PATENT CLAIM ANALYSIS

Application Number: 15768218
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["250", "208100"]

Abstract:
The present disclosure provides a fingerprint photocurrent detection unit, a fingerprint identifier, a driving method and a display device. The fingerprint photocurrent detection unit includes: a conversion circuit coupled to a fingerprint photocurrent reading line and configured to convert a fingerprint photocurrent acquired by the fingerprint photocurrent reading line into a square wave signal; and a detection circuit coupled to the conversion circuit and configured to detect the square wave signal and acquire information about a fingerprint photocurrent in accordance with a frequency of the square wave signal.

Claim (Index 15):
The fingerprint identifier according to  claim 8 , wherein the conversion circuit comprises a detection control module, a first switching module, a second switching module, a phase inversion module and a storage module;\n a control end of the first switching module is coupled to the detection control module and a first node, a first end of the first switching module is coupled to a high level line, and a second end of the first switching module is coupled to a control end of the second switching module; the first switching module is configured to be turned on in the case that a potential at the first node is a first level, and turned off in the case that the potential at the first node is a second level; a first end of the storage module is coupled to the second end of the first switching module, and a second end of the storage module is coupled to a low level line; the control end of the second switching module is further coupled to the fingerprint photocurrent reading line and a second node, a first end of the second switching module is coupled to an output end of the phase inversion module, and a second end of the second switching module is coupled to an input end of the phase inversion module; the second switching module is configured to be turned on in the case that a potential at the second node is a low level, and turned off in the case that the potential at the second node is a high level; the output end of the phase inversion module is further coupled to a third node, and the phase inversion module is configured to invert a phase of a level applied to its input end and output a signal; the detection control module is coupled to the first node and the output end of the phase inversion module, and configured to, in the case that a detection operation starts and the signal from the output end of the phase inversion module is at a rising or falling edge, control the potential at the first node to be the first level, in the case that the potential at the first node is maintained as the first level for a predetermined time period, control the potential at the first node to jump to the second level, and in the case that the detection operation starts, control the potential at the third node to be the high level or the low level; and the detection circuit is coupled to at least one of the output end of the phase inversion module and the first node, and further configured to detect at least one of a frequency of a waveform of a potential at the output end of the phase inversion module and a frequency of a waveform of the potential at the first node, and acquire the information about the fingerprint photocurrent in accordance with the frequency of the waveform of the potential at the output end of the phase inversion module and the frequency of the waveform of the potential at the first node.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 91.0
- Lexical Diversity: 2.13636
- Patent Class: 250.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15827551', '15690033', '15576800', '10975993', '15110798']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7215731338677949
- 35 USC 102 Novelty (BERT): 0.4837029668483536
- Combined Prediction Score: 0.6977861171658508
- Mean Citation Score: 180.03974000000005
- Max Citation Score: 201.15964
- Similarity Product: 146.51466847371816

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