| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a dot pattern and a code pattern which allow a plurality of code patterns to be printed in a small area. <P>SOLUTION: In the dot pattern, a first pattern and a second dot pattern are superimposed on each other and arranged. The first and second dot patterns provide a plurality of reference dots in a block region where a predetermined dot is arranged, arrange a plurality of virtual reference points defined by the reference dots, and arrange information dots each having information defined by a distance from a virtual reference point and a direction. Furthermore, as the index of the block, at least a block direction and size are defined by the arrangement of the respective reference dots. The block is arranged so that the reference dots of the first and second dot patterns and/or a part or whole of the virtual reference points are superimposed on each other. The number of blocks may be one or more than one which are repeatedly arranged vertically and horizontally. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
