on dark backgrounds) and the option for specifying alternative character sets to the default.一 The Micro QR Code format (also specified in this International Standard), is a variant of QR Code 2005 with a reduced number of overhead modules and a restricted range of sizes, which enables small to moderate amounts of data to be represented in a small symbol, particularly suited to direct marking on parts and components, and to applications where the space available for the symbol is severely restricted.QR Code 2005 is a matrix symbology. The symbols consist of an array of nominally square modules arranged in an overall square pattern, including a unique finder pattern located at three corners of the symbol (in Micro QR Code symbols, at a single corner) and intended to assist in easy location of its position, size and inclination. A wide range of sizes of symbol is provided for, together with four levels of error correction. Module dimensions are user-specified to enable symbol production by a wide variety of techniques.QR Code Model 2 symbols are fully compatible with QR Code 2005 reading systems.Model 1 QR Code symbols are recommended only to be used in closed system applications and it is not a requirement that equipment complying with this International Standard should support Model 1. Since QR Code 2005 is the recommended model for new, open systems application of QR Code, this International Standard describes QR Code 2005 fully, and lists the features in which Model 1 QR Code differs from QR Code 2005 in Annex N.© ISO/IEC 2006 All rights reservedviiISO/IEC 18004:2006(E)Information technology Automatic identification and data capture techniques QR Code 2005 bar code symbology specification1 ScopeThis International Standard defines the requirements for the symbology known as QR Code 2005. It specifies the QR Code 2005 symbology characteristics, data character encoding methods, symbol formats, dimensional characteristics, error correction rules, reference decoding algorithm, production quality requirements, and user-selectable application parameters, and lists in an informative annex the features of QR Code Model 1 symbols which differ from QR Code 2005.2 ConformanceQR Code 2005 symbols (and equipment designed to produce or read QR Code 2005 symbols) shall be considered as conforming with this International Standard if they provide or support the features defined in this International Standard.Symbols complying with the requirements for QR Code Model 1, as defined in ISO/IEC 18004:2000, may not be readable with equipment complying with this International Standard.Symbols complying with the requirements for QR Code Model 2, as defined in ISO/IEC 18004:2000, are readable with equipment complying with this International Standard.Reading equipment complying with ISO/IEC 18004:2000 will not be able to read all symbols complying with this International Standard. Symbols that make use of the additional features of QR Code 2005 will not be readable by such equipment.Printing equipment complying with ISO/IEC 18004:2000 will not be able to print all symbols defined in this International Standard. Symbols that make use of the additional features of QR Code 2005 will not be printable by such equipment.It should be noted, however, that QR Code 2005 is the form of the symbology recommended for new and open systems applications.3 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO/IEC 8859-1:1998, Information technology 8-bit single-byte coded graphic character sets Part 1: Latin alphabet No. 1ISO/IEC 15415, Information technology Automatic identification and data capture techniques Bar code print quality test specification Two-dimensional symbolsISO/IEC 15424, Information technology Automatic identification and data capture techniques Data Carrier Identifiers (including Symbology Identifiers)ISO/IEC 19762-1, Information technology Automatic identification and data capture (AIDC) techniques Harmonized vocabulary Part 1: General terms relating to AIDCISO/IEC 19762-2, Information technology Automatic identification and data capture (AIDC) techniques Harmonized vocabulary Part 2: Optically readable media (ORM)JIS X 0201, 7-bit and 8-bit coded character sets for information interchangeJIS X 0208:1997, 7-bit and 8-bit double byte coded KANJI sets for information interchangeAIM International Technical Specification, Extended Channel Interpretations: Part 1, Identification Schemes and Protocols Part 2, Registration Procedure for Coded Character Sets and Other Data Formats Character S et R egisterAIM International Symbology Specification 97-001, QR CodeGS1 General Specifications, GS14 Terms and definitions, mathematical and logical symbols, abbreviations and conventions4.1 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO/IEC 19762-1 and 19762-2 and the following apply.4.1.1alignment patternfixed reference pattern in defined positions in a matrix symbology, which enables the decode software to resynchronise the coordinate mapping of the image modules in the event of moderate amounts of distortion of the image4.1.2character count indicatorbit sequence which defines the data string length in a mode4.1.3data maskingprocess of XORing the bit pattern in the encoding region with a data mask pattern to provide a symbol with more evenly balanced numbers of dark and light modules, and reduced occurrence of patterns which would interfere with fast processing of the image4.1.4data mask pattern referencethree-bit identifier of the data masking patterns applied to the symbol4.1.5encoding regionregion of the symbol no