| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to rapidly and easily output a delicate modulation signal by detecting the state in which operating members constituted to sink into a main body panel sunk by receiving pressing force. SOLUTION: The operating device 4 is so constituted that a main operating part 50 and auxiliary operating part 51 to 53 project by a prescribed amt. from an E-shaped aperture 3 disposed at the front plate 1U of a main body panel 1. The main operating part 50 or the auxiliary operating parts 51 to 53 rotate and move around a shaft 59 and to sink into the main body panel 1 by receiving the pressing force from operator's hands and fingers. Further, the rotational moving quantity of the operating device 4 is detected by a magnet 54 and a Hall element 55. The detection signal of the Hall element 55 is outputted as a digital control signal by an A/D converter, etc. Thereby, the operation method of tracing the operating parts from the front end of the auxiliary operating parts 51 to 53 toward the main operating part 50 with the fingers can be embodied. |
