| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which enables the accurate detection of abnormality in the operation of a mobile accessary. SOLUTION: A blade-shaped accessary 43 is operated following the initialization processing made when power of the game machine 100 is turned on. With the operation of the blade-shaped accessary 43, as a protruded part formed on the rear side of the blade-shaped accessary 43 passes through detection areas 135S of sensors 135a and 135b, detection signals are output respectively from the sensors 135a and 135b. The degree of movement of the blade shaped accessary 43 between both the sensors 135a and 135b is calculated and stored from the detection signals. Thereafter, when the blade-shaped accessary 43 is operated for the performance in a game, the degree of movement of the blade-shaped accessary 43 between both the sensors 135a and 135b thus stored is read out and if the degree of movement of the blade-shaped accessary 43 operated for the performance in the game is larger than that read out, the operation of the blade-shaped accessary 43 is judged to be abnormal. COPYRIGHT: (C)2007,JPO&INPIT
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