A picture coding apparatus includes a motion vector estimation unit and a motion compensation unit. This facilitates the task of the crew when choosing navigation procedure since the plot of the flight plan part corresponding to a navigation procedure is much more expressive than the name of the procedure. In the opened position, the shielding flap is held by the carrier, which allows the taser withdrawing from the storage compartment efficiently. A method of forming a phase change device is also described. In response to detecting the command, the command is processed. The feeding electrode is capacitance-coupled to the radiating electrode for effecting feeding.