Wireless transceiver capable of offsetting internal signal leakage
US10715203B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 17, 2019 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Jun 17, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0064
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a wireless transceiver capable of offsetting internal signal leakage. The wireless transceiver includes a transmission circuit, a reception circuit and a calibration circuit. The calibration circuit generates a first estimation signal according to the difference between a test signal and a reception digital signal passing through a standard path, generates a second estimation signal according to the difference between the test signal and a reception digital signal passing through a leakage path, and then determines N coefficient(s) of a calibration filter according to the difference between the first estimation signal and the second estimation signal. Therefore, the calibration circuit including the calibration filter can output a calibration signal to the reception circuit to offset at least a part of the signal leakage from the transmission circuit to the reception circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.