PATENT CLAIM ANALYSIS

Application Number: 16251905
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-06
Patent Classification: ["381", "120000"]

Abstract:
This application relates to amplifier circuits for amplifying an audio signal. An amplifier circuit ( 100 ) has a voltage regulator ( 201 ) for outputting a supply voltage to an amplifier ( 104 ). An output capacitor ( 103 ) coupled to an output node of the voltage regulator. The voltage regulator is operable in a voltage-control mode to maintain the output voltage (V S ) at a nominal output voltage and in current-control mode to limit the input current drawn to exceed a defined limit. A controller ( 301 ) is operable in a first mode to define the nominal output voltage so as not to exceed a first voltage magnitude and in a second mode to define the nominal output voltage to be equal to a second, higher, voltage magnitude. The controller ( 301 ) monitors the audio signal for a high-amplitude part of the audio signal, that could result in the voltage regulator operating in the current-control mode to apply current limiting and, on such detection swaps from the first to the second mode until such a high-amplitude part of the audio signal has been amplified. The second voltage magnitude is greater than required for voltage headroom for amplifying the high-amplitude part of the audio signal so as to allow for a voltage droop of the output voltage over a plurality of switching cycles of the voltage regulator when operating in the current-control mode.

Claim (Index 25):
The amplifier circuit of  claim 23  wherein the threshold generator comprises a programmable processor supplied with a software module for determining the threshold value.

Metadata:
- Claim Count in Document: 56.0
- Percentile: 99.0
- Lexical Diversity: 2.68817
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15903734', '11482020', '13536596', '11785227', '15724714']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7258441207098334
- 35 USC 102 Novelty (BERT): 0.5346270095618332
- Combined Prediction Score: 0.7067224095950334
- Mean Citation Score: 245.927528
- Max Citation Score: 361.60245
- Similarity Product: 244.05984623682795

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

Dataset: test