INFORMATION CODE, INFORMATION CODE GENERATION METHOD, INFORMATION CODE READER DEVICE, AND INFORMATION CODE USAGE SYSTEM

摘要

A two-dimensional information code (100) is provided. Inside the information code, specification Patten regions, a recording region, and an information addition region are arranged. In the specification pattern region, predetermined-shape specification patterns are arranged. Data expressed by a plurality of types of cells are recorded in the data recording region. Additional information, which is different from the data recorded in the data recording region, can be recorded in the information addition region.