| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a means not allowing RAM clear processing to be erroneously executed by influence of noise or the like, and allowing reduction of a processing load on a main control board side. <P>SOLUTION: The pinball game machine includes a game control means controlling progress of a game; a signal transmission means emitting a signal; an input port changing into two states of ON/OFF according to the signal emitted from the signal transmission means; and a signal decision means deciding whether or not the signal transmission means has emitted the signal based on the ON/OFF state in the input port. The signal decision means executes a plurality of pieces of decision processing within a prescribed period, samples the input port a plurality of times in one piece of decision processing, decides that the signal in decision processing timing is ON when the input port is ON a plurality of prescribed times or above, and decides that the signal transmission means has emitted the signal when it is decided that the state of the signal is ON in the plurality of pieces of continuous decision processing. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
