According to one embodiment, a communication device, which performs communication using a first communication method and a second communication method, converts information to be transmitted into information for forming a pulse that is formed depending on the presence and absence of transmission of a radio wave, according to the first communication method. Each thread can process an event in real-time and each event can pertain to a customer transaction. This avoids an oversizing of the nose gear. This installation requires that various cables also must be installed. The pattern is detected in accordance with a preset threshold, wherein the pattern detection state machine varies the preset threshold in accordance with the received signals.