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US07791483B2 Game system using RFID tags 失效
使用RFID标签的游戏​​系统

Game system using RFID tags
Abstract:
A game can comprise a board with multiple RFID antennas and a game piece with a RFID antenna. When one of the multiple RFID antennas is adjacent to the RFID antenna in the game piece, the response characteristics of these RFID antennas can change so that the position of the game piece can be determined.
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