High-capacity two-dimensional barcode capable of recording voice message and reader

A two-dimensional barcode and voice information technology, applied in the field of barcodes, can solve problems such as insufficient capacity, inability to freely adjust the size of codeword paper, and limitations in application fields, and achieve the effect of strong error correction and anti-counterfeiting capabilities

A two-dimensional barcode and voice information technology, applied in the field of barcodes, can solve problems such as insufficient capacity, inability to freely adjust the size of codeword paper, and limitations in application fields, and achieve the effect of strong error correction and anti-counterfeiting capabilities

CN101751591AInactive Publication Date: 2010-06-23FUDAN UNIV +1
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  • High-capacity two-dimensional barcode capable of recording voice message and reader
  • High-capacity two-dimensional barcode capable of recording voice message and reader
  • High-capacity two-dimensional barcode capable of recording voice message and reader

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] Record sound information and record it as a Wave format or PCM format sound file;

[0063] The encoding program compresses the sound file into encoding, and then forms a barcode file according to the barcode format;

[0064] The barcode file is a BMP black and white binary image with a width of 0.8cm. The length varies according to the length of the sound and the compression method used, generally between 1cm and 10cm. For example, the CELP method with a code rate of 4.8K is used for sound compression, about The sound of every 1 second corresponds to the barcode length of 1cm;

[0065] Typesetting barcode files, that is, black and white binary BMP images, into books and printing them into books;

[0066] Hand-held barcode reader "swipe" the barcode in the book to restore the sound.

[0067] An implementation of the barcode handheld reader is as follows:

[0068] The processor selects the microprocessor SIC33209 of EPSON Company, which is an ordinary RISC processor wi...

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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. Maxi Code [2] Introduced by Welch Allyn Company of the United States, it can hold up to 3832 numbers or 3067 alphabetic characters or 917 bytes of data. And another American company developed Data Matrix [3] The code is ma...

Claims

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Application Information

Patent Timeline
23 Jun 2010
Publication
CN101751591A
IPC
G06K19/06; G06K7/10
Inventors
吴百锋; 夏拥政