PATENT CLAIM ANALYSIS

Application Number: 15874672
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-06
Patent Classification: ["356", "073100"]

Abstract:
A method of improving measurement speed of distributed optical fiber sensors by adopting orthogonal signals and the system thereof is disclosed, which is related to the optical fiber sensor field and solves the problems that conventional technology will increasing the bandwidth of the received signal, reducing the signal-to-noise ratio of the received signal or distortion the spatial resolution of the system. The method comprises steps of generating N periodic orthogonal optical pulse sequence; injecting the N periodic orthogonal optical pulse sequence into the optical fiber under test( 5 ); collecting the scattered light signal; demodulating the scattered light signal with the local oscillating light and then converting into digital signals; extracting the scatter information of the orthogonal optical pulses from the collected digital signals; and arranging the scattered information in order of precedence of the infusion. The measurement speed of the distributed optical fiber sensors is improved by N−1 times.

Claim (Index 10):
The system, as recited in  claim 9 , wherein the signal optical path detection unit comprises a circulator ( 4 ) connected to the modulation unit ( 3 ); a 90-degree optical hybrid ( 7 ) connected to the narrow linewidth laser ( 1 ) and a third port of the circulator ( 4 ) respectively; the optical fiber under test ( 5 ) connected to a second port of the circulator ( 4 ); a balance detector ( 8 ) connected to the 90-degree optical hybrid ( 7 ); a data acquisition card ( 9 ) or an oscilloscope connected to the balance detector ( 8 );\n wherein the modulation unit ( 3 ) and the 90-degree optical hybrid ( 7 ) are connected to the narrow linewidth laser ( 1 ) through a 90/10 coupler ( 2 ); the modulation unit ( 3 ) is connected to a 90% port of the 90/10 coupler ( 2 ); the 90-degree optical hybrid ( 7 ) is connected to a 10% port of the 90/10 coupler ( 2 ).

Metadata:
- Claim Count in Document: 3.0
- Percentile: 86.0
- Lexical Diversity: 1.91667
- Patent Class: 356.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16066119', '15548519', '10332028', '11132937', '14118538']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7206894296386883
- 35 USC 102 Novelty (BERT): 0.4825073285669978
- Combined Prediction Score: 0.6968712195315193
- Mean Citation Score: 190.64222
- Max Citation Score: 199.98369
- Similarity Product: 147.71832692421555

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

Dataset: test