PATENT CLAIM ANALYSIS

Application Number: 15981553
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["315", "294000"]

Abstract:
A lighting device is a device that is for supplying current to an LED unit, is connected to a constant current source having output terminals to which a capacitor is connected, and includes: a transistor connected in parallel with the capacitor and connected in series with the LED unit; a modulation circuit (a microcomputer of a modulator, etc.) that causes the transistor to switch ON and OFF based on a signal for visible light communication; and a constant current control circuit that maintains a current flowing through the transistor at a constant current when the current flowing through the transistor is greater than a first predetermined value.

Claim (Index 6):
A lighting device that is for supplying current to a light emitting element and is connected to a constant current source having output terminals to which a capacitor is connected, the lighting device comprising:\n a constant current source; a capacitor connected to output terminals of the constant current source; a series circuit connected in parallel with the capacitor and including a load line and a switch element that are configured to be connected in series with the light emitting element; a modulation circuit that causes the switch element to switch ON and OFF based on a signal for visible light communication; an overvoltage detection circuit that detects when an output voltage of the constant current source exceeds a first predetermined value, and, upon detecting that the output voltage exceeds the first predetermined value, performs output suppression control to stop operation of the constant current source or to reduce the output of the constant current source; and an abnormality detection circuit that detects an abnormal state, and, upon detecting the abnormal state, causes the switch element to switch OFF for at least a first predetermined time period, the abnormal state being at least one of an abnormality in the light emitting element, an abnormality in the load line, an abnormality in the modulation circuit, and an overloading of the switch element, wherein the constant current source causes the output voltage to rise until the output voltage exceeds the first predetermined value, when the abnormality detection circuit causes the switch element to switch OFF for at least the first predetermined time period.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 93.0
- Lexical Diversity: 1.8871
- Patent Class: 315.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15047446', '15168645', '14021003', '14554784', '12364559']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6925087041391504
- 35 USC 102 Novelty (BERT): 0.478381347520498
- Combined Prediction Score: 0.6710959684772853
- Mean Citation Score: 218.59903
- Max Citation Score: 220.73796
- Similarity Product: 189.46569994791983

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