| 摘要 |
<p>The present invention provides a synchronous two-dimensional barcode system with all-around information and the reading method thereof, and they have advantages such as: simple to read, low requirements of synchronization of the scanner, great capability of anti-distortion reading, and etc. This two-dimensional barcode system is consisted of units arranged in matrix, comprising: pairs of information units for vertical synchronization located on two opposite borders of the matrix; pairs of information units for horizontal synchronization located on the other two opposite borders of the matrix; leading information units with shape feature and/ or optical characteristic to mark scanning direction, and the leading information units, the pairs of information units for vertical synchronization and the pairs of information units for horizontal synchronization are located in specifically relative position; and information encoded units located inside the matrix, in which each base point of the unit is located near the crossing of the connecting lines , i.e. a connecting line of the center of a pair of information units for vertical synchronization, and a connecting line of the center of a pair of information units for horizontal synchronization.</p> |
