| 摘要 |
PROBLEM TO BE SOLVED: To resolve the problem that an erroneous operation occurs due to difficulty in understanding correspondence between display items and key switches when an input device and a display device are placed separately from each other with respect to an operation terminal which displays display items corresponding to key switches of the input device in 1:1, on the display device and changes a display mode of a display item corresponding to a key switch in response to depression of this key switch. SOLUTION: Key switches with sensors are used which output touch signals showing that they have been touched as key switches and depression signals showing that they have been depressed, and a display mode of a display item corresponding to a key switch is changed when this key switch is touched. Since a user only watches the display device to find a key switch corresponding to a display item, whereby the erroneous operation is eliminated. COPYRIGHT: (C)2008,JPO&INPIT
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