PATENT CLAIM ANALYSIS

Application Number: 15976561
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["330", "251000"]

Abstract:
A class D audio amplifier includes a modulator for receipt of an audio signal and converting the audio signal into a modulated audio signal having a predetermined carrier frequency. The class D audio amplifier additionally includes an output stage having a plurality of power transistors coupled in cascade between a first DC supply voltage and a second DC supply voltage, and a plurality of gate drivers configured to generate respective modulated gate drive signals to the plurality of power transistors. A controller is configured to adjust a level of a first modulated gate drive signal applied to a first power transistor of the output stage based on a level of the audio signal.

Claim (Index 16):
A method of decreasing power consumption of an output stage of a class D audio amplifier, the method comprising:\n applying an audio input signal to the class D audio amplifier; modulating the audio input signal to generate a modulated audio signal at a predetermined carrier or modulation frequency; determining a level of the audio signal; deriving, from the modulated audio signal, respective modulated gate drive signals for a plurality of power transistors of the output stage to repeatedly switch the plurality of power transistors between respective conducting states and non-conducting states; and adjusting the level of at least a first modulated gate drive voltage based on the determined level of the audio signal such that the level of the first modulated gate drive voltage is larger for audio signal levels exceeding a signal level threshold than for audio signal levels below the signal level threshold.

Metadata:
- Claim Count in Document: 31.0
- Percentile: 93.0
- Lexical Diversity: 2.08929
- Patent Class: 330.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15537919', '15532025', '15344151', '14396922', '13881509']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7875490592740234
- 35 USC 102 Novelty (BERT): 0.484221307603608
- Combined Prediction Score: 0.7572162841069819
- Mean Citation Score: 228.34519
- Max Citation Score: 236.81148
- Similarity Product: 200.1506073942733

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