Patent ID: 9734446
Date: 2017-08-15
CPC Classifications: G06K,H01Q

Claim:
1. A radio frequency identification (RFID) device comprising an RFID tag, the RFID tag comprising: a receive antenna; a transmit antenna; a plurality of resonators electrically coupled between the receive antenna and the transmit antenna; a dampener configured to selectively and individually dampen resonation of each resonator of the plurality of resonators wherein, prior to dampening of the resonation of one of the resonators using the dampener, the RFID tag is configured to transmit a first response signal from the transmit antenna and, subsequent to dampening of the resonation of the resonator to be dampened using the dampener, the RFID tag is configured to transmit a second response signal that is different from the first response signal from the transmit antenna, wherein the dampener comprises a microencapsulation layer comprising a plurality of microencapsulated particles, and each microencapsulated particle comprising an outer membrane and a chemical agent encapsulated by the outer membrane; a protective layer overlying the microencapsulation layer, wherein the protective layer provides a security overlayer that is configured to damage the microencapsulation layer when tampered with and is further configured to seal the chemical agent within the RFID tag during use; and a registration layer on the protective layer, wherein the registration layer provides indicia regarding a physical location of each of the plurality of resonators such that the physical location of each resonator of the plurality of resonators may be individually identified and each resonator may be individually dampened.