Digital pre-distortion for an amplifier
AssigneeCisco Technology, Inc.
InventorsHang Jin, John T. Chapman
Life of this patent
Estimating the term…
Abstract
Digital pre-distortion may be provided. First, a characterization for input matching circuitry may be determined. Next, a characterization for non-linearity of an amplifier connected to the input matching circuitry may be determined. Then, a distortion correcting signal may be generated from an input signal based on the determined characterization for the input matching circuitry and the determined characterization for the non-linearity of the amplifier. The generated distortion correcting signal may then be provided to the input matching circuitry.
Claims17
A method comprising:
- determining a characterization for input matching circuitry, wherein determining the characterization for the input matching circuitry comprises comparing an input signal to an output signal;
- determining a characterization for non-linearity of an amplifier connected to the input matching circuitry;
- and
- generating a distortion correcting signal from the input signal based on the determined characterization for the input matching circuitry and the determined characterization for the non-linearity of the amplifier.
A non-transitory computer-readable medium that stores a set of instructions which when executed perform a method comprising:
- determining a characterization for input matching circuitry, wherein determining the characterization for the input matching circuitry comprises comparing an input signal to an output signal;
- determining a characterization for non-linearity of an amplifier connected to the input matching circuitry;
- and
- generating a distortion correcting signal from the input signal based on the determined characterization for the input matching circuitry and the determined characterization for the non-linearity of the amplifier.
A system comprising:
- a memory storage;
- and
- a processing unit coupled to the memory storage, wherein the processing unit is operative to:
- determine a characterization for input matching circuitry, wherein the processing unit being operative to determine the characterization for the input matching circuitry comprises the processing unit being operative to compare an input signal to an output signal;
- determine a characterization for non-linearity of an amplifier connected to the input matching circuitry;
- and
- generate a distortion correcting signal from the input signal based on the determined characterization for the input matching circuitry and the determined characterization for the non-linearity of the amplifier.
Dependencies are inferred from the claim text.