Systems and methods can be used to determine activation information for points along a surface or selected region of interest. If a record start instruction is detected and it is detected that the external device cannot record the video image data on the recording medium thereof, the recording unit starts a process of recording the video image data in the file. A cold raw water compartment is disposed above the heated air conduit and at least a bottom surface of the cold raw water compartment disposed at an angle. In some embodiments, the IGBT circuit module can be switched using an isolated receiver such as a fiber optic receiver.