Image distortion correction in a wireless terminal
US10374838B2 · kind B2 · utility
18Cited by
19References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2017 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Sep 16, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/0342
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit in a wireless communications terminal/device and a method is described for reducing an image distortion. By measuring three gain mismatches of I path and Q path of a transceiver, and estimating a value of an IQ mismatch coefficient based on the three gain mismatches; and applying a measurement adjustment to the I path or the Q path based on the value of the IQ mismatch coefficient, the image distortion is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.