The present invention relates to a signal transmission system for inserting a communication signal within an upstream and downstream signal. The signal processing circuit detects a preamble data signal of the read signal. The humidity-dependent antibacterial food storing article is characterized by carrying the humidity-dependent antibacterial powdery composition. The refractive index of the matrix is the same as a refractive index of the semiconductor light-emitting element. , to determine whether the data indicate a likely instance of online fraud. An actuation ring is operably connected to the latching mechanism to select between the engaged and disengaged states.