Matrix type two-dimensional bar code and its encoding and decoding method

Abstract

The invention discloses a matrix two-dimensional bar code and coding and decoding method, which is characterized by the following: the code graph of bar code is composed of gapless arrangement nxm rectangle unit information blocks, wherein m and n is positive integral more than 1; n is different from or the same as m; each rectangle unit information block is composed of gapless arrangements n'xm' of different optical characters with two rectangle colorful blocks, wherein n' and m' is positive integral more than 1; n' is different from or the same as m'; each rectangle unit information block contains location ID character and data region; the shape of ID character displays L type or inversed L type along two adjacent edges of rectangle unit information block frame. The bar code contains the following characters: large capacity, high error-correcting rate, high pollution-proof and distortion-proof ability, multiple language editing codes, separating coding and decoding code, random scale adjustment and omnibearing recognizing, which can be applied in multiple domains.

Description

technical field [0001] The invention belongs to the technical field of barcodes, and relates to a matrix type two-dimensional barcode and an encoding and decoding method thereof. Background technique [0002] Bar code technology is an automatic identification technology formed in the practice of computer application. It is an emerging technology developed on the basis of computer technology and information technology that integrates coding, printing, identification, data collection and processing. [0003] Since its appearance in the 1970s, one-dimensional barcodes have attracted widespread attention and developed rapidly. They are widely used in the fields of commercial circulation, warehousing, medical care, library information, postal services, railways, transportation, and production automation management. Its use has greatly improved the speed of data collection and information processing, improved work efficiency, and made great contributions to the scientific and mode...

AI Technical Summary

Problems solved by technology

[0006] The key to the inability of two-dimensional barcodes to be widely used in my country is that the core technology has been registered as a patent by foreign manufacturers. Even if we produce and process according to international standards, we must pay considerable patent fees, which restricts the use of this very good technology in our country. the popularity of

The reason is that the foreign two-dimensional barcode technology was introduced only when the two-dimensional barcode technology was urgently needed because the one-dimensional barcode could no longer meet the rapidly growing market informatization needs; It will pay a huge patent fee, just like the DVD technology patent back then, the consequences are serious, so the imported foreign technology can only be defined as a recommended national standard

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