| 摘要 |
When a portable communication terminal is being charged by a charger, a control signal according to a command entered into the charger is fed from the charger to the portable communication terminal so that, according to this control signal, the portable communication terminal reads out data from a recording medium. Meanwhile, of the data thus read out, data representing additional information (information such as the duration and title of a piece of music that is added to substantial information) is fed from the portable communication terminal to the charger, and this makes it possible to output the additional information, as by displaying it, on the part of the charger. Thus, the user can read out data from the recording medium by using the portable communication terminal in the middle of being charged without feeling awkward, and in addition can recognize the additional information easily even when the portable communication terminal is being charged.
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