| 摘要 |
PROBLEM TO BE SOLVED: To restrain variation in number of prize balls to be put out in the case of a big prize game. SOLUTION: During the period of time from a unit number (10) of game balls enter a variable prize hole until the variable prize hole is closed in this time big prize game, the existence or absence of surplus prize balls is determined based upon the decision of a count signal flag set state in a step S102, and when the presence of surplus prize ball is decided, the number of surplus prize balls is measured based upon the subtraction in a counter N3 in a step S103. In this state, the unit number "10" is set on the counter N3, and according to the subtraction in the counter N3, the number of surplus prize balls is subtracted from the unit number "10" to correct the unit number used in the next big prize round game. Therefore, the surplus prize balls generated in this big prize round game is treated as the prize ball in the next big prize round game, so that when the whole of the big prize game is considered in total, a remarkable variation in number of put-out prize balls is eliminated. COPYRIGHT: (C)2007,JPO&INPIT
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