PATENT CLAIM ANALYSIS

Application Number: 15958309
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-09
Patent Classification: ["315", "291000"]

Abstract:
A flickerless LED driver device includes a transformer having a primary coil for receiving an alternating-current (AC) voltage, and a secondary coil for generating a first induced voltage induced from the primary coil; a secondary coil circuit for receiving the first induced voltage and applying a first direct-current (DC) voltage to an LED module; a current sensor for sensing a driving current flowing through the secondary coil circuit from the secondary coil; a current controller for receiving a signal about the driving current and generating a control signal for controlling an emission current flowing through the LED module; and a ripple attenuator connected to the LED module to receive a visual light communication (VLC) signal and the control signal, control an emission current corresponding to the VLC signal to flow through the LED module, and suppress ripple of the emission current.

Claim (Index 14):
The LED driver device according to  claim 9 , wherein the current controller comprises:\n a third transistor having a control terminal to which the signal about the driving current is input; a third diode having a cathode connected to a current input terminal of the third transistor, and an anode connected to a line of the second DC voltage, to block a current from flowing in a direction toward the line of the second DC voltage when a voltage of the current input terminal of the third transistor is higher than the second DC voltage; a first Zener diode having a cathode connected to the control terminal of the third transistor and an anode connected to a ground (GND) terminal to supply a bias voltage of the third transistor; a fourth resistor connected between a terminal, from which the first DC voltage is generated, and the control terminal of the third transistor to supply the bias voltage of the third transistor; a fourth capacitor connected between the control terminal of the third transistor and the GND terminal to suppress temporary fluctuation of a voltage of the control terminal of the third transistor; and a fifth resistor connected between the terminal, from which the first DC voltage is generated, and a current input terminal of the third transistor to restrict a voltage of the current input terminal of the third transistor, and wherein the control signal is generated from a current output terminal of the third transistor.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 91.0
- Lexical Diversity: 2.62712
- Patent Class: 315.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12537801', '15429686', '16097450', '15596813', '14306108']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7242122779608579
- 35 USC 102 Novelty (BERT): 0.4807849444234872
- Combined Prediction Score: 0.6998695446071208
- Mean Citation Score: 184.654182
- Max Citation Score: 197.41977
- Similarity Product: 153.37468845152202

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

Dataset: test