PATENT CLAIM ANALYSIS

Application Number: 15861109
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["250", "551000"]

Abstract:
A light-emitting unit outputs an optical signal corresponding to an input electric signal. A light-receiving unit is electrically insulated from the light-emitting unit and outputs an electric signal according to the received optical signal as an output signal. In the light-receiving unit, a first light-receiving device outputs an optical current according to the optical signal. A second light-receiving device is provided not to receive the optical signal. A current duplication circuit duplicates a current flowing through the second light-receiving device. A current-voltage conversion circuit converts a current, which is generated by subtracting the current duplicated by the current duplication circuit from a current flowing through the first light-receiving device, into a voltage signal. A comparator output a result of a comparison between the voltage signal converted by the current-voltage conversion circuit and a threshold voltage as the output signal.

Claim (Index 4):
The optical coupling circuit according to  claim 2 , further comprising:\n a third constant current source and a third transistor connected between the power supply and the ground in cascade; and a fourth constant current source and a fourth transistor connected between the power supply and the ground in cascade, a fifth constant current source; a second resistor; and a second differential amplifier configured to output the second voltage to the first differential amplifier, one end of the second differential amplifier being connected to one end of the fourth transistor, one end of the fifth constant current source, and one end of the second resistor, the first voltage being input to the other end of the second differential amplifier, an output of the second differential amplifier being connected to the other end of the second resistor, wherein the third and fourth transistors constitute a current mirror; the third and fourth transistors are the same size transistors, and the third and fourth constant current sources output currents of the same value.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 2.70909
- Patent Class: 250.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14698998', '10134435', '12923959', '12591930', '15675927']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7060232363627423
- 35 USC 102 Novelty (BERT): 0.5301597110113895
- Combined Prediction Score: 0.6884368838276071
- Mean Citation Score: 238.421928
- Max Citation Score: 369.56088
- Similarity Product: 304.92316391435617

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