| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To efficiently perform restoration control for the position of a movable performance means operated by rotational drive. <P>SOLUTION: An accessory is rotationally driven through a drive mechanism by a driving motor composed of a stepping motor. At the time of starting a special pattern game by the reception of a special pattern game command, in a fixed case such as the start from a customer waiting state, a restoration control setting processing for the reference position of the accessory is performed. In the restoration control setting processing, the present position of the reference position of the accessory is specified (S401) by the number of driving steps after the reference position of the driving motor is detected and whether or not it is an origin is judged (S402). When it is not the origin, an under-restoration-control flag is set, a restoration control operation is performed (S403) and which one of clockwise rotation and counterclockwise rotation from the present position of the reference position is closer to the origin is judged (S404). Then, the driving data of a rotating direction closer to the origin are set (S405, S406) and the restoration control of the position of the accessory is performed. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
