PATENT CLAIM ANALYSIS

Application Number: 15887802
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["315", "077000"]

Abstract:
A lighting circuit for a light source includes a drive circuit that supplies a lamp current to the light source, detects the lamp current, and executes feedback control such that the lamp current approaches a target current, and an overcurrent protection circuit that is inserted between the drive circuit and the light source and that restricts the lamp current flowing into the light source so that the lamp current does not exceed an overcurrent threshold value. The overcurrent protection circuit includes a transistor, an inductor, a rectifier, a current sensor that generates a current detection signal according to the lamp current, and an overcurrent protection controller that controls ON/OFF of the transistor based on the current detection signal and the overcurrent threshold value. The transistor, the inductor and the rectifier are disposed in a T-shape.

Claim (Index 22):
The lighting circuit of  claim 20 ,\n wherein the OFF-latch circuit comprises:\n a switching detector that generates a switching detection signal that adopts:\n a first state when the transistor is steadily ON, and \n a second state when the transistor repeatedly switches ON and OFF, \n \n a second timer circuit that asserts a suspension signal when the second state of the switching detection signal has continued for the specific time, and \n a forced-OFF circuit that forcibly switches the transistor OFF when the suspension signal is asserted.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 88.0
- Lexical Diversity: 2.47458
- Patent Class: 315.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14855439', '15225332', '14950881', '15168645', '15672958']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7365814643638261
- 35 USC 102 Novelty (BERT): 0.5611255256490082
- Combined Prediction Score: 0.7190358704923443
- Mean Citation Score: 273.22022400000003
- Max Citation Score: 436.14832
- Similarity Product: 322.4267028803921

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