| 摘要 |
PURPOSE: An RF(Radio Frequency) coin for game is provided, which controls a resonant frequency by embedding an RF antenna and a chip in a coin for game and also connecting a metallic body to the antenna. CONSTITUTION: An RF(Radio Frequency) circuit part(120) includes an RF antenna(121) and an RF chip(122) on a thin film(123). The RF antenna transmits an ID code frequency according as a resonant frequency is generated in response to an RF signal received from the external. A top and bottom cover(110,112) protect the above RF circuit part. And a metallic member(130) is formed between the top cover and the RF circuit part by being connected to one side of the RF antenna electrically. |
