PATENT CLAIM ANALYSIS

Application Number: 15904737
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["330", "107000"]

Abstract:
This application relates to methods and apparatus for operating MEMS sensors, in particular MEMS capacitive sensors (C MEMS ) such as a microphones. An amplifier apparatus ( 300 ) is arranged to amplify an input signal (V INP ) received at a sense node ( 104 ) from the MEMS capacitive sensor. An antiphase signal generator ( 201; 304 ) generates a second signal (V INN ) which is in antiphase with the input signal (V INP ) and an amplifier arrangement ( 105; 305 ) is configured to receive the input signal (V INP ) at a first input and the second signal (V INN ) at a second input and to output corresponding amplified first and second output signals. This converts a single ended input signal effectively into a differential input signal.

Claim (Index 6):
An amplifier apparatus as claimed in  claim 1  wherein the antiphase signal generator comprises a feedback amplifier configured to receive a common-mode signal indicative of a common mode voltage of the first and second output signals and a common-mode reference voltage and to drive the second signal at the second input of amplifier arrangement to keep the common mode voltage of the first and second output signals to be equal to the common-mode reference voltage.

Metadata:
- Claim Count in Document: 27.0
- Percentile: 88.0
- Lexical Diversity: 2.16176
- Patent Class: 330.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15087630', '12826210', '14049126', '14574714', '15855106']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7785566049803735
- 35 USC 102 Novelty (BERT): 0.5137576082317932
- Combined Prediction Score: 0.7520767053055154
- Mean Citation Score: 249.14243
- Max Citation Score: 266.2819
- Similarity Product: 195.65141236943603

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