| 摘要 |
A surface (2) is provided with a two-dimensional position code (4) corresponding to coordinates for positions on the surface in code areas. The position code is unrelated to information to be recorded. The surface allows recording of desired information alternative by reading the position code for a position in the code area associated with the desired information alternative. - Independent claims are also included for the following: - (a) an information recording system; - (b) an information recording product making method; - (c) a storage medium for computer. |
