System and method for encoding and decoding large capacity 2-dimensional color bar code which can be color-corrected
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United States of America Patent
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Aug 30, 2011
Grant Date -
Jan 3, 2008
app pub date -
Jan 31, 2005
filing date -
Apr 21, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed herein are a bar code encoding system and a bar code decoding system. The bar code encoding system includes a method for compressing the original data and adding data for error detection and correction to the compressed data to generate a large capacity 2-dimensional color bar code so as to be used as prints in an off-line environment and a large capacity 2-dimensional bar code pattern. The decoding system includes a method for receiving the prints including the 2-dimensional bar code generated by the encoding system through an input device such as a scanner and a camera, searching the 2-dimensional bar code to recognize it, performing color correction and error detection and correction, decompressing the compressed data to decode the original data.
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