| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine capable of giving an alarm that there is a high possibility of a fraudulent act of increasing a credit number without investing game mediums or the like, and can suppress the occurrence of such fraudulent acts. SOLUTION: This game machine is equipped with an investing speed detecting means (140) for detecting the investing speed comprising the number of game mediums invested per unit time through the medium investing port (18), an investing speed judging means (155) for judging whether the investing speed of the game mediums detected by the investing speed detecting means (140) is a predetermined specified investing speed or higher, or not and an error signal generating means (160) for generating an error signal when the investing speed judging means (155) makes a judgement that the investing speed is the predetermined specified investing speed or higher. COPYRIGHT: (C)2006,JPO&NCIPI
|
