DC offset compensation in zero-intermediate frequency mode of a receiver
US11431359B2 · kind B2 · utility
0Cited by
8References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 30, 2020 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Nov 30, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/305
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for operating a radio frequency communications system includes, while operating a first radio frequency communications device in a calibration mode, for each setting of a plurality of settings of a programmable gain amplifier in a receiver of the first radio frequency communications device configured in a zero-intermediate frequency mode of operation, generating an estimate of a DC offset in each of a plurality of digital samples received from an analog circuit path including the programmable gain amplifier, and storing in a corresponding storage element, a compensation value based on the estimate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.