| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique which can quickly and certainly sort out incorrect games being performed. SOLUTION: A first detector 105 detects open/close state of a first open/close member against a supporting member, a second detector 106 detects open/close state of a second open/close member against the first detector 105. A control circuit 131 informs a player of a first information mode when detection signals of the first detector show that the first open/close member remains open, it informs the player of a second information mode when detection signals of the second detector 106 show that the second open/close member remains open. COPYRIGHT: (C)2008,JPO&INPIT
|
