| 摘要 |
PURPOSE:To reduce the cost without spoiling functions and operability of a console panel by putting a 1st and a 2nd input key in operation with a 3rd key top pressed and performing input operation in another mode. CONSTITUTION:A life-size key 12 consists of a key top arranged straddling an enlargement key 8 and a reduction key 9 between the both. The reduction key 9 consists of a key top 9a and a key switch 9b which is turned ON with the key top 9a pressed and fixed to a key switch substrate 13 (similarly to the enlargement key 8), but the life-size key 12 consists of only the key top part and has no dedicated key switch part. Then when the life-size key 12 is pressed, the enlargement key 8 and reduction key 9 are both pressed at the same time and the key switch 4 of the enlargement key 4 and the key switch 9b of the reduction key 9 are turned ON at the same time; and a software program sets this case as a life-size mode. Namely, the life-size mode is set without providing the lift-size key 12 with any key switch. |
