| 摘要 |
PROBLEM TO BE SOLVED: To prevent fraudulent attempts to be committed onto a game machine linked to the depression of a start switch. SOLUTION: The game machine is provided with a random number extractor 4 which extracts a random number generated at the timing of either rising or falling of a signal of the start switch and an extraction timing selection part 7 which selects the timing of either rising or falling of the signal of the start switch for the timing of extracting a random number with the random number extractor 4 to operate the random extractor from the selection. Which timing is used is properly changed per game to make the random values generated in the lottery hard to predict. COPYRIGHT: (C)2007,JPO&INPIT
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