| 摘要 |
The menu displays of a base-station device and its data-correlated, portable device are managed. In the base-station device, first icon information corresponding to the menu is displayed on a first display screen. In the portable device, second icon information (corresponding to the first) is displayed on a second display screen. The base-station device has a first storage unit for storing the first icon information, a first display control unit for controlling a first display unit, and a first communication unit for communicating with the portable device. The portable device has a second storage unit for storing the second icon information, a second display control unit for controlling a second display unit, and a second communication unit for communicating with the base-station device and for matching pieces of display data stored in the first and second storage units. Thus, the size of the second icon information is maintained smaller than the size of the first.
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