| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To fixedly keep the times of performance of a display game in a unit time, even when the probability distribution of appearing rates in a plurality of kinds of rendition patterns to be developed in the display game is changed. <P>SOLUTION: A reference value storage means 204 previously stores a reference average time being the reference value of an average rendition time which is obtained by adding the products of the appearing rates by rendition pattern with the rendition times, with respect to the whole rendition patterns. When the probability distribution of the appearing rates allocated to a plurality of rendition patterns is changed, a rendition time changing means 206 changes the rendition time of one or not less than two patterns among a plurality of rendition patterns, so as to allow the average rendition time calculated based on the probability distribution of the appearing rates after change to coincide with the reference average time. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
