| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a means which can perceive ON/OFF signals correctly and quickly without being affected by a noise even if the noise is generated in the ON/OFF signals input into a game machine. <P>SOLUTION: The pinball game machine is composed to sample ON/OFF state of an input port for a plurality of times during one interruption processing and to determine that the state is in an ON state when it is ON a plurality of the predetermined times or more. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
