PATENT CLAIM ANALYSIS

Application Number: 15939494
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-06
Patent Classification: ["330", "297000"]

Abstract:
An envelope tracking (ET) amplifier circuit is provided. In examples discussed herein, an amplifier circuit(s) is configured to amplify a radio frequency (RF) signal based on an ET modulated voltage. A tracker circuit is configured to generate the ET modulated voltage based on a number of target voltage amplitudes derived from a time-variant signal envelope of the RF signal. However, the tracker circuit can cause the ET modulated voltage to deviate from the target voltage amplitudes due to various impedance variations. In this regard, a voltage memory digital pre-distortion (mDPD) circuit digitally pre-distorts the target voltage amplitudes based on the time-variant signal envelope such that the ET modulated voltage can closely track the target voltage amplitudes. As such, it is possible to mitigate ET modulated voltage deviation, thus helping to improve overall linearity performance of the ET amplifier circuit.

Claim (Index 5):
The ET amplifier circuit of  claim 4  further comprising a tracker circuit coupled to the voltage DAC and configured to generate the at least one ET modulated voltage having a time-variant voltage envelope tracking the time-variant target voltage envelope.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 90.0
- Lexical Diversity: 2.20833
- Patent Class: 330.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15792909', '15888300', '15704131', '15723460', '15728202']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.813762099514491
- 35 USC 102 Novelty (BERT): 0.5630006738643141
- Combined Prediction Score: 0.7886859569494733
- Mean Citation Score: 358.87566400000014
- Max Citation Score: 440.6423
- Similarity Product: 393.30604954136606

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

Dataset: test