Provided is a radio communication base station device which can reduce the number of judgment times for a control signal in a mobile station, thereby suppressing power consumption by the mobile station. The techniques can be implemented to use a new Java Bytecode instruction which is suitable for execution by a Java virtual machine. The method also includes presenting a status panel associated with the installation or removal of the software to a user. The membrane is bonded to the substrate at a predetermined misorientation. The second resistance is regulated in such a way that it is at first smaller than a second limit value and subsequently greater than a second limit value or vice versa.