When temperature is low, a low-temperature mode is selected, followed by the activation of the heating mode functionality 25a of a PCU 25. In one embodiment of the invention, a method for securely sharing TLS session keys with trusted enforcement points can be provided. The drawing device generates the 3D image by applying the coordinate transformation information to the drawing object information. Subsequently, a marking is applied to the optical blank or to a mounting element of the optical blank. Enough chelating agent is added to the chamber to sequester this maximum concentration of hard water ions and the conductivity is measured again. As the transfer control unit selects the method of data transfer based on the data attribute information collected by the attribute collecting unit, it becomes possible for a user or an application program to receive data by the same operation.