RFID reader and associated complementary device
US12393799B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 11, 2022 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Nov 4, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/20
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A novel RFID communication device is proposed which allows the detection and electronic processing not only of the response signal backscattered at the fundamental frequency f0 of the reader, but also at least one response signal backscattered at a harmonic frequency, before feeding them to the conventional receive chain of an RFID reader. The joint use of the signal at the fundamental frequency of the reader and at least one signal at a harmonic frequency allows the reader's performance to be improved. The RFID reader can additionally be provided with novel functionalities by virtue of suitable software processing. It is applicable to the field of communications between a reader and passive transponders in UHF RFID and to the field of the Internet of Things.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.