Patent ID: 7460079
Filing Date: 2008-12-02
Classification: G07F

Abstract:
1. A game chip storing data readable by a read device having an antenna which emits electromagnetic waves, the game chip comprising: a circuit for supplying data stored in the circuit to the read device in response to a request from the read device; an antenna connected to the circuit and coupling electromagnetically with the antenna of the read device, to provide electric power to the circuit from the read device, and to supply the stored data to the read device through the antenna of the read device; and an electromagnetic field resonant member for resonant electromagnetic coupling with the antenna of the read device in response to electromagnetic waves received from the read device, wherein, when the game chip is in a stack of a plurality of the game chips and is outside effective communication range of the read device, electric power is provided to the game chip from the read device and data stored in the game chip is supplied to the read device, through the electromagnetic field resonant members of the other game chips in the stack, by electromagnetic coupling of the electromagnetic field resonant members in the stack.