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BSI 23/30433188 DC:2023 Edition

BSI 23/30433188 DC:2023 Edition

$13.70

BS ISO/IEC 24778. Information technology. Automatic identification and data capture techniques. Aztec Code bar code symbology specification

Published By Publication Date Number of Pages
BSI 2023 59
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PDF Catalog

PDF Pages PDF Title
1 30433188-NC.pdf
3 ISO_IEC DIS 24778 ed.2 – id.82441 Enquiry PDF (en).pdf
8 Foreword
9 Introduction
11 1 Scope
2 Normative references
3 Terms, definitions, symbols and functions
3.1 Terms and definitions
12 3.2 Symbols and functions
3.2.1 Mathematical symbols
3.2.2 Mathematical functions and operations
4 Symbology characteristics
4.1 Basic characteristics
13 4.2 Summary of additional features
14 5 Symbol description
5.1 Basic Aztec Code properties
5.2 Symbol structure
5.2.1 Aztec code layout
17 5.2.2 Core Symbol
5.2.3 Data fields
18 5.3 Symbol character structure and sequence
19 5.4 Symbol size and capacity
20 6 General encodation procedures
21 7 Symbol structure
7.1 Fixed pattern structures
7.1.1 Fixed pattern types
7.1.2 The finder
7.1.3 The orientation bits
7.1.4 The reference grid
7.2 Mode Message encoding and structure
7.2.1 Mode Message
22 7.2.2 Symbol size designator
7.2.3 Message length designator
7.2.4 Error encodation for the Mode Message
7.2.5 Module placement for the Mode Message
23 7.3 Data message encoding and structure
7.3.1 Data Message
7.3.2 Source message encoding
25 7.3.3 Error encodation for the data message
7.3.4 Module placement for the data message
26 8 Structured Append
9 Reader initialization symbols
27 10 Extended Channel Interpretation
10.1 ECI basic information and references
10.2 Encoding ECIs in Aztec Code
10.3 Code sets and ECIs
10.4 ECIs and Structured Append
10.5 Post-decode protocol
28 11 User considerations
11.1 Choice of data and error correction level
11.2 User selection of encoded message
11.3 User selection of minimum error correction level
11.4 User selection of Structured Append
11.5 User selection of optional symbol formats
12 Dimensions
29 13 User guidelines
13.1 Human readable interpretation
13.2 Autodiscrimination capability
13.3 User-defined application parameters
14 Reference decode algorithm
14.1 Reference decode introduction
30 14.2 Finding candidate symbols
14.3 Processing the bullseye image
14.4 Decoding the Core Symbol
14.4.1 Bullseye mapping of module centers
31 14.4.2 Mapping and sampling module centers
14.4.3 Determining video sign and symbol format
14.4.4 Determining symbol orientation and mirror image reversal
14.4.5 Decoding the Mode Message
14.5 Decoding the data message
14.5.1 Mapping the data layers
32 14.5.2 Assembling the codewords
14.5.3 Checking the codewords
14.6 Translating the datawords
14.6.1 Bit stream conversion and interpretation
14.6.2 Creating the data bit stream
14.6.3 Interpreting the bit stream
33 15 Symbol quality
15.1 Quality assessment method
15.2 Symbol quality parameters
15.2.1 Fixed Pattern Damage
15.2.2 Axial nonuniformity
15.2.3 Unused error correction
15.2.4 “Print” Growth
15.2.5 Grid nonuniformity
15.3 Symbol print quality grading
15.3.1 Symbol grade
34 15.4 Additional print Process control measurements
16 Transmitted data
16.1 Basic interpretation
16.2 Protocol for FNC1
16.3 Protocol for ECIs
35 16.4 Symbology identifier
16.5 Transmitted data example
36 Annex€A (normative) Aztec Runes
39 Annex€B (normative) Error detection and correction
42 Annex€C (normative) Topological bullseye search algorithm
46 Annex€D (normative) Linear crystal growing algorithm
47 Annex€E (normative) Fixed Pattern Damage grading
49 Annex€F (normative) Symbology identifiers
50 Annex€G (informative) Aztec Code symbol encoding example
54 Annex€H (informative) Achieving minimum symbol size
57 Annex€I (informative) Useful process control techniques
59 Bibliography

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BSI 23/30433188 DC
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