| 摘要 |
<p>In a docking system in which a personal computer is mounted on a station to expand its ability, data may be erased if the power source of the personal computer is not turned off before mounting or removal. To solve this problem, there are provided a first detecting means (13) for detecting the connection of a personal computer (2) to station (1), a second detecting means (14) for detecting the disconnection of the computer, and a third detecting means (34) for detecting the placed condition. At the time of mounting, the third detecting means (34) detects the mounting condition, whereby the data are saved and the power source of personal computer (2) is turned off and, then, the first detecting means (13) detects the coupled condition, so that the electric power is supplied to the personal computer (2) from a power source unit (18) on the station side. At the time of removal, the second detecting means (14) detects the disconnection of the computer, and the data are saved and the power source is turned off, contributing to improving operability and safety of the docking system.</p> |
