PATENT CLAIM ANALYSIS

Application Number: 16371377
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-07
Patent Classification: ["375", "297000"]

Abstract:
An envelope tracking (ET) amplifier circuit is provided. The voltage mDPD circuit is provided in an ET amplifier circuit and configured to determine a voltage deviation relative to an ET modulated target voltage signal, execute an mDPD polynomial in one or more iterations to extract an mDPD coefficient(s), and adjust a time-variant target voltage envelope of the ET modulated target voltage signal based on the mDPD coefficient(s) extracted in each of the mDPD iterations to reduce the voltage deviation to a predefined threshold. By reducing the voltage deviation in the ET modulated voltage, it is possible improve linearity (e.g., gain linearity) of the ET amplifier circuit, which can lead to reduced power consumption and improved radio frequency (RF) performance.

Claim (Index 1):
An envelope tracking (ET) amplifier circuit comprising:\n at least one amplifier circuit configured to amplify a radio frequency (RF) signal based on an ET modulated voltage; ET tracker circuitry configured to receive an ET modulated target voltage signal comprising a time-variant target voltage envelope and generate the ET modulated voltage comprising a time-variant voltage envelope tracking the time-variant target voltage envelope; and a voltage input path configured to provide the ET modulated target voltage signal to the ET tracker circuitry, the voltage input path comprises a voltage memory digital pre-distortion (mDPD) circuit configured to:\n determine a voltage deviation of the ET modulated voltage relative to the ET modulated target voltage signal; and \n adjust the time-variant target voltage envelope based on at least one mDPD coefficient to reduce the voltage deviation to a predefined threshold.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 100.0
- Lexical Diversity: 2.10606
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15792909', '15939494', '15964762', '15888300', '16038277']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5399233358063327
- 35 USC 102 Novelty (BERT): 0.6048313678504965
- Combined Prediction Score: 0.5464141390107491
- Mean Citation Score: 397.138924
- Max Citation Score: 529.98785
- Similarity Product: 511.39160330817685

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test