RFID transceiver with implemented phase calibration, and phase calibration method
US12424739B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2022 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Feb 27, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10237
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
There is described an RFID device, comprising: a transmitter, a matching device, and a receiver.The transmitter is hereby coupled via the matching device to the receiver. The transmitter is configured to transmit a transmitter signal through the matching device, thereby obtaining a calibration signal. The receiver is configured to receive the calibration signal and estimate a phase shift of the calibration signal. Further, the RFID device is configured to adjust at least one of a transmitter phase shift and a receiver phase shift in order to compensate for the estimated phase shift.Further, a method of calibrating a phase shift in an RFID device is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.