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Bar code reader, bar code reading method and computer readable medium

A barcode reader, barcode technology, used in computer parts, calculations, instruments, etc.

Inactive Publication Date: 2003-04-09
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, it takes a long time to obtain demodulated data based on the continuous reading method, and finally it takes a long time to reproduce the demodulated data corresponding to the entire two-column barcode

Method used

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  • Bar code reader, bar code reading method and computer readable medium
  • Bar code reader, bar code reading method and computer readable medium
  • Bar code reader, bar code reading method and computer readable medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] Embodiments of the present invention will be described below with reference to the drawings.

[0036] First, the structure of the two-level barcode to be read by the barcode reader in the embodiment of the present invention will be described with reference to FIG. 9 . As shown in FIG. 9, the two-level barcode is constituted such that two barcodes are arranged in parallel up and down (WPC code). In this way, each level of barcode (WPC code) includes a start guard bar (SGB) consisting of bars of a fixed pattern on its right, a center bar (CB) made of bars similarly formed with a fixed pattern, and a bar consisting of a fixed pattern. Bars patterned in a similar manner constitute an end guard bar (EGB). In this way, the WPC code has a left data block comprising 6 data character slices (C1-C6) between the start guard bar (SGB) and the end guard bar (EGB), and between the center bar (CB) and the end guard bar ( Right data block of 6 data character slices (C7-C12) between E...

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PUM

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Abstract

A CPU deals, as valid data, with demodulated data obtained by synthesizing demodulated data obtained by reading a first data block of an upper stage with demodulated data obtained by reading a second data block of the upper stage, and demodulated data obtained by synthesizing demodulated data obtained by reading a first data block of a lower stage with demodulated data obtained by reading a second data block of the lower stage, as far as both of the demodulated data obtained by reading the first data block of the upper stage of two column codes structured by arranging WPC codes up and down at two columns and the demodulated data obtained by reading the first data block of the lower stage, contain a portion corresponding to data characters of the second data block, and as far as these sets of demodulated data are different from each other.

Description

technical field [0001] The present invention relates to a barcode reader and a barcode reading method suitable for reading a two-column barcode constituted by arranging barcodes within two columns, and a computer-readable medium for storing a program of such reading processing. Background technique [0002] In recent years, management of products by barcodes has become popular, and POS systems in the sales industry are representative of them. For example, in a store's POS system, information on the category and sales price of goods is coded in the form of a barcode and printed on the goods. The barcode is read at the counter, and payment is made based on the read information. Then, the number of sold commodities is counted in real time, and the counted results are used for inventory management and purchase management. [0003] The above-mentioned barcodes are roughly classified into WPC codes such as JAN codes, UPC codes such as EAN codes, and variable-length second codes....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/00G06K7/10
CPCG06K7/10
Inventor 渡边光雄岩口功佐藤伸一川合弘晃伊藤元彦
Owner FUJITSU LTD