| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a game machine, in which whether a data line for transmitting decoration control data is in an occupied state can be accurately determined. <P>SOLUTION: The game machine, which includes a game control means of integrally controlling a game and a performance control means capable of controlling performance devices for performing a game, includes a group unit control means of controlling the grouped performance devices, a group general control means of controlling each group unit control means, a timing signal line for transmitting a timing signal, and a data line for bidirectionally transmitting and receiving data. The group unit control means transmits downward data of a predetermined number of bites to the group unit control means at a predetermined interval that will make a second time value, while transmitting a pulse having pulse width that will make a first time value, and if a state in which a predetermined level is maintained in the data line continues for predetermined monitoring time, determines it as an occupied state, and setes the monitoring time to be longer than the first time value and shorter than the second time value. <P>COPYRIGHT: (C)2013,JPO&INPIT |
