The present invention relates to substituted diphenyl heterocycle compounds having an oxadiazole moiety and pharmaceutical compositions thereof that inhibit replication of HCV virus. Such a preparation in which the compounds are either given sequentially or simultaneously can be used for the treatment of pain diminishing the side-effects observed in conventional opioid treatments. Responsive to receiving the interrupt, the interrupt is masked in the interrupt controller to permit another interrupt to be transmitted by the interrupt controller to the processor. A unique scan ID code is associated with the scanning operation and a packet of information assembled that is comprised of the extracted product code and the unique scan ID code to provide a routing packet. The authentication device determines whether the received set of password characters matches a stored set of password characters, measures the time intervals between the packets, and determines whether the measured time intervals match the predefined time intervals.