A personality module for providing information concerning desired settings for configuring environmental features of a vehicle. The technique allows for varying output voltage at the welding or cutting torch by manipulating the duty cycles of two forward converter circuits. The interconnecting path includes first and second buffers placed substantially on a boundary of the macro, a first interconnection connecting the first position to an input of the first buffer, and a second interconnection connecting an output of the second buffer to the second position. By providing a system with both a disk recording device and a high speed semiconductor recording device, it is possible to realize a smaller time lag and therefore smooth switching from a recorded signal to a real-time signal. The profile of the valley between each pair of adjacent teeth is substantially the same. A layout determining unit determines an optimal interval at which patches are to be arranged on a sheet including a plurality of patches having the same color and the same gradation based on the measurement.