PATENT CLAIM ANALYSIS

Application Number: 15764207
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["315", "193000"]

Abstract:
An LED drive circuit in which a bright change of an LED is suppressed even if the voltage of a full-wave rectified waveform fluctuates is provided. The LED drive circuit includes a bridge rectifier circuit, an LED string made up by a plurality of LEDs being connected in series and supplied with a current from the bridge rectifier circuit, and a current limiting circuit that has a current input terminal and a current output terminal connected onto a path that starts from the bridge rectifier circuit and returns to the bridge rectifier circuit via the LED string, which limits a current that flows through the LED string to an upper limit current value or smaller, and further, which decreases the upper limit current value in accordance with the amount of rise in the voltage when the voltage at the current input terminal viewed from the current output terminal rises.

Claim (Index 1):
An LED drive circuit comprising:\n a bridge rectifier circuit; an LED string made up by a plurality of LEDs being connected in series and supplied with a current from the bridge rectifier circuit; and a current limiting circuit that has a current input terminal and a current output terminal connected onto a path that starts from the bridge rectifier circuit, and returns to the bridge rectifier circuit via the LED string, and a switch element having one end as the current input terminal and another end as the current output terminal, and having a control terminal, which limits a current that flows through the LED string to an upper limit current value or smaller, and further, decreases the upper limit current value in accordance with an amount of rise in the voltage when the voltage at the current input terminal viewed from the current output terminal rises, by controlling a voltage applied to the control terminal of the switch element.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 2.19718
- Patent Class: 315.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15564669', '14384386', '14768366', '14879155', '14347736']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7318431656389581
- 35 USC 102 Novelty (BERT): 0.5008669542899252
- Combined Prediction Score: 0.7087455445040549
- Mean Citation Score: 266.709466
- Max Citation Score: 279.21838
- Similarity Product: 230.15040488135816

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test