| 摘要 |
A wireless LAN adaptor includes an auto-run program for a connection process, containing a projector identifier for specifying a connection destination. In the process while this auto-run program is executed, an electric field intensity measuring unit measures the electric field intensity of a response radio wave from the wireless projector. The control unit interrupts connection operation and makes the display unit of the PC produce a display for requesting judgment when the electric field intensity is smaller than a predetermined value.
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