17 Patents
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- US124808082025Laser Frequency Drift Compensation in Forward Distributed Acoustic Sensing
NEC Corporation
0 cites - US124426812025Distributed Fiber Optic Sensing Enabled Self-coherent Detection for Data Centers
NEC Corporation
0 cites - US124051362025Vibration Sensing Over Passive Optical Networks (pons) Using Forwarding Optical Phase Retrieval and Time-domain Multiplexed (TDM) Switching
NEC Corporation
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- US122872342025Distributed Acoustic Sensing Sensitivity Enhancement Using MIMO Sampling and Phase Recombination
NEC Corporation
0 cites - US121352342024Frequency-drift Compensation in Chirped-pulse-based Distributed Acoustic Sensing
NEC Corporation
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- US119825522024Vibration Detection Using Phase Recovered from an Optical Transponder with Coherent Detection
NEC Corporation
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- US119209752024Repeater Design for Distributed Acoustic Sensing on Multispan Fiber Links
NEC Corporation
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- US116928672023Polarization Diversity Combining Method in Coherent DAS Maintaining Phase Continuity
NEC Corporation
0 cites - US116648932023Suppressed Out-of-band Level for Increasing Loss Margin and Stable ABC Operation of Coded DFOS System
NEC Corporation
0 cites - US115669372023Rayleigh Fading Mitigation via Short Pulse Coherent Distributed Acoustic Sensing with Multi-location Beating-term Combination
NEC Corporation
0 cites - US115432872023Distributed Acoustic Sensing Using Multi-band Time-gated Digital Orthogonal Frequency Domain Reflectometry
NEC Corporation
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