System for RFID transponder interrogation by frequency transposition
US10289878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2015 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jul 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10356
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a system for electromagnetic interrogation of RFID transponders including at least one RFID terminal configured to emit an interrogation signal at a frequency F1, at least one RFID device referred to as repeater configured to receive the interrogation signal with frequency F1 and to repeat same towards at least one RFID transponder at the frequency F2, characterized in that the at least one RFID terminal includes at least one RFID reader configured to emit an interrogation signal with frequency F0 and at least one add-on RFID device configured to perform a frequency transposition from the frequency F0 to the frequency F1, the frequencies F0 and F1 being different.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.