| 摘要 |
PROBLEM TO BE SOLVED: To easily acquire information related with the data structure of a target symbol from among various symbols in which data are recorded in different structures. SOLUTION: Definition data indicating the data recording structure of a two-dimensional symbol are attached with unique definition ID, and preserved in a symbol definition data base 25. When a two-dimensional symbol 40 and definition ID 41 displayed at an article are transmitted from a user terminal 44 to a main device 1, the definition data corresponding to the definition ID are transmitted from the main device 1 to the user terminal 44. |
