| 摘要 |
PROBLEM TO BE SOLVED: To efficiently generate a random number hard to estimate its generation rule, by a computer program. SOLUTION: A first count value updating means 140 sequentially updates a first count value. A second count value updating means 144 sequentially updates a second count value. A first intervention means 152 intervenes the updating processing of the first count value at a first periodic timing to increment the first count value. A second intervention means 156 intervenes the updating processing of the first count value at a second periodic timing to increment the first count value. A lottery random number output means 150 outputs the second count value as a random value. When the second value becomes a predetermined value, the second count value updating means 144 sequentially updates the second count value newly using the first count value as an initial value. The respective intervention timings of the first intervention means 154 and the second intervention means 156 are processed so as not to substantially accord with each other. COPYRIGHT: (C)2006,JPO&NCIPI
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