| 摘要 |
PROBLEM TO BE SOLVED: To explain the function of an operation key with a voice when a finger or the like approaches the operation key, and to confirm that the operation is performed and explain the detail action with a voice. SOLUTION: An optical proximity sensor 9 is formed on the back face of a translucent operation key 1 detects that a key operation object 10 such as a finger approaches the operation key 1, and a control signal for the mute of an audio during an operation or the illumination of the operation key part is outputted from a first control signal outputting part 24 in a control part 22. At that time, voice guidance for explaining the function of the key or the danger of the key operation or the like is conducted from a first operation guidance voice outputting part 23. Afterwards, when the operation key 1 is operated by the key operation object 10, this is detected by a control switch 3, and the notice of the actual operation of the key or the detail information of the action of the equipment is outputted form a second operation guidance voice outputting part 25 in the control part 22. Also, an actual equipment operation control signal or the like is outputted from a second control signal outputting part 26.
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