| 摘要 |
PROBLEM TO BE SOLVED: To surely detect a fraudulent action to a detection means for detecting a game medium. SOLUTION: A switch for detecting a game ball includes a proximity switch 23a provided on the upstream side of the flow path of game balls and a photosensor 23b provided on the downstream side (or the photosensor 23b provided on the upstream side of the flow path of game balls and the proximity switch 23a provided on the downstream side). That is, the switch includes two switches or sensors of different detection systems. When the number of times of detecting a game ball by the switch or the sensor on the upstream side has a prescribed number larger than the number of times of detecting a game ball by the switch or the sensor on the downstream side, a microcomputer for game control defines that the fraudulent action to the switch is received and performs control for reporting an error. COPYRIGHT: (C)2011,JPO&INPIT |
