PATENT CLAIM ANALYSIS

Application Number: 16086975
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-05
Patent Classification: ["381", "058000"]

Abstract:
In a capacitively operating MEMS microphone, by varying the BIAS voltage, the pull-in point is determined and the present pull-in voltage and the corresponding pull-in capacitance between membrane and back electrode are ascertained. From the deviation of the present pull-in point from the values of a first pull-in point, these values being determined after an end test and stored in an internal memory of the MEMS microphone, and the likewise stored values at a first operating point a recalibrated BIAS voltage is determined and set in order thereby to bring the sensitivity closer again to that at the original first operating point.

Claim (Index 8):
A MEMS microphone with self-calibration device,\n comprising a capacitively operating MEMS sensor, to which a bias voltage is able to be applied, and comprising an ASIC connected to the MEMS sensor, wherein the ASIC is designed for the following steps\n a) carrying out a step by step increase in the bias voltage, \n b) determining the change in capacitance or the capacitance that forms in each case at the MEMS sensor, \n c) ascertaining the present pull-in point by way of the capacitance measurement, \n d) storing the measurement values for bias voltage and associated capacitance or change in capacitance at the pull-in point in an internal memory, \n e) carrying out an algorithm for calculating a recalibrated bias voltage VS new  using the presently determined measurement values already stored measurement values from a first measurement, \n f) applying the recalibrated BIAS voltage VS new  to the MEMS microphone.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 97.0
- Lexical Diversity: 1.92857
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15304961', '14839446', '14060403', '13836579', '11903905']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6850884493373511
- 35 USC 102 Novelty (BERT): 0.4691297890962009
- Combined Prediction Score: 0.6634925833132361
- Mean Citation Score: 180.983092
- Max Citation Score: 190.5985
- Similarity Product: 155.1558377430439

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

Dataset: test