PATENT CLAIM ANALYSIS

Application Number: 15985224
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["382", "124000"]

Abstract:
A method and an apparatus for determining existence of a foreign material on a surface of a fingerprint sensor of a terminal are provided. The method includes the following. A current capacitance value of the fingerprint sensor of the terminal is obtained. A first difference between the current capacitance value and a preset capacitance reference value is calculated. Determine that the foreign material is present on the surface of the fingerprint sensor when the first difference is within a preset foreign-material threshold range. The preset capacitance reference value is a capacitance value tested with no foreign material on the surface of the fingerprint sensor before leaving the factory and is stored in a system in advance. The preset foreign-material threshold range is set in advance according to experimental data of capacitance-change tests performed on the fingerprint sensor when different conductive foreign materials are on the surface of the fingerprint sensor.

Claim (Index 1):
A method for determining existence of a foreign material on a surface of a fingerprint sensor of a terminal, comprising:\n obtaining a current capacitance value of the fingerprint sensor of the terminal; calculating a first difference between the current capacitance value and a preset capacitance reference value; and determining that the foreign material is present on the surface of the fingerprint sensor when the first difference is within a preset foreign-material threshold range; wherein the preset capacitance reference value is a capacitance value tested with no foreign material present on the surface of the fingerprint sensor before leaving the factory and is stored in a system in advance; wherein the preset foreign-material threshold range is set in advance according to experimental data of capacitance-change tests performed on the fingerprint sensor when different conductive foreign materials are present on the surface of the fingerprint sensor; the method further comprising removing the foreign material in a preset manner after the determining that the foreign material is present on the surface of the fingerprint sensor; and the removing the foreign material in a preset manner comprising increasing a temperature of the fingerprint sensor to remove the foreign material.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 93.0
- Lexical Diversity: 2.45312
- Patent Class: 382.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15584913', '15846236', '15787042', '15757290', '15934316']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2700902648528604
- 35 USC 102 Novelty (BERT): 0.488488229595992
- Combined Prediction Score: 0.2919300613271736
- Mean Citation Score: 143.49426200000005
- Max Citation Score: 152.99033
- Similarity Product: 94.99481079363524

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