| 摘要 |
PROBLEM TO BE SOLVED: To provide a slot machine capable of preventing a fraudulent increase in the number of fed disks by fraudulently operating a disk detector. SOLUTION: This game machine is so constituted as to differentiate frequencies of light emission command signals to be transmitted from a pulse selection part 163 to first and second switch transistors 191 and 192 respectively and to selectively change periods of turning on/off the power supply from the first and second switch transistors 161 and 162 to respective light emission parts 142 and 147 according to a frequency of the light emission command signal selected by the pulse selection part 163. COPYRIGHT: (C)2006,JPO&NCIPI
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