| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a game machine capable of increasing security strength. <P>SOLUTION: A main control unit includes: an output means for outputting a control command; a first generation means for generating an error inspection value for inspecting validity of the control command; a first determination means for determining whether or not the error inspection value generated by using either of the control commands output last time and last time but one, according to the control command output this time, is added to the control command; and a transmission means for adding the error inspection value, which is based on a determination made by the first determination means, to the control command, which is output this time, so as to transmit the control command with the added error inspection value to a post-control unit via a peripheral unit. The post-control unit includes: a second generation means for generating the error inspection value; a second determination means for determining whether or not the error inspection value generated by using either of the control commands received last time and last time but one is used for this error inspection: and an inspection means for inspecting the validity of the control command transmitted this time, by using the error inspection value transmitted this time and the error inspection value based on a determination made by the second determination means. <P>COPYRIGHT: (C)2012,JPO&INPIT |
