ISO/IEC INTERNATIONAL STANDARD 16023 First edition 2000-05-01 Information technology International symbology specification MaxiCode Technologies de l'information- Spécification internationale des symboles MaxiCode Reference number ISO/IEC 16023:2000(E) E( @ ISO/IEC 2000 ISO/IEC 16023:2000(E) PDF disclaimer This 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. The ISo Central Secretariat accepts no liability in this area. Adobe is atrademarkof Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by isO member bodies. In the unlikely event @ ISO/IEC2000 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic in the country of the requester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 734 10 79 E-mail [email protected] Web www.iso.ch Printed in Switzerland @ISO/IEC2000-Allrightsreserved ISO/IEC 16023:2000(E) Contents Introduction 1 Scope ... 2 Normative References 3 Definitions and Mathematical Symbols . 3.1 Definitions ... 3.1.1 Codeword 3.1.2 Extended Channel Interpretation (ECI) 3.1.3 Mode Indicator 3.1.4 Module.. 3.2 Mathematical Symbols and Operations . 4 Requirements .... 4.1 Symbology Characteristics , 4.1.1 Basic Characteristics 4.1.2 Summary of Additional Features . 4.2 SymbolDescription... 4.2.1 Symbol Structure . 4.2.2 Symbol Character and Module Sequence . 4.3 4.4 Character Assignments .. 4.4.1 CodewordRepresentation 4.4.2 Default Character Interpretation .. 4.4.3 Code Sets 4.4.4 Symbology Control Characters ... 4.5 User Considerations for Encoding Data in a MaxiCode Symbol . 4.5.1 User Selection of Error Correction Level...... 4.5.2 User Selection of Mode .. 4.5.3 User Selection of Extended Channel Interpretation . 4.5.4 User Selection of Structured Append . 4.5.5 User Assessment of Encodation Capacity 4.6 Extended Channel Interpretation ... 10 4.6.1 ECI and Modes 2 and 3 ... 10 4.6.2 Encodation Modes and ECIs 4.6.3 EncodingECIsinMaxiCode 4.6.4 ECIs and Structured Append 4.6.5 Post-Decode Protocol . 4.7 Message Structure 4.7.1 Primary Message .... 4.7.2 Secondary Message 4.7.3 Structuring the Data .. 4.8 Modes.. 4.8.1 Mode O: Obsolete 12 4.8.2 Model:Obsolete. 12 4.8.3 Modes 2 and 3: Structured Carrier Message 4.8.4 Mode 4: Standard Symbol . 13 4.8.5 Mode5:FullEEC 4.8.6 Mode 6: Reader Programming 4.8.7 Mode Indicators .. 3 atiorhtsreserved ili ISO/IEC 16023:2000(E) 4.9 Structured Append 13 4.9.1Basic Principles 13 4.9.2 Structured Append and Modes 2 and 3 13 4.9.3 Structured Append in Modes 4 to 6... 14 4.9.4Buffered and Unbuffered Operation ... 14 4.10 Error Detection and Correction .... 14 4.10.1 Enhanced Error Correction (EEC) in the Primary Message 14 4.10.2 Error Correction in the Secondary Message .... 14 4.10.3 Generating the Error Correction Codewords . 14 4.10.4 Error Correction Capacity 15 4.11 Dimensions ..... 15 4.11.1 Symbol Dimensions ... 15 4.11.2 Hexagonal Module Dimensions . 15 4.11.3 Dark Hexagon Dimensions and Tolerances 16 4.11.4 Finder Pattern Dimensions 16 4.11.5 Quiet Zones .. 7 4.11.6 Overall Symbol Size 17 4.11.7 Practical Printing Guidance .... 4.12 User Guidelines 4.12.1 Human Readable Interpretation .... 4.12.2 Autodiscrimination Capability.... L 4.13 Symbol Quality .... 17 4.13.1 Obtaining the Test Image 7 4.13.2 Symbol Quality Parameters ... 4.13.3 Overall Symbol Grade .. 19 4.13.4 Process Control Measurements 19 4.14 Re