| 摘要 |
PROBLEM TO BE SOLVED: To prevent a fraudulent action regarding token feed. SOLUTION: A game machine includes: a first detection means for changing a detection result in relation to passing of a token at a first position in a token path where fed tokens pass through; a second detection means for changing a detection result in relation to passing of a token at a second position more on the downstream side than the first position; a third detection means for changing a detection result in relation to passing of a token at a third position more on the downstream side than the second position; a fourth detection means for changing a detection result in relation to passing of a token at a fourth position more on the downstream side than the third position; and a determination means for determining that a token has normally passed through the token path when the detection results of the first and second detection means are in a predetermined normal relation, and the detection results of the third and fourth detection means are in a predetermined second normal relation within the stipulated period of time after the change of the detection result of the second detection means. COPYRIGHT: (C)2011,JPO&INPIT
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