Samsung electronics co., ltd. (20240348273). LOW COMPLEXITY DIRECT-TO-LUT DIGITAL PRE-DISTORTION METHOD simplified abstract
Contents
LOW COMPLEXITY DIRECT-TO-LUT DIGITAL PRE-DISTORTION METHOD
Organization Name
Inventor(s)
Paul Nicholas Fletcher of Impington (GB)
LOW COMPLEXITY DIRECT-TO-LUT DIGITAL PRE-DISTORTION METHOD - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240348273 titled 'LOW COMPLEXITY DIRECT-TO-LUT DIGITAL PRE-DISTORTION METHOD
The patent application describes a distortion apparatus for a power amplifier that includes pre-distortion circuitry with a memory polynomial look-up-table (LUT) circuit and post-distortion circuitry that updates the pre-distortion circuitry based on the power amplifier's output.
- The pre-distortion circuitry consists of multiple LUTs, each corresponding to a different memory depth of a memory polynomial of a Volterra series.
- Each LUT is indexed by the instantaneous power of an input sample delayed by an amount, corresponding to a specific memory depth.
- The output of the memory polynomial LUT circuit is the summation of each LUT's output multiplied by the input sample delayed by the corresponding amount.
- The output of the pre-distortion circuitry is then provided to the power amplifier for processing.
Potential Applications: - This technology can be used in telecommunications for improving signal quality in power amplifiers. - It can also be applied in audio systems to enhance sound output and reduce distortion.
Problems Solved: - Addresses the issue of distortion in power amplifiers, improving overall performance and signal quality. - Helps optimize the output of power amplifiers for various applications, leading to better efficiency.
Benefits: - Improved signal quality and reduced distortion in power amplifiers. - Enhanced performance and efficiency in telecommunications and audio systems.
Commercial Applications: Title: Advanced Distortion Apparatus for Power Amplifiers This technology can be utilized in the telecommunications industry to enhance signal quality and improve overall performance of power amplifiers. It can also find applications in audio systems to reduce distortion and enhance sound output, catering to a wide range of commercial uses in the market.
Questions about the technology: 1. How does the pre-distortion circuitry in the apparatus improve the performance of the power amplifier? - The pre-distortion circuitry uses memory polynomial LUTs to correct for distortion in the power amplifier's output, leading to improved signal quality. 2. What are the potential implications of using this distortion apparatus in telecommunications and audio systems? - The technology can significantly enhance signal quality, reduce distortion, and improve overall performance in various applications, making it a valuable asset in telecommunications and audio industries.
Original Abstract Submitted
a distortion apparatus for a power amplifier comprises: pre-distortion circuitry that comprises a memory polynomial look-up-table (lut) circuit; and post-distortion circuitry that updates the pre-distortion circuitry based on an output of the power amplifier. the pre-distortion circuitry comprises a plurality of luts. each lut corresponds to a different memory depth of a memory polynomial of a volterra series. each lut indexed by an instantaneous power of an input sample delayed by an amount corresponds to a respective memory depth of each lut. an output of the memory polynomial lut circuit corresponds to a summation of an output of each lut multiplied by the input sample delayed by the amount corresponding to the respective memory depth of each lut, and an output of the pre-distortion circuitry is provided to the power amplifier.
