PATENT CLAIM ANALYSIS

Application Number: 15742261
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-06
Patent Classification: ["356", "072000"]

Abstract:
In a gas detection device and a gas detection method of the present invention, frequency-modulated detection light is irradiated while being scanned, a light reception output signal obtained by receiving reflected light of the detection light is subjected to phase-sensitive detection, a resulting detection output signal is sampled, and detection target gas GA is detected on the basis of a sampling result. A modulation frequency of the detection light is controlled on the basis of a scanning speed.

Claim (Index 14):
A gas detection method, comprising:\n a detection light irradiation step of irradiating detection light frequency-modulated using a predetermined frequency as a center frequency while scanning the detection light along a predetermined scanning direction; a light reception step of receiving reflected light of the detection light by an object; a phase-sensitive detection step of performing a phase-sensitive detection of a light reception output signal obtained in the light reception step; a sampling step of sampling a detection output signal obtained in the phase-sensitive detection step; a gas detection step of detecting detection target gas on the basis of a sampling result obtained in the sampling step; a distance measurement step of measuring a distance to the object; and a control step of controlling the detection light irradiation step such that the detection light is frequency-modulated at a higher modulation frequency as the distance to the object measured in the distance measurement step becomes longer.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 86.0
- Lexical Diversity: 1.86667
- Patent Class: 356.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13488105', '15751353', '13488125', '11723542', '15310653']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6922037981238253
- 35 USC 102 Novelty (BERT): 0.4614867394501841
- Combined Prediction Score: 0.6691320922564612
- Mean Citation Score: 172.98236200000005
- Max Citation Score: 182.07645
- Similarity Product: 151.39691432959734

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