The RFID tag information communicating device is provided with a cartridge constructed in such a manner that a plurality of RFID circuit elements are stored and can be sequentially taken out therefrom, and an antenna for performing transmitting/receiving operations in a radio communicating operation...http://www.google.com.tw/patents/US7969283?utm_source=gb-gplus-share專利 US7969283 - RFID tag information communicating device