PATENT CLAIM ANALYSIS

Application Number: 15897177
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["381", "094800"]

Abstract:
A system includes a class D amplifier and a current steering digital-to-analog converter (DAC) directly connected to the class D amplifier. The system also includes a common mode servo circuit coupled to a node interconnecting the current steering DAC to the class D amplifier. The common servo circuit amplifies a difference between a common mode signal determined from the node and a reference voltage and generates a feedback current to the node based on the amplified difference. A feed-forward common-mode compensation circuit is included to reduce an alternating current (AC) ripple from the class D amplifier. The feed-forward common-mode compensation circuit includes first and second resistors coupled to respective outputs of the class D amplifier. A current mirror is coupled to the first and second resistors and is configured to sink a current from the node to ground that approximates a common mode feedback current of the class D amplifier.

Claim (Index 11):
The system of  claim 7 , further including a chopping circuit coupled between both the node and the common mode servo circuit as well as between the node and the feed-forward common-mode compensation circuit.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 88.0
- Lexical Diversity: 2.5
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15395290', '15630942', '15833515', '13839763', '11949184']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6802993375501756
- 35 USC 102 Novelty (BERT): 0.5443984959364349
- Combined Prediction Score: 0.6667092533888015
- Mean Citation Score: 245.050108
- Max Citation Score: 375.3513
- Similarity Product: 332.8555336324632

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