The reasons for two-dimensional recognition, including such market motivation and procedures and the recognition of such motivation

摘要

It refers to a program for identifying an article. The purpose of identification can include information about the article and / or its use, including the following stages: defining a letter (AT1, AT2) consists of multiple symbols, each of which has a definition, At least two valid states and at least one invalid state have a reference standard or "patron saint" (P1, P2), which includes a set of symbols of the above letters, at least one representative (P1),If you are already registered, please log in first.