Patent ID: 8534565

Claim:
A two-dimensional optical identification device for quick decoding, on which at least one two-dimensional optical identification code is arranged, the two-dimensional optical identification code comprising: a first positioning block having a plurality of first positioning points, and the plurality of first positioning points including five first positioning points, in which four first positioning points are located on four corners of a virtual square and one first positioning point is located on a center of the virtual square; a plurality of data blocks placed around the first positioning block, each of the data blocks having a plurality of defined patterns, each defined pattern being selectively positioned in one of a plurality of virtual areas produced by equally dividing the data block; and a second positioning block having a plurality of second positioning points placed at two adjacent boundaries of the plurality of data blocks for defining positions of the plurality of data blocks, wherein one of the second positioning points is defined as a second direction identification point which indicates an identification direction of the two-dimensional optical identification code.