RFID based identification device
US7859415B2 · kind B2 · utility
1Cited by
2References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 2, 2008 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Apr 25, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13098
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A RFID-based identification device comprising a first RFID antenna; and a second RFID antenna, wherein the first and second RFID antennas are in a first arrangement, the resonant frequencies of the antennas are away from an interrogation frequency such that no identification information is transferred, and wherein when the first and second RFID antennas are in a second arrangement, the resonant frequency of the identification device shifts such that identification information is transferred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.