BS ISO/IEC BRITISH STANDARD 24728:2006 Information technology - Automatic identification and data capture techniques - MicroPDF417 bar code symbology Specification ICS 35.040 BSi This doct NO COPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBY COPYRIGHTLAW British Standards BSIS0/IEC24728:2006 National foreword This BritishStandard reproducesverbatimISO/IEC24728:2006and implements itastheUKnational standard. TheUKparticipation initspreparation was entrustedtoTechnical Committee IST/34,Automatic identification and data capture techniques,whichhas the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizationsrepresented on this committeecanbeobtained on request to its secretary. Cross-references The British Standards which implement international publications referred to inthis document maybefound in theBSI Catalogue under the section entitled "International Standards Correspondence Index",or by using the“Search” facility ofthe BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not ofitselfconfer immunity fromlegalobligations. Summary of pages This document comprises a front cover, an insidefront cover,the ISO/IEC title page, pages ii to vii, a blank page, pages 1 to 115 and a back cover. The BSI copyright notice displayed in this document indicates when the documentwas lastissued. This British Standard was Amendmentsissuedsincepublication published under the authority of the Standards Policy and Amd. No. Date Comments Strategy Committee on30June2006 CBSI2006 ment is now 9B1 Th P001 BSISO/IEC24728:2006 INTERNATIONAL ISO/IEC STANDARD 24728 First edition 2006-06-01 Information technologyAutomatic identification and data capture techniguesMicroPDF417barcode symbology specification Referencenumber ISO/IEC24728:2006(E) IEC TSO POOBLIC POOBLI BSISO/IEC24728:2006 Contents Page Foreword.. vi Introduction .. vii 1 Scope. 2 Normative references. 3 Terms and definitions. 4 Symbols,operationsandabbreviatedterms 4.1 Symbols..... 4.2 Mathematicaloperations. 4.3 Abbreviatedterms 5 Requirements....... 5.1 Symbologycharacteristics... 5.1.1 Basic characteristics. 5.1.2 Summaryof additional features 5.2 Symbol structure ... 5.2.1 MicroPDF417symbolparameters 5.2.2 Rowand column combinations... 5.2.3 .10 5.2.4 Codewordsequence.. 5.2.5 MicroPDF417RowAddressPatterns...... 5.3 .14 5.3.1 Symbolcharacterstructure 5.3.2 Start and Stop Patterns. 5.4 High level (data) encodation. 15 5.4.1 Functioncodewords..... 5.4.2 TextCompactionmode 21 5.4.3 ByteCompaction mode. 25 5.4.4 Numeric Compactionmode 5.4.5 Advicetoselecttheappropriatecompactionmode 5.4.6 TreatmentofMicroPDF417reservedcodewords.... .29 5.5 Extended Channel Interpretation... 29 5.5.1 Encoding the Ecl assignment number...... 5.5.2 Pre-assigned and default Extended Channel Interpretations.. ..31 5.5.3 EncodingEclsequenceswithincompactionmodes 31 5.5.4 Post-decodeprotocol.. .33 5.6 Determining the codeword sequence.. 5.7 Error detection and correction.. .34 5.7.1 Number oferrorcorrection codewords... .34 5.7.2 Error correction capacity.... 5.7.3 Defining the error correction codewords.... 5.8 Dimensions. .35 5.8.1 Minimum width of a module (X) .35 5.8.2 Row height (Y....... 5.8.3 Quietzones.. .35 5.9 Defining the symbol format. .35 5.9.1 Defining the aspect ratio of the module ...... 5.9.2 Definingthe symbol matrix of rows and columns 5.10 Generati errorcorrectioncodewords 5.11 level,enc dation .39 Clusters POOBLI ii BSISO/IEC24728:2006 5.11.2 Determining the symbol matrix ......... 5.11.3 DeterminingthevaluesoftheRowAddressPatterns. ..40 5.11.4 Rowencoding.....