PATENT CLAIM ANALYSIS

Application Number: 16000952
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-12
Patent Classification: ["330", "298000"]

Abstract:
Techniques are described for using valley detection for supply voltage modulation in power amplifier circuits. Embodiments operate in context of a power amplifier circuit configured to be driven by a supply voltage generated by a supply modulator and to receive an amplitude-modulated (AM) signal at its input. The output of the power amplifier circuit can be fed to a valley detector that can detect a valley level corresponding to the bottom of the envelope of the AM signal. The detected valley level can be fed back to the supply modulator and compared to a constant reference. In response to the comparison, the supply modulator can vary the supply voltage to the power amplifier circuit in a manner that effectively tracking the envelope of the power amplifier circuit's output signal, thereby effectively seeking a flat valley for the output signal's envelope.

Claim (Index 1):
A power amplifier system comprising:\n a supply modulator circuit having a reference voltage input, a valley level input, and a supply output to output a supply voltage; a power amplifier circuit coupled with the supply output of the supply modulator circuit to receive the supply voltage, and having a signal input and a signal output, the signal output generated by applying a gain to the signal input according to the supply voltage; a valley detector circuit having a detection input coupled with the signal output of the power amplifier circuit, and having a detection output coupled with the valley level input of the supply modulator circuit, a detection signal at the detection output generated as a function of the detection input substantially to track a valley level of an amplitude envelope of the signal output of the power amplifier circuit, wherein the supply voltage is regulatable by the supply modulator circuit as a function of the reference voltage input and the valley level input substantially to track the amplitude envelope of the signal output of the power amplifier circuit; and a gating circuit coupled with the valley detector circuit and having a gated detection output generated, such that the gated detection output corresponds to the detection output when the supply voltage is above a predetermined minimum supply voltage level, and the gated detection output causes the supply modulator circuit to maintain the supply voltage at a level corresponding to the predetermined minimum supply voltage level otherwise.

Metadata:
- Claim Count in Document: 21.0
- Percentile: 94.0
- Lexical Diversity: 2.22059
- Patent Class: 330.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15690467', '15969075', '11418831', '15956443', '14581630']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7528938727726439
- 35 USC 102 Novelty (BERT): 0.504996812926772
- Combined Prediction Score: 0.7281041667880567
- Mean Citation Score: 223.217236
- Max Citation Score: 230.92021
- Similarity Product: 161.2281298532164

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

Dataset: test