| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately detect fraudulence in a game machine in which a detection signal from an abnormal magnetism detecting means is input in a game control device and in which a prescribed abnormality responding processing based on the detection signal is executed by the game control device. Ž<P>SOLUTION: The abnormal magnetism detecting means (a magnetism sensor 60) includes a reference magnetic state storing means 62 for storing the magnetic state of the environment in which the game machine is disposed as a reference magnetic state, and an abnormal signal outputting means 64 for comparing the reference magnetic state with the magnetic state at the time and outputting an abnormal signal when the difference out of a prescribed allowable range is detected. The reference magnetic state storing means 62 is configured to start storing the reference magnetic state based on activation of the power supply of the game machine 100. The game control device 30 has an initializing means (the game control device 30) to execute, based on activation of the power supply of the game machine 100, initialization processing of the game control device 30 in parallel as the reference magnetic state storing means 62 executes a processing for storing the reference magnetic state. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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