| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device for a pinball game machine normally controlling a sub-board without using garbled control data for the control of the sub board. SOLUTION: Prize ball number data are sequentially transmitted as 4-bit parallel data from the main board to a delivery board for 2ms. Because prize ball number data are non-transmitted in the next 2ms, '0' data are transmitted. On the other hand, the delivery board receiving the prize ball number data adds 1 to the value of a read counter 83a every time receiving the prize ball number data except for '0'. When the values of the read counter 83a are 4, 5, and 6, the read prize ball number data are written in a first - a third memory respectively. When two or more values are accorded with each other in the three values written in the first - the third memories, the value is determined as the prize ball number data. This constitution can eliminate the use of the garbled prize ball number data so as to normally control the delivery board. COPYRIGHT: (C)2004,JPO
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