| 摘要 |
PROBLEM TO BE SOLVED: To provide a game stand which does not erroneously judge detection signals illegally outputted from a sensor of an operation switch by emitting radio waves at a prescribed timing as the operation of the operation switch. SOLUTION: In a start lever unit 200, at the time of non-operation, a movable shaft 211 is turned to a roughly horizontal state, a first light shielding part 261 is positioned appropriately above the optical axis for detection of a first start lever sensor 241, a second light shielding part 262 is located at a position to shield the optical axis for the detection of a second start lever sensor 242 respectively, and thus the first start lever sensor 241 is turned OFF and the second start lever sensor 242 is turned ON. At the time of a normal operation when a holding part 210 is operated, the first start lever sensor 261 is changed from OFF to ON and the second start lever sensor 262 is changed from ON to OFF, however, the first and second start lever sensors 241 and 242 are both changed to ON in the case of being irradiated with fraudulent radio waves. Thus, it is discriminated as radio wave cheating. COPYRIGHT: (C)2006,JPO&NCIPI
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