| 摘要 |
PROBLEM TO BE SOLVED: To reduce the economic burdens of a game parlor that introduces an allotted point type game machine, and to solve the problem that communication progresses while data transmitted by a transmission side is not received by a reception side when communication control is resumed.SOLUTION: A CU (card unit) to be connected to an allotted point type P machine (game machine) stores the number of game balls that can be used in the P machine. The P machine transmits information of the number of added balls in accordance with winning or the like and of the number of subtracted balls corresponding to shot balls to the CU every 200 ms. The CU receiving the information updates and stores the number of game balls. In recovery processing after power interruption occurs on the CU side, when a SQN transmitted from the P machine progresses more than a SQN subjected to backup storage in the CU by one, the number of game balls is corrected by using both the preceding number of balls transmitted from the P machine and the current number of balls. |
