| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology for reliably outputting a state signal indicating deterioration in a state of the presence or absence of game balls in a specific place. <P>SOLUTION: A game machine includes: a ball presence sensor for outputting signals at mutually-different levels corresponding to the presence or absence of the game balls in the specific place on a route where the game balls flow; a first detection part 411 for detecting a first state that the ball presence sensor continuously outputs a signal at a level corresponding to the absence of the game balls for a time exceeding a predetermined time; a second detection part 412 for detecting a second state that the ball presence sensor outputs a signal indicating a state without any game balls a plurality of times within a predetermined period; and an output part 415 for outputting a state signal of the game balls on the basis of the first state detected by the first detection part 411 and/or the second state detected by the second detection part 412. <P>COPYRIGHT: (C)2013,JPO&INPIT |
