Patents/Inventors

Junqiang Hu

Davis, CAUS12 patents

12 Patents

US125872762026
Fast Optical Cable Identification Using Acoustic Pen
NEC Corporation
0 cites
US124808082025
Laser Frequency Drift Compensation in Forward Distributed Acoustic Sensing
NEC Corporation
0 cites
US122560022025
Physimetric-based Data Security for Coded Distributed Temperature Sensing
NEC Corporation
0 cites
US120785262024
Reduced Complexity Polarization Combining Method for Coherent DAS
NEC Corporation
0 cites
US120254882024
Two Stage Processing Distributed Fiber Optic Sensing (DFOS) Interrogator for Acoustic Modulated Signals
NEC Corporation
0 cites
US117330882023
Spatial Averaging Method for Coherent Distributed Acoustic Sensing
NEC Corporation
0 cites
US117368672023
Active Microphone for Increased DAS Acoustic Sensing Capability
NEC Corporation
0 cites
US116928672023
Polarization Diversity Combining Method in Coherent DAS Maintaining Phase Continuity
NEC Corporation
0 cites
US116748272023
Saturation Caused Phase Jump Avoidance in DAS
NEC Corporation
0 cites
US116648932023
Suppressed Out-of-band Level for Increasing Loss Margin and Stable ABC Operation of Coded DFOS System
NEC Corporation
0 cites
US115669372023
Rayleigh Fading Mitigation via Short Pulse Coherent Distributed Acoustic Sensing with Multi-location Beating-term Combination
NEC Corporation
0 cites
US115432852023
Distributed Optical Fiber Sensing Using Point Sensors
NEC Corporation
0 cites