Patent ID: 11861436
Assignee: ANGEL GROUP CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A management system for a plurality of game token coins that each includes a radio frequency identification (RFID) tag configured to store, as constant information, at least one of production information, product information, casino information, value information, and a serial number of the game token coin, and, as variable information, at least one of location relating information, time relating information, event relating information, and owner relating information, the management system comprising:
a writer;
a reader; and
a management controller;
wherein:
the writer is configured to write the respective variable information of the game token coins to the respective RFID tag of the game token coins;
the reader is configured to:
read the constant information stored in the RFID tag of the plurality of game token coins; and
read the respective variable information stored in the respective RFID tag; and

the management controller configured to, for each of one or more of the game token coins:
determine presence of an abnormality based on the variable information of the respective game token coin; and
generate an error signal in response to presence of a determination of the presence of the abnormality.