PATENT CLAIM ANALYSIS

Application Number: 16159281
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-05
Patent Classification: ["330", "258000"]

Abstract:
A new compensation system for an audio input reduces noise by matching feedback ratios in the positive and negative paths. A variable resistance network allows for fine control of resistance trimming in one of the signal paths, which allows for compensation between tolerance of resistors that are external to an integrated circuit and those that are internal to the integrated circuit.

Claim (Index 25):
A multi-channel audio preamplifier implemented on an integrated circuit and comprising:\n a first audio preamplifier corresponding to a first audio channel, and including a first operational amplifier and a first configurable compensation circuit that includes a first resistor, a second resistor, and a first configurable resistor network, the first resistor and the first configurable resistor network in electrical communication between an input of the first audio preamplifier and an inverting input of the first operational amplifier, the second resistor in electrical communication between the inverting input and a non-inverting output of the first operational amplifier, and the first configurable resistor network including a first plurality of resistors and a first plurality of switches, each of the first plurality of switches coupled between a different pair of resistors of the first plurality of resistors and the inverting input of the first operational amplifier; and a second audio preamplifier corresponding to a second audio channel, and including a second operational amplifier and a second configurable compensation circuit that includes a third resistor, a fourth resistor, and a second configurable resistor network, the third resistor and the second configurable resistor network in electrical communication between an input of the second audio preamplifier and an inverting input of the second operational amplifier, the fourth resistor in electrical communication between the inverting input and a non-inverting output of the second operational amplifier, and the second configurable resistor network including a second plurality of resistors and a second plurality of switches, each switch of the second plurality of switches coupled between a different pair of resistors of the second plurality of resistors and the inverting input of the second operational amplifier.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 97.0
- Lexical Diversity: 1.45455
- Patent Class: 330.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14323657', '15385717', '12815362', '14162781', '12991540']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7268853583618018
- 35 USC 102 Novelty (BERT): 0.4952190477575592
- Combined Prediction Score: 0.7037187273013775
- Mean Citation Score: 175.862956
- Max Citation Score: 235.60768
- Similarity Product: 191.75344975219727

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