Game controller

1. A game controller comprising:

a chip communication unit capable of accessing identification information for identifying a game chip used for a game, the identification information being located on the game chip;

a communication connection unit configured to enable data communication with a server including a chip database in which the identification information for identifying the game chip is associated with information used for authenticating the game chip;

a storage unit; and

a control unit, the control unit

downloading the chip database from the server at a predetermined timing and storing the chip database in the storage unit as offline data,

determining whether data communication with the server is possible when the chip communication unit accesses the game chip,

authenticating the game chip with reference to the chip database on the server when data communication with the server is possible, and

authenticating the game chip with reference to the offline data stored in the storage unit when data communication with the server is impossible.

2. The game controller according to claim 1 , further comprising a deal information acquisition unit capable of acquiring deal information of the game chip between a player who plays the game and a dealer who manages the game,

the control unit

determining whether data communication with the server is possible when the deal information acquisition unit acquires the deal information,

sending the deal information to the server when data communication with the server is possible,

accumulating the deal information in the storage unit when data communication with the server is impossible, and

sending accumulated deal information to the server after data communication with the server is restored.

3. The game controller according to claim 1 , further comprising a game result acquisition unit capable of acquiring game result information of the game,

the control unit

determining whether data communication with the server is possible when the game result acquisition unit acquires the game result information,

sending the game result information to the server when data communication with the server is possible,

accumulating the game result information in the storage unit when data communication with the server is impossible, and

sending accumulated game result information to the server after data communication with the server is restored.

4. The game controller according to claim 1 , wherein the chip database includes a last update time, and

the control unit downloads the chip database from the server and stores the chip database in the storage unit as the offline data when, at the predetermined timing, the last update time of the chip database of the server is later than the last update time of the offline data.

5. The game controller according to claim 1 , wherein the control unit

determines whether data communication with the server is possible when additional registration of a new game chip is requested,

when data communication with the server is possible, registers identification information for identifying the new game chip in the server in association with information indicating that the identification information is valid,

when data communication with the server is impossible, stores the identification information for identifying the new game chip in the storage unit in association with information indicating that the identification information is valid, and

notifies the server that accumulated identification information is valid after data communication with the server is restored.