PATENT CLAIM ANALYSIS

Application Number: 16018197
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-08
Patent Classification: ["375", "297000"]

Abstract:
A power amplifier apparatus supporting reverse intermodulation product (rIMD) cancellation is provided. The power amplifier apparatus includes an amplifier circuit configured to amplify and output a radio frequency (RF) signal for transmission via an antenna port. The antenna port may receive a reverse interference signal, which may interfere with the RF signal to create a rIMD(s) that can fall within an RF receive band(s). A reverse coupling circuit is provided in the power amplifier apparatus to generate an interference cancellation signal based on the reverse interference signal. The amplifier circuit is configured to amplify the interference cancellation signal and the RF signal to create an intermodulation product(s) to suppress the rIMD(s) to a determined threshold. By suppressing the rIMD(s) in the power amplifier apparatus, it is possible to support concurrent transmissions and receptions in a number of RF spectrums while in compliance with stringent regulatory spurious emissions (SEM) requirements.

Claim (Index 10):
The power amplifier apparatus of  claim 5  wherein the reverse coupling circuit comprises:\n a first directional coupler coupled to the antenna port and configured to couple the reverse interference signal from the antenna port to the reverse coupling circuit; \n a tunable notch filter coupled to the first directional coupler and configured to block a leakage of the RF signal coupled from the antenna port to the reverse coupling circuit; \n a filter coupled to the first directional coupler; \n a phase shifter coupled to the filter; \n an attenuator coupled to the phase shifter; and \n a second directional coupler coupled between the attenuator and the amplifier input, the second directional coupler configured to couple the interference cancellation signal to the amplifier input.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 94.0
- Lexical Diversity: 2.34211
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15837496', '15889616', '14192513', '14214579', '11560722']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5294129295064437
- 35 USC 102 Novelty (BERT): 0.4957529205567809
- Combined Prediction Score: 0.5260469286114774
- Mean Citation Score: 236.615974
- Max Citation Score: 245.24821
- Similarity Product: 184.0620617520958

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