| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a game machine capable of detecting a fraudulent act, where electric waves having a specific frequency are applied.SOLUTION: Game balls are shot one by one at each predetermined time (for example, for each 600 ms). When at least two specific entries (for example, three specific entries) are counted within special time (for example, within 128 ms) equal to or less than the predetermined time, it is determined that the entry of the game ball is fraudulent.</p> |
