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Two-dimensional code encoding and decoding method, two-dimensional code encoder and two-dimensional code decoder

An encoding method and two-dimensional code technology, applied in the field of terminals and data services, can solve problems such as low accuracy of master code information, and achieve the effect of avoiding mutual interference and improving accuracy.

Active Publication Date: 2014-01-29
CHINA MOBILE COMM GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] An embodiment of the present invention provides a two-dimensional code encoding method and a two-dimensional code encoder, which are used to solve the problem that the accuracy of the main code information obtained by decoding is low due to the two-dimensional code encoding method provided by the prior art

Method used

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  • Two-dimensional code encoding and decoding method, two-dimensional code encoder and two-dimensional code decoder
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  • Two-dimensional code encoding and decoding method, two-dimensional code encoder and two-dimensional code decoder

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Embodiment 1

[0079] Example 1: Encoding process

[0080] In order to visually demonstrate the technical improvement of the two-dimensional code encoding method provided by the embodiment of the present invention, the following briefly introduces the two-dimensional code encoding process in the prior art.

[0081] In the prior art, two-dimensional code encoding is mainly implemented by a two-dimensional code encoder. The two-dimensional code encoder includes an error correction code encoding module, a B / M conversion module and an image generation module. Such as Figure 5a As shown, the error correction code encoding module is used to perform error correction code encoding on the input byte sequence, that is, add redundant information to the source information and then encode it to generate an error correctable byte sequence, wherein the redundant information It is encoded as the error-correctable bytes contained in the error-correctable byte sequence; the B / M conversion module is used to...

Embodiment 2

[0111] Example 2: Decoding process

[0112] In order to visually demonstrate the technical improvement of the two-dimensional code decoding method provided by the embodiment of the present invention, the following briefly introduces the two-dimensional code decoding process in the prior art.

[0113] In the prior art, two-dimensional code decoding is mainly implemented by a two-dimensional code decoder. Such as Figure 6a As shown, the two-dimensional code decoder mainly includes an image scanning module, an M / B conversion module and an error correction code decoding module. Among them, the image scanning module is used to analyze the corresponding data module set according to the two-dimensional code by scanning the two-dimensional code; the M / B conversion module is used to perform the conversion of the data module set (Modules) analyzed by the image scanning module is an error-correctable byte sequence (Bytes); the error-correcting code decoding module is used to perform e...

Embodiment 3

[0139] When the embedded code needs to be encrypted, the encryption operation can be performed on the embedded code source byte sequence to obtain the encrypted embedded code source byte sequence, and then for the encrypted embedded code source byte sequence and the main code source byte sequence Sequentially execute the steps as in Embodiment 1, thus realizing the encryption of the embedded code.

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Abstract

The invention discloses a two-dimensional code encoding method and a two-dimensional code encoder which are used for solving the problem of low accuracy of main code information obtained by decoding by a two-dimensional code encoding method in the prior art. The main code information and embedded code information are encoded into the same two-dimensional code, so that mutual interference of main codes and embedded codes is avoided, and the accuracy of the main code information obtained by subsequently decoding the two-dimensional code is greatly improved. The invention further discloses a two-dimensional code decoding method and a two-dimensional code decoder.

Description

technical field [0001] The invention relates to the field of terminals and data services, in particular to a two-dimensional code encoding and decoding method, a two-dimensional code encoder, and a decoder. Background technique [0002] As a new generation of graphic code technology, two-dimensional codes are quickly popularized and applied because of their fast and convenient reading methods, rich character support, and much higher capacity than barcodes. [0003] At present, the typical two-dimensional code coding standards in the world are shown in Table 1, among which the quick response (QR, Quick Response) code is the most used in China. [0004] Table 1: [0005] [0006] [0007] QR code schematic diagram such as figure 1 As shown, it is a square printing pattern arranged by many small modules organized according to character information from an intuitive point of view. The square area is also called the data area of ​​the QR code, which is formed by the arra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06G06K7/10
Inventor 徐朝
Owner CHINA MOBILE COMM GRP CO LTD
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