| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent fraud on a variable winning device (electric tulip or normal electric accessory). <P>SOLUTION: A failure is determined when a game ball is detected by a specified start detection means in a period where the variable winning device is opened or a period other than the period since the opened variable winning device is closed until a predetermined time elapses. An advantageous state is set where the open time of the variable winning device is longer than that of a normal state. Variable display time in the advantageous state is set to be shorter than the predetermined time. Further, the failure is determined when a game ball is detected by a special winning detection means in a period other than a specified game state. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
