Large-capacity 2D barcode and reader capable of recording voice information

Abstract

The invention belongs to the barcode technical field and particularly relates to a high-capacity two-dimensional barcode capable of recording voice message and a reader. The two-dimensional barcode consists of graphic matrix codes with the variable quantity, the width of the barcode is the four graphic matrixes regularly, and the length thereof is of the graphic matrix codes with uncertain quantity, so as to form the rectangular shape; each graphic matrix code is composed of a locating point, a correction point and an information area; and the information area comprises an identification area for storing identification information and a data area for storing user data. The two-dimensional barcode can be printed on a piece of common paper in black and white and can record the voice message, and the capacity of the barcode can be changed freely within thousands of words according to the voice message. Based on the invention, a novel voice message access technology and a novel talking book technology can be formed, so that the talking book technology can be realized completely in a form of paper medium, thereby having obvious meaning in the aspects of cost, volume, energy consumption, environmental protection and the like.

Description

technical field [0001] The invention belongs to the technical field of bar codes, and in particular relates to a two-dimensional bar code and a reader capable of recording voice information. Background technique [0002] As a new type of automatic identification, data recording and collection technology, high-density barcode technology is currently being valued worldwide. This automatic identification technology has advantages that other identification technologies cannot replace. It is widely used in publishing, transportation, commerce, and manufacturing industries. , medical and health, storage and other fields have broad application prospects. [0003] Currently the most widely used QR code PDF417 [1] Developed by American Symbol (Symbol) company. MaxiCode [2] It was launched by WelchAllyn Company of the United States and can hold up to 3832 numbers or 3067 alphabetic characters or 917 bytes of data. And another American company developed DataMatrix [3] The code is ...

AI Technical Summary

Problems solved by technology

[0005] However, the two key shortcomings of all the above-mentioned two-dimensional codes still restrict their application fields. First, the capacity is still insufficient to carry large-capacity information including voice information; second, once the codeword format is determined, its carrying The amount of information is also fixed, and the size of the paper area occupied by the codeword cannot be freely adjusted according to the capacity of the recorded information.

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