| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a game machine that properly prevent a magnet from being illegally used in a game. <P>SOLUTION: When a door opening/closing detection means detects that an opened door body is closed with respect to a body or a closed door is opened with respect to the body, a predetermined calibration value is set by a setting means, and thereby, every time the state of the door body changes, a predetermined calibration value, which is appropriate for the current magnetic field, can be set. An inappropriate predetermined calibration value can be prevented from being used for calibration by a calibration means, thereby preventing a situation where an illegally applied magnetic field is not detected by a magnetic field detection means, and properly preventing a magnet or the like from being illegally used. <P>COPYRIGHT: (C)2013,JPO&INPIT |
