| 摘要 |
PROBLEM TO BE SOLVED: To provide game machines in which, when a fraudulent action is conducted in any one of the game machines, the game machines installed around the one game machine can be each notified about the fraudulent action without increasing a cost required for the equipment of a game hall. SOLUTION: When the fraudulent action conduced when feeding tokens to a token feeding port 10 is detected, and when an impact is applied to a front surface door 2 and vibrations generated by that are detected by vibration detectors 20A and 20B, the specified sound of a frequency exceeding the upper limit value of an audible frequency range is generated from speakers 18L, 18R and 18B. Also, when the specified sound is captured by microphones 6L and 6R, an image indicating that the fraudulent action is conducted in one slot machine 1 is displayed at a liquid crystal display device 3, also alarm sound is output from the speakers 18L, 18R and 18B, and an upper lamp 19 is made to flicker in a specified pattern. COPYRIGHT: (C)2009,JPO&INPIT
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