PATENT CLAIM ANALYSIS

Application Number: 15918766
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["324", "658000"]

Abstract:
On the basis of the physical principle that a capacitance value is inversely proportional to the distance between capacitive electrodes, the spatial structure of the surface of an object can be imaged by measuring a coupling capacitance between the surface of measured object and the electrode arrays on a surface of a sensor; for example, imaging may be performed to uneven spaces between ridge lines and valley lines of fingerprints. The present application provides a C-Q-T type capacitive fingerprint sensor. Firstly, coupling capacitance differences between the fingerprints and the electrodes of the sensor are converted into charge quantity differences, then the charge quantity differences are converted into time differences, and edge signals carrying the time differences are output. Fingerprint sensors are grouped into an array, reading and data combination may be performed to the edge signals, and imaging may be performed to fingerprints.

Claim (Index 22):
The capacitive fingerprint sensor of  claim 20 , wherein, when an array of sensors is formed, each unit circuit is formed by the target electrode, the sensing electrode, the driving electrode, the first level driver, the second level driver, the first initialization switch, the first reference level and the charge transfer switch and a reused circuit is formed by the integrating capacitor, the second initialization switch, the second reference level, the comparator and the third reference level.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 90.0
- Lexical Diversity: 2.03947
- Patent Class: 324.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15230368', '15109626', '15779871', '15694755', '15875188']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5616194012136918
- 35 USC 102 Novelty (BERT): 0.5295474044383598
- Combined Prediction Score: 0.5584122015361586
- Mean Citation Score: 249.538752
- Max Citation Score: 346.09607
- Similarity Product: 237.172187151584

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