A system and method for automatic call segmentation including steps and means for automatically detecting boundaries between utterances in the call transcripts; automatically classifying utterances into target call sections; automatically partitioning the call transcript into call segments; and outputting a segmented call transcript. The control apparatus is constituted by an EOP idling determination unit that determines an idling state of the electric oil pump, and an engine starting processing unit that performs processing to drive the mechanical oil pump by starting the engine in accordance with the determination of the EOP idling determination unit. A noise spectrum information extraction unit extracts noise spectrum information from the target voice elimination signal, and a target voice spectrum information extraction unit extracts target voice spectrum information from the target voice emphasis signal. Both types of data can be obtained swiftly and faults or malfunctions can be recovered from quickly or even prevented in advance. The appliance includes a power rectifier of the motor, an AC voltage circuit, a control voltage circuit, a power supply circuit of the safety devices, an ACDC transformer fitted between the AC voltage circuit and the control voltage circuit to supply power from the AC voltage circuit to the control voltage circuit, and a power shaping circuit.