Secure passive RFID tag with seal
US9818273B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2015 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Jul 10, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/06
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A secure passive RFID tag system comprises at least one base station and at least one passive RFID tag. The tag includes a fiber optic cable with the cable ends sealed within the tag and the middle portion forming an external loop. The loop may be secured to at least portions of an object. The tag transmits and receives an optical signal through the fiber optic cable, and the cable is configured to be damaged or broken in response to removal or tampering attempts, wherein the optical signal is significantly altered if the cable is damaged or broken. The tag transmits the optical signal in response to receiving a radio signal from the base station and compares the transmitted optical signal to the received optical signal. If the transmitted optical signal and the received optical signal are identical, the tag transmits an affirmative radio signal to the base station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.