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AssigneeParkerVision, Inc.
InventorsGregory S. Rawlins, Kevin Brown, Michael W. Rawlins, David F. Sorrells
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A filter module for reducing a DC offset voltage in a radio frequency communication channel is described. A first capacitor is coupled between a first differential input node and a first differential output node. A second capacitor is coupled between a second differential input node and a second differential output node. An active variable resistor is coupled between the first differential output node and the second differential output node. The active variable resistor receives a control signal. The control signal adjusts the value of the active variable resistor, which adjusts the frequency response of the filter module. The rate at which the filter module reduces DC offset voltages is thereby adjusted. The filter module is also adaptable to single-ended applications.
A filter module for reducing a DC offset voltage, comprising:
A filter module for reducing a DC offset voltage, comprising:
An automatic gain control (AGC) feedback loop, comprising:
A method for reducing a DC offset voltage in a differential signal received across a first differential input node and a second differential input node, comprising the steps of:
66 The method of claim 65, wherein step (2) includes the step of:
A method for reducing a DC offset voltage in an input signal, comprising the steps of:
Dependencies are inferred from the claim text.