| 摘要 |
PROBLEM TO BE SOLVED: To simplify and minituarize the circuit of a power supply controller and also to reduce the production cost by judging the supply and supply stop of power against respective parts, power supply to which is to be controlled, by detecting an operation control signal from an information processor. SOLUTION: When an image input device 11 receives an image input start instruction, a judging circuit 16 indicates that power supply is made to be an ON state and a power supply control circuit 18 starts power supply to a CCD camera 13a, an A/D converter 13b and a memory 13c. After that, an interface control circuit 15 starts image transmission. When the image input device 11 receives an image input end instruction, the interface control circuit 15 ends image transmission. Then, the judging circuit 16 indicates that power supply is made to be an OFF state and the power supply control circuit 18 ends power supply as against the CCD camera 13a, the A/D converter 13b and the memory 13c. Thus, the circuit is simplified and minituarized, and the production cost can be reduced. |
