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Method for error correction and decoding of two-dimensional code and two-dimensional code device

A two-dimensional code and decoding technology, applied in the field of two-dimensional codes, can solve the problems of increasing the amount of calculation of two-dimensional code decoding, low decoding efficiency, etc., so as to improve efficiency, reduce unnecessary decoding, and reduce the amount of calculation. Effect

Active Publication Date: 2017-10-31
胡建国
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Problems solved by technology

However, during these calculations, it is necessary to calculate the meaningless filling codewords. The calculation of these filling codewords in the decoding process increases the decoding calculation of the entire two-dimensional code, resulting in decoding errors. low efficiency

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  • Method for error correction and decoding of two-dimensional code and two-dimensional code device

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] The two-dimensional code error correction decoding method in the embodiment of the present invention, its main steps include: after the two-dimensional code code words are extracted, perform the two-dimensional code error correction decoding process; when the two-dimensional code error correction decoding process When it is judged that the received code word does not exceed the error correction capability of the two-dimensional code, it enters the accurate tw...

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Abstract

The invention discloses a method of error correction and decoding of a two-dimensional bar code as well as a two-dimensional bar code device. The method comprises the following steps of after two-dimensional bar code words are extracted, carrying out error correction and decoding processes of the two-dimensional bar code; when the received code words are judged to not exceed the error correction capacity of the two-dimensional bar code in the error correction and decoding processes of the two-dimensional bar code, entering an accurate decoding process of the two-dimensional bar code; and otherwise, quitting the decoding process. Through an embodiment of the invention, meaningless filled code words are deleted, so that the calculated amount of each later step can be reduced, and the efficiency of decoding is improved; and the error correction code words are preliminarily judged, and if the error correction code words exceed the error correction capacity of the two-dimensional bar code, a program is exited to prevent the meaningless work.

Description

technical field [0001] The invention relates to the technical field of two-dimensional codes, in particular to a method for error correction and decoding of two-dimensional codes and a two-dimensional code device. Background technique [0002] A two-dimensional bar code (2-dimensional bar code) is a black and white graphic that distributes specific geometric figures on a plane according to certain rules. It is a kind of data symbol information. Two-dimensional codes have many significant advantages, such as high coding density, large information capacity, wide coding range, strong error correction ability, easy production, and low production cost. Due to the above reasons, two-dimensional codes have been widely used in many fields of life, such as logistics, medical and health, transportation, production and so on. [0003] figure 1 It shows the functional schematic diagram of the existing two-dimensional code decoding, which includes the extraction of the original two-dim...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/00G06K19/06
Inventor 胡建国李仕仁谭宇泉白小楠
Owner 胡建国
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