PATENT CLAIM ANALYSIS

Application Number: 16197078
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["382", "125000"]

Abstract:
A method for fingerprint unlocking is provided. Whether fingerprint ridges of fingerprint images obtained are discontinuous or fuzzy is determined, in response to a fingerprint recognition module being detected to be pressed. If YES, Multiple fingerprint images are acquired, by acquiring fingerprints more than once with any first adjustment level selected from an ADC offset including M first adjustment levels and any second adjustment level selected from an ADC gain including N second adjustment levels. Multiple image quality evaluation values are obtained, by performing an image quality evaluation on each of the plurality of fingerprint images according to one or more image quality evaluation indexes, and a fingerprint image corresponding to a maximum image quality evaluation value is selected as a target fingerprint image. A terminal is unlocked when the target fingerprint image matches a preset fingerprint image successfully. A terminal is also provided.

Claim (Index 11):
A terminal, comprising:\n a memory storing executable program codes; a processor coupled with the memory; the processor being configured to evoke the executable program codes stored in the memory to:\n determine whether fingerprint ridges of fingerprint images obtained are discontinuous or fuzzy, in response to a fingerprint recognition module being detected to be pressed; \n obtain a plurality of fingerprint images, by acquiring fingerprints more than once with any first adjustment level selected from an analog-to-digital converter (ADC) offset comprising M first adjustment levels and any second adjustment level selected from an ADC gain comprising N second adjustment levels, based on a determination that the fingerprint ridges of the fingerprint images obtained are discontinuous or fuzzy; M and N being integers greater than 1; \n obtain a plurality of image quality evaluation values, by performing an image quality evaluation on each of the plurality of fingerprint images according to one or more image quality evaluation indexes, and selecting a fingerprint image corresponding to a maximum image quality evaluation value as a target fingerprint image; the image quality evaluation indexes comprising image clarity, signal-to-noise ratio (SNR), ridge resolution, fingerprint image coverage rate, contrast ratio, and average gray scale; and \n unlock a terminal when the target fingerprint image matches a preset fingerprint image successfully.

Metadata:
- Claim Count in Document: 10.0
- Percentile: 98.0
- Lexical Diversity: 1.9375
- Patent Class: 382.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15810186', '15842936', '15989042', '15787042', '15989034']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3091430547112549
- 35 USC 102 Novelty (BERT): 0.4919583622893635
- Combined Prediction Score: 0.3274245854690658
- Mean Citation Score: 237.310638
- Max Citation Score: 251.9737
- Similarity Product: 217.16990718076232

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