Dynamic high-pass filter cut-off frequency adjustment
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United States of America Patent
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Jul 2, 2019
Grant Date -
Mar 28, 2019
app pub date -
Sep 26, 2017
filing date -
Sep 26, 2017
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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.
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