PATENT CLAIM ANALYSIS

Application Number: 16258182
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-08
Patent Classification: ["315", "291000"]

Abstract:
A light source device includes: a semiconductor light source; a switching element connected in series to the semiconductor light source; a drive circuit that turns on the switching element when a first control signal based on a PWM signal is in a first logic state; a switching power supply circuit that supplies a current to the semiconductor light source; a current detection element that detects a current flowing through the semiconductor light source and generates a current detection signal; a current detection circuit that sample-holds a current detection signal for a period shorter than an activation period of the PWM signal, an error amplifier that generates an error signal by amplifying the difference between a current control signal and an output signal of the current detection circuit; and a control circuit that generates a second control signal for controlling the switching power supply circuit based on the error signal.

Claim (Index 7):
The light source device according to  claim 1 , wherein the current detection circuit further includes a current sense amplifier that amplifies an output signal of the sample-hold circuit.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 99.0
- Lexical Diversity: 2.67797
- Patent Class: 315.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15888027', '12691984', '12688152', '14553178', '13089694']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6952534183220459
- 35 USC 102 Novelty (BERT): 0.5006128418435786
- Combined Prediction Score: 0.6757893606741991
- Mean Citation Score: 210.63071400000004
- Max Citation Score: 221.75461
- Similarity Product: 162.44206259237887

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