ISO/IEC DIS 20830-2019 pdf download

ISO/IEC DIS 20830-2019 pdf download.Information technology – Automatic identification and data capture techniques – Han Xin Code bar code symbology specification.
ISO/IEC DIS 20830 defines the requirements for the symbology known as Han Xin Code. It specifies the Han Xin Code symbology characteristics, data encoding process, symbol structure, dimensions and print quality requirements, error correction rules, reference decoding algorithm, and user-selectable application parameters.
2 Normative References
The 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 646, Information technology ISO 7-bit coded character set for information interchange
ISO/IEC 19762, Information technology, Automatic identification and data capture (AIDC) techniques
— Harmonized vocabulary
ISO/IEC 15415, Information Technology — Automatic identification and data capture technique — Bar code print quality test specification — Two-dimensional symbols
ISO/IEC 15416, Information technology, Automatic identification and data capture techniques – Bar code print quality test specification – Linear symbols
ISO/IEC 15424, InformatIon technology, Automatic identification and data capture techniques — Data Carrier Identifiers (including Symbology Identifiers)
GS1 General Specifications
3 Terms and definitions, mathematical and logical symbols, abbreviations
3.1 Terms and Definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 19762 and the following apply.
3.1.1 Assistant Alignment Pattern
A non-data pattern located in the perimeter of the Han Xin Code symbol and intended to provide
additional reference points to synchronize modules for reading.
3.1.2 data bit stream
A binary sequence comprised by the information bit stream and the error correction bit stream.
3.1.3 data codeword
Codewords that are used to encode information codewords and error correction codewords.
3.1.4 error correction bit stream
A binary sequence used to correct errors, made by error correction encoding from the information bit stream.
3.1.5 GS1 mode
Encoding mode used to representing GS1 data in Han Xin Code.
3.1.6  URI mode
Encoding mode used to representing Uniform Resource Identifier (URI) described in RFC 3986 in Han Xin Code.ISO/IEC DIS 20830 pdf download.