| 摘要 |
PURPOSE: A signal generating apparatus is provided to operate and display a main unit by controlling a ball with foot to generate a signal. CONSTITUTION: The signal generating apparatus includes a housing(100) having a ball holder, a power supply for supplying a power to a battery or capacitor, a ball(102) engaged to the ball holder, a detector for detecting a motion state of the ball and driven by the ball via a transmitting system, an auxiliary pedal controller(108) for supporting a stepping operation of a foot. The housing has a dividing structure(103) provided to an edge of the ball holder and a needle structure for reducing friction of the ball. |
