| 摘要 |
A gaming medium includes a wireless tag on a white side thereof, a wireless tag on a black side thereof and a high magnetic permeability member. Each wireless tag stores information to be read magnetically. The high magnetic permeability member is placed between the wireless tags, prevents a magnetic field from affecting the wireless tag on the black side at a time when the information stored in the wireless tag on the white side is magnetically read from the white side, and prevents a magnetic field from affecting the wireless tag on the white side at a time when the information stored in the wireless tag on the black side is magnetically read from the black side.
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