| 摘要 |
PROBLEM TO BE SOLVED: To prevent the read of a radio IC tag of a chip in an area around a certain area trying to read the radio IC tag of a chip in the certain area on a betting board. SOLUTION: Each betting part 3 of the betting board is provided with an antenna 21 for generating a magnetic field for energizing the radio IC tag of a game chip 71 and reading the information of the radio IC tag. When driving the antenna 21 of "A" arranged in the center betting part 3 to generate the magnetic field, the antennas 21 of "B" and "C" arranged in the betting parts 3 on the right and left are short-circuited. COPYRIGHT: (C)2009,JPO&INPIT |
