| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine capable of surely detecting the change of a state caused by a fraudulent action. SOLUTION: By the game machine of this invention, when the state change in a game machine main body or near the game machine is detected by a state detection means, elapsed time from the detection is measured by a timing means. When a game medium which has passed through a specified area is detected by a specified area passing detection means before the elapsed time timed by the measurement means reaches the time stipulated beforehand, it is determined that the state change detected by the state detection means is a significant change that makes it possible to suspect a fraudulent action by a state determination means. Thus, whether or not the state change in the game machine main body or near the game machine detected by the state detection means is the one with the suspicion of the fraudulent action is surely distinguished. As a result, the state change (for instance, vibrations or impacts) caused by the fraudulent action is surely detected. COPYRIGHT: (C)2008,JPO&INPIT
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