Abstract: A method to secure RFID card information consisting of a piezo electric element coupled to a transistor which is coupled across the antenna leads of a RFID tag, the transistor provides a short circuit or and open circuit across the antenna leads or antenna input leads of a the RFID chip. The transistor when not energized provides a short circuit on the RFID antenna. When the transistor is energized by a piezo electric element the short circuit is removed and the RFID chip can transfer data normally. Furthermore, the present invention includes a single integrated circuit package, being a single integrated transistor RFID chip package based on the transistor circuit design to operate specifically with a piezo electric element when used with a RFID tag.

Abstract: A method to secure RFID card information consisting of a piezo electric element coupled to a transistor which is coupled across the antenna leads of a RFID tag, the transistor provides a short circuit or and open circuit across the antenna leads or antenna input leads of a the RFID chip. The transistor when not energized provides a short circuit on the RFID antenna. When the transistor is energized by a piezo electric element the short circuit is removed and the RFID chip can transfer data normally. Furthermore, the present invention includes a single integrated circuit package, being a single integrated transistor RFID chip package based on the transistor circuit design to operate specifically with a piezo electric element when used with a RFID tag.

Abstract: A radio-frequency identification (RFID) card includes an RFID element that is adapted to store RFID data information, an antenna, electrically connected at each of two ends to the RFID element, and a piezoelectric element, electrically connected to at least one of the two ends of the antenna, whereby mechanical actuation of the piezoelectric element enables the antenna to be energized by a transmission from an RFID reader terminal, thereby powering the transmission of RFID data information from the RFID element to the RFID reader terminal. An RFID system includes such a card, and an RFID reader terminal.