| 摘要 |
PROBLEM TO BE SOLVED: To provide a dot pattern which cannot be visually recognized, with ease and at a low cost.SOLUTION: The dot pattern includes information dots arranged by being shifted by a prescribed interval in an x direction or a y direction from a grid point which is an intersection of virtual grid lines on the virtual grid lines provided at every prescribed interval in the x direction and the y direction. For the dot pattern, by a differential value of values between the adjacent information dots, coordinate information and/or code information within a prescribed area is defined. The dot pattern is printed on a medium such as a printed matter. |
