Information code, information code producing method, information code reader, and system which uses information code

A system comprising:

• an information code reader which reads an information code, and
• an information code producing apparatus communicably connected to the information code reader, the information code producing apparatus having at least one processor and a memory storing instructions causing the at least one processor to function as:
• a producing section that produces the information code having a code area on a medium, the code area being provided therein with (i) a specific pattern region where a specific pattern of a predetermined shape, including a pattern indicating a position of the code area, is arranged, (ii) a data recording region where data that is decoded is recorded in a plurality of types of cells, and (iii) an image region configured at a position other than the specific pattern region and the data recording region as a region for indicating therein an image different from an image composed of the cells recorded in the data recording region and having a size larger than a size of each of the cells, wherein a location of the image region as defined based on position information showing a position of the image region in the code area is recorded in the data recording region;
• a specific information acquisition section that acquires specific information of a subject or an object, as information recorded in the data recording region, or as information to be correlated to the information recorded in the data recording region;
• a unique image acquisition section that acquires a unique image of the subject or the object, or a unique image for specifying the subject or the object, as information which is indicated in the image region;
• and
• a registration section that:
• (a) registers the specific information acquired by the specific information acquisition section and the unique image acquired by the unique image acquisition section such that the specific information and the unique image are correlated to each other in the registration section and are selectively readable by a predetermined reading process, and (b) checks the mutually-correlated and registered information with a result provided by the information code reader when the information code reader reads the information code;
• and
• a first server communicably connected to the information code reader, the first server having at least one processor and a memory storing instructions causing the at least one processor to function as:
• a determination section that determines whether or not a predetermined analogousness requirement is satisfied by a new unique image that is the unique image newly acquired by the unique image acquisition section and by an already registered unique image that is the unique image registered in the registration prior to the acquisition of the new unique image by the unique image acquisition section,
• wherein the registration section excludes, from registration thereof, the new unique image that is determined by the determination section to satisfy the predetermined analogousness requirement together with the already registered unique image.