| 摘要 |
PROBLEM TO BE SOLVED: To prevent carrying out of games under microcomputers other than normal microcomputers in game machines without requiring extra labor of staffs in charge of the games. SOLUTION: A verification circuit 332 comprises a control circuit 313 which inputs information demand codes for collation (data transmitted from a card unit 50) from a serial-parallel converter 373C to carry out computation while the result of the computation is outputted to the serial-parallel converter 373C, and a memory circuit 314 which stores the expressions for the computation that is applied for the information demand codes for collation and the expressions for encoding the result of the computation received from a main board 31. The control circuit 313 inputs the result of the computation (the data transmitted from a CPU 56 of the main board 31) as verification data from the serial-parallel converter 373D while outputting the data for verification to the serial-parallel converter 373D. The control circuit 313 verifies whether the result of the computation is correct or not when it is sent from the main board 31. COPYRIGHT: (C)2004,JPO
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