| 摘要 |
PROBLEM TO BE SOLVED: To enable a subcontrol board to recognize that the initial values of random numbers are updated in the main control board. SOLUTION: The main control board 201 and the subcontrol board 202, respectively, have "initial value updating type random number generation parts 304a and 304b, and 709a and 709b" with the same mechanism of generating random numbers. When the winning of a start pocket 122 with game balls is detected, the main control board 201 acquires the random numbers generated by the random number generation parts 304a and 304b and outputs a performance command pertaining to the random numbers acquired. The subcontrol board 202 estimates the random numbers acquired by the random number generation parts 304a and 304b from the performance command. Then, the subcontrol board 202 compares the random numbers estimated with the random numbers generated by the random number generation parts 709a and 709b to determine whether the initial values of the random numbers at the random number generation parts 304a and 304b are altered or not. COPYRIGHT: (C)2009,JPO&INPIT |
