| 摘要 |
The invention provides a physical-characteristic-based RFID tag apparatus which is easy to implement, controllable by a user and capable of enabling privacy protection function as appropriate. According to the invention, there is provided an RFID tag apparatus, comprising: an RFID tag which comprises an antenna and a chip; and a shielding part which is capable of switching between a first state in which it blocks RF signals to or from the RFID tag and a second state in which it does not block RF signals to or from the RFID tag.
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