Dynamically interactive RFID tag with optical control
US10185911B1 · kind B1 · utility
1Cited by
0References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2018 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Jan 10, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07705
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A radio frequency identifier (RFID) tag is provided for receiving and reflecting electromagnetic energy at select frequency bands of visible and infrared wavelengths. The RFID tag includes an electrically conductive backplane; a dielectric substrate disposed on the backplane; a light guide film (LGF) disposed on the substrate, and metamaterial elements. The LGF has an exposed surface segregated into domains. The metamaterial devices are disposed on a domain. Each device is tuned to respond to a corresponding frequency among the select frequency bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.