Although a product having such the IC chip has been diffused, information on the product may be capable of being perceived, abstracted, falsified, or the like by a third person with his external device during distribution of the product or after purchase of the product. The front latch circuit is used for receiving a datum and a front latch enabling signal, and generating and outputting an intermediate signal according to the datum and the front latch enabling signal. The pressurized purge unit makes liquid forcibly ejected from the nozzles into the cap. The fibers and DCMs are selected in accordance with a preferred dispersion map, which represents dispersion along the link, such that points of minimum and maximum dispersion have distributions that change in accordance with one another. The probe handler selectively performs one of multiple customizable corrective actions, thereby securing the application until an applicable software patch can be installed.