| 摘要 |
PROBLEM TO BE SOLVED: To efficiently and smoothly transmit a display performance signal required for realizing various optical performance to respective display devices even when a plurality of sets of display devices are provided in each game machine. SOLUTION: A calling lamp unit 3 and an each-stand top lamp 4 provided at each game machine perform communication between mutually adjacent machines by PWM communication through an input/output device 5 and a communication line 17 for optical flow. The top lamp 4 performs serial communication with a machine of an ID number "1" as a master and the others as slaves through a communication line 16 for illumination. When a first performance condition is formed, an optical flow signal is transmitted through the communication line 17 so that both of the calling lamp unit 3 and the each-stand top lamp 4 may carry out optical flow performance. When a second performance condition is formed, a display performance signal is transmitted through the communication line 17 so that only the each-stand top lamp 4 may carry out the optical performance. COPYRIGHT: (C)2007,JPO&INPIT
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