Passport shield
View Patent ↗Various switchable RFID devices are disclosed. These switchable RFID devices may include one or more RFID tags and one or more switches. Some of these one or more switches are optionally wireless. In various embodiments, the switchable RFID devices include cellular phones, security devices, identity devices, financial devices, remote controls, and the like. The switchable RFID devices are optionally disposed in a passport.
1. An electronic passport comprising:
a back cover comprising a passive RFID tag, a capacitor and an antenna, the antenna being coupled to the capacitor, the capacitor configured to store energy to power the RFID tag;
a front cover comprising a shield and a surface, the surface including a visual display of personal identifying information, the shield being configured to attenuate a radio frequency signal; and
an integrated circuit including non-volatile memory storing the personal identifying information, wherein the RFID tag is configured to transmit at least a portion of the personal identifying information using a radio frequency signal powered by the capacitor.
2. The passport of claim 1 , wherein the shield includes a mesh.
3. The passport of claim 1 , wherein the shield includes multiple layers of metallic fibers.
4. The passport of claim 1 , wherein the shield includes a wire mesh.
5. The passport of claim 1 , wherein the shield includes metallic thread.
6. The passport of claim 1 , wherein the RFID tag is disposed at least 5 mm from a fold separating the back cover from the front cover.
7. The passport of claim 1 , wherein the RFID tag is disposed at least 10 mm from a fold separating the back cover from the front cover.
8. The passport of claim 1 , wherein the personal identifying information includes a photograph.
9. The passport of claim 1 , wherein the RFID tag is configured to transmit at least the portion of the personal identifying information in an encrypted form.
10. The passport of claim 1 , further including a state memory configured to store a state of the RFID tag, the state memory including an integrated circuit.
11. The passport of claim 10 , wherein the integrated circuit further includes a state logic configured to modify a state of the RFID tag.
12. The passport of claim 10 , wherein the state memory is configured to store two alternative ON states, but not an OFF state.
13. The passport of claim 10 , wherein the state memory is configured to store at least an ON state and OFF state.
14. The passport of claim 10 , wherein the state memory is configured to store two alternative ON states.
15. The passport of claim 1 , wherein the back cover includes at least part of the shield.
16. The passport of claim 1 , wherein the shield is configured to attenuate the radio frequency signal by at least 15 dB.