Patent ID: 7479882
Filing Date: 2009-01-20
Classification: G06K

Abstract:
1. A Radio Frequency Identification (RFID) tag security device, comprising: a first layer of conductive material coupled to an item having the RFID tag; wherein the first layer is capable of selectively interfering with a frequency transmission between the RFID tag and a RFID reader when the first layer is disposed in parallel to the RFID tag whereby when the first layer is separated from the RFID tag, the RFID tag is allowed to be read; a second layer of conductive material coupled to the item and positioned to sandwich the RFID tag with the first layer when the item is in a first configuration wherein the first and second layers are coupled to the item so that when the item is in a second configuration the frequency transmission between the reader and the tag is allowed; the conductive material is an electrically conductive material and wherein intefering includes blocking a radio frequency transmission; a spacing layer coupled to at least one of the first layer and the RFID tag, and wherein the spacing layer comprises a ferrite-based material or other material with high magnetic permeability and high resistively.