GB/T 27766-2011Two-dimensional barcode - Grid matrix code (English PDF)
二维条码 网格矩阵码
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 30, 2011
Implementation date
May 1, 2012
Scope
GB/T 27766-2011 is the English-translated version of 二维条码 网格矩阵码.
GB/T 27766-2011 is the Chinese standard "Two-dimensional barcode - Grid matrix code".
Its scope clause reads: This standard specifies the symbol structure Grid Matrix Code, the information encoding and decoding method, an error correction encoding and decoding method, an information arrangement method, reference decoding Algorithms and symbolic quality requirements and other technical content.
This standard applies to Grid Matrix Code generation and reading. Its clauses include terms, definitions, abbreviations and conventions.
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Document preview — GB/T 27766-2011
National Standard of the People's Republic of China
- ICS
- 35.040
- Classification
- L 71
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms, definitions, abbreviations and conventions
- 4 Symbol Description
- 7 symbols printed
- 8 character quality
- 9 decoding process
- 10 data transmission
- Appendix A (normative) codeword block parameters C language source code
- Annex B (informative) to optimize the length of the bit stream
- Appendix C (Informative Appendix) GM code printed User Guide
- Annex D (normative) Correction generator polynomial
- Appendix E (normative) reference decoding algorithm
- References
1 Scope
This standard specifies the symbol structure Grid Matrix Code, the information encoding and decoding method, an error correction encoding and decoding method, an information arrangement method, reference decoding
Algorithms and symbolic quality requirements and other technical content.
This standard applies to Grid Matrix Code generation and reading.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 1988 Technical information interchange bit coded character set
GB/T 12905 Tiaoma term
GB 18030 Information technology - Chinese coded character set
GB/T 23704 Information technology - Automatic identification and data capture technology two-dimensional bar code symbol print quality test
ISO /IEC 15424 Information technology - Automatic identification and data capture techniques - Data Carrier Identifiers
AIM International Technical specification extends explanation. Part 1. Identify the programs and Agreement ( "AIMECI norms")
3 Terms, definitions, abbreviations and conventions
3.1 Terms and Definitions
GB/T 12905 and as defined in the following terms and definitions apply to this document.
3.1.1 Correction block
After the error correction code word for grouping a set of codewords.
3.1.2 Border frame
20 outermost unit modules macro module, these cell modules with a dark (low reflectance) or with a light color (high reflectance).
3.1.3 Layer
Surround macroblock center of the ring macro module.
3.1.4 Layer identification number layerIDnumber
Assigned value of the macro module upper left corner of two cell modules, the value based on the error correction level, and number macroblock layer where the determination can be used to refer to
Directions Ming GM codes.
3.1.5 Macroblock macromodule
GM substructure code, the 6 × 6 cells modules.
GB 18030-2022 | GB/T 37036.3-2019 | GB/T 37036.2-2019 | GB/T 42382.3-2026 | GB/T 42382.2-2026 | GB/T 27767-2011 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 47 pages — is available in the English PDF.
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