A speed change controller is provided on a saddle-ride type vehicle and is suited to manipulation by a foot. Complex multiplier 411 performs a complex multiplication using the received digital baseband signal and the signal delayed by delay circuits 409 and 410. Also a high-voltage self-regulating heating device for operation with supply voltages above 240 volts having first and second layers of material, at least one of which is PTC material interposed between a first electrode and a second electrode. The transcoder proxy receives an electronic document expressed in a first digital format. The wearable electronic device displays movement of the virtual image of the real object to show a task to be completed and detects a completion of the task. The invention further relates to medicaments containing these compounds and to a process for their preparation.