| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology capable of preventing breakage of media effectively by appropriately managing the cutoff of a power source voltage supplied to media such as an SD card.SOLUTION: A power source unit 7 supplies a prescribed power source voltage to an SD card 53 having a prescribed recording capacity. A control signal is supplied from a CPU 11 to the SD card 53 through a data bus 12. A power source monitoring unit 16 monitors a state of power source voltage supplied from a power source to the SD card 53. Upon detection of a change in the state of the power source voltage, a sequencer 14 cuts off the supply of the control signal by a second relay 20, and cuts off the prescribed power source voltage by a first relay 19 after the cutoff of the control signal.SELECTED DRAWING: Figure 2 |
