| 摘要 |
PROBLEM TO BE SOLVED: To prevent possible damages on the side of the game parlor by detecting the abnormality at the random number generation part of the game machine. SOLUTION: A pachinko game machine PM is constituted of a random number generation circuit B51, clock counting circuits B81-B84, first-fourth counts memory circuits B91-B94, a pattern lottery means B35, a pattern display device 28 for displaying the winning pattern or the loss pattern based on the result of the lottery by the pattern lottery means B35. It also has a clock monitoring circuit B95 which detects whether the input signal from the random number clock generation circuit B51 is the pulse signal or not, an input circuit part B40 which outputs the abnormality signal indicating the generation of the abnormal operation of the random number clock generation circuit B51 when it is detected that the input signal is not the pulse signal and a special game regulation means (CPU 732) which regulates the special game based on the detection of the abnormality signal. COPYRIGHT: (C)2006,JPO&NCIPI
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