Title:
2D-CODE GENERATION METHOD, 2D-CODE GENERATION DEVICE, 2D-CODE READING METHOD, 2D-CODE READING DEVICE, 2D CODE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2015/064334
Kind Code:
A1
Abstract:
A 2D-code generation method characterized by including the following: obtaining a data block containing first data codewords that contain first information and error-correction codewords that can detect and correct errors in the first data codewords; obtaining a post-replacement data block by replacing part of the aforementioned data block with second data codewords that contain second information; and generating a 2D code on the basis of said post-replacement data block. Also, a 2D-code reading method characterized by including the following: reading the aforementioned 2D code; extracting the second data codewords from a prescribed position in the post-replacement data block and obtaining the second information from said second data codewords; and obtaining the first data codewords on the basis of the post-replacement data block and obtaining the first information from said first data codewords.
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Inventors:
NISHIZAKI TSUTAO (JP)
Application Number:
PCT/JP2014/077084
Publication Date:
May 07, 2015
Filing Date:
October 09, 2014
Export Citation:
Assignee:
TOPPAN TDK LABEL CO LTD (JP)
International Classes:
G06K19/06; G06K1/12; G06K7/14
Foreign References:
JP2009009547A | 2009-01-15 | |||
JP2009093443A | 2009-04-30 | |||
JP2006004378A | 2006-01-05 | |||
JP2009093443A | 2009-04-30 | |||
JP2009009547A | 2009-01-15 |
Other References:
See also references of EP 3065088A4
Attorney, Agent or Firm:
ISSHIKI & CO. (JP)
All international patent business corporation (JP)
All international patent business corporation (JP)
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