PATENT CLAIM ANALYSIS

Application Number: 15879273
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-09
Patent Classification: ["330", "311000"]

Abstract:
Systems, methods and apparatus for efficient power control and/or compensation with respect to a varying supply voltage of an RF amplifier for amplification of a constant envelope RF signal are described. A reduction in a size of a pass device of an LDO regulator is obtained by removing the pass device of the LDO regulator from a main current conduction path of the RF amplifier. Power control and/or compensation is provided by varying one or more gate voltages to cascoded transistors of a transistor stack of the RF amplifier according to a power control voltage. Various configurations for controlling the gate voltages are presented by way of a smaller size LDO regulator or by completely removing the LDO regulator. In a case where a supply voltage to the transistor stack varies, such as in a case of a battery, a compensation circuit is used to adjust the power control voltage in view of a variation of the supply voltage, and therefore null a corresponding drift/variation in output power of the RF amplifier.

Claim (Index 9):
The circuital arrangement according to  claim 8 , wherein the difference circuit comprises:\n a first current mirror coupled to a substantially constant reference voltage through a first leg of the first current mirror so to generate the substantially constant current; and a second current mirror coupled to the varying supply voltage through a first leg of the second current mirror so to generate the varying current, wherein respective second legs of the first and the second current mirror are in series connection so to generate the difference between the substantially constant current and the varying current.

Metadata:
- Claim Count in Document: 28.0
- Percentile: 86.0
- Lexical Diversity: 2.18072
- Patent Class: 330.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15451184', '15451178', '15415768', '15279274', '15481276']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7930063206619272
- 35 USC 102 Novelty (BERT): 0.5731093674283976
- Combined Prediction Score: 0.7710166253385742
- Mean Citation Score: 358.940546
- Max Citation Score: 471.99988
- Similarity Product: 385.37060381425385

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