INFORMATION CODE LABEL, AND METHOD FOR DECODING INFORMATION CODE, AND SYSTEM FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To decode a code even when the destruction of a QR code proceeds, and the destructive range is widened. SOLUTION: When the level of destruction of a QR code is very slight, the decoding of this QR code is made available by a Read Solomon(RS) code. Then, data decoded by the RS code are written in the memory of an ID tag attached to the label of the QR code while the damage level of the damaged part of the QR code is still slight. The writing of the decoded data in the ID tag is executed successively as the destruction of the QR code proceeds so that even when the destructive range of the QR code is widened, the decoding of the QR code is made available.