Dynamic high-pass filter cut-off frequency adjustment
US10340967B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Sep 26, 2017 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Sep 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/305
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A transceiver that allows dynamic high-pass filter (HPF) cut-off frequency adjustment may include a mixer circuit to mix a local oscillator (LO) signal with a receive (RX) signal received from a transmitter to generate a baseband signal. The transceiver may further include a high-pass filter (HPF) having an adjustable cut-off frequency that is used to reduce a DC offset of the baseband signal. A control circuit can dynamically control components of the HPF to set the adjustable cut-off frequency at a first frequency during a first time period and at a second frequency during a second time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.