| 摘要 |
PROBLEM TO BE SOLVED: To provide the chip system for games, the game token, the token reception device and the token write-in device which protect the used game tokens from unjust activities. SOLUTION: The integrated circuit token for games and the integrated circuit token for set-up are installed respectively with security flag and they can be judged whether they have been used or not (S15) by referring to the flag condition memorized in ROM (Read-only memory), thus those tokens which are judged to have been used can surely be eliminated (S16, S17). The security flag for the used integrated circuit token is set to be off status (S22, S27). COPYRIGHT: (C)2006,JPO&NCIPI
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