PATENT CLAIM ANALYSIS

Application Number: 16128650
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-05
Patent Classification: ["315", "20900R"]

Abstract:
A circuit includes a power supply circuit and a ripple reduction circuit. The power supply circuit supplies a Direct Current (DC) lighting current to a light emitting circuit. The lighting current has a ripple current at a ripple frequency. The ripple reduction circuit receives the lighting current, and performs, based on the received lighting current, Pulse Width Modulation (PWM) of the lighting current at a PWM frequency. The PWM frequency is higher than the ripple frequency. By performing the PWM, the ripple reduction current reduces variations in a magnitude of the lighting current at the ripple frequency. The PWM frequency may be higher than a frequency at which variations in the magnitude of the light produced by the lighting circuit have a harmful effect on the human eye.

Claim (Index 9):
A circuit comprising:\n a ripple reduction circuit to receive a lighting current flowing through a light emitting circuit, the lighting current having a ripple current, the ripple current having a ripple frequency, the ripple reduction circuit comprising:\n a switching device to control the lighting current according to a Pulse Width Modulation (PWM) signal, \n a Current Sense (CS) circuit to produce a CS signal according to a magnitude of the lighting current, \n a CS integrator to generate, by integrating the CS signal over a duration, an integrated CS signal, and \n a PWM signal generation circuit to generate, according to a PWM clock signal and the integrated CS signal, the PWM signal, \n wherein the ripple reduction circuit operates to reduce a magnitude of the ripple current at the ripple frequency.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 97.0
- Lexical Diversity: 2.55357
- Patent Class: 315.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14750580', '15206940', '13360477', '12099729', '13285425']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6730638827813583
- 35 USC 102 Novelty (BERT): 0.498693625107269
- Combined Prediction Score: 0.6556268570139494
- Mean Citation Score: 219.050602
- Max Citation Score: 230.58034
- Similarity Product: 173.35325465266945

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