| 摘要 |
<p>PURPOSE:To obtain a device with convenience in use suitable for the feeling of an operator by providing externally a turning knob freely turnably in the same direction of the scrolling of display content so as to input a scroll indication signal in the same direction as a turning direction. CONSTITUTION:A turning knob 1 for scroll indication whose direction of turning is made coincident in the direction of scroll indication is equipped with a switch function and so long at it is not operated by the operator, the knob is in a neutral position. In turning the knob 1 clockwise, incrementing is performed by the electric connection with the upper contact 1A arranged and assembled in the keyboard matrix of a keyboard circuit 5 and the line of an LCD display device 2 is incremented sequentially. In turning the knob 1 counter clockwise, decrementing is performed by the electric connection with a lower contact 1B and the line of the LCD display device 2 is decremented sequentially.</p> |
