Davis, California
United States
55
2026-02-19
The entities that hold a legal rights for patent applications filed by inventor Hu Junqiang:
Junqiang Hu from Davis, US has applied for patents for these inventions. The list has both pending applications and granted patents:
REAL-TIME DATA TRANSFER SCHEME FROM LIMITED POWER EMBEDDED SYSTEMS
#2 | 2025-12-18HETEROGENEOUS COMPUTATION PLATFORM FOR HIGH DEFINITION DISTRIBUTED ACOUSTIC FIBER SENSING
#3 | 2025-12-04EFFICIENT PROCESSING RESOURCE USAGE IN LONG RANGE, MULTI-BAND BACKSCATTERING FIBER SENSING
#4 | 2025-12-04SIGNAL INTERLEAVING METHOD IN MULTI-BAND DAS USING CORRELATION-BASED POLARIZATION
#5 | 2025-09-11DYNAMIC SEGMENTED DFOS OPERATION ON BIDIRECTIONAL WDM MULTI-SPAN FIBER LINKS USING FIBER NETWORK ROADMs
#6 | 2025-04-17CASCADED DFOS TO REDUCE SYSTEM COST AND INCREASE SENSING REACH
#7 | 2024-09-12AUTOMATIC CALIBRATION FOR BACKSCATTERING-BASED DISTRIBUTED TEMPERATURE SENSOR
#8 | 2024-07-25LASER FREQUENCY DRIFT COMPENSATION IN FORWARD DISTRIBUTED ACOUSTIC SENSING
#9 | 2024-07-11FAST OPTICAL CABLE IDENTIFICATION USING ACOUSTIC PEN
#10 | 2023-11-23MULTI-BAND DAS WITH ENHANCED SNR, INCREASED SAMPLING RATE AND MINIMIZED INTER-LOCATION INTERFERENCE
#11 | 2023-07-20Two stage processing distributed fiber optic sensing (DFOS) interrogator for acoustic modulated signals
#12 | 2023-05-18AUTOMATIC FIBER END POINT DETECTION USING COHERENT OPTICAL TIME DOMAIN REFLECTOMETRY
#13 | 2022-10-06Suppressed out-of-band level for increasing loss margin and stable ABC operation of coded DFOS system
#14 | 2022-09-01Active microphone for increased DAS acoustic sensing capability
#15 | 2022-08-04Physimetric-based data security for coded distributed temperature sensing
#16 | 2022-06-16Spatial averaging method for coherent distributed acoustic sensing
#17 | 2022-05-12Reduced complexity polarization combining method for coherent DAS
#18 | 2022-04-28Saturation caused phase jump avoidance in DAS
#19 | 2022-04-21Polarization diversity combining method in coherent DAS maintaining phase continuity
#20 | 2021-11-18COMPLEX AND PHASE DOMAIN VIBRATION STRENGTH ESTIMATION FOR COHERENT DISTRIBUTED ACOUSTIC SENSING
#21 | 2021-10-14TWO STAGE PROCESSING DISTRIBUTED FIBER OPTIC SENSING (DFOS) INTERROGATOR FOR ACOUSTIC MODULATED SIGNALS
#22 | 2021-08-19Distributed optical fiber sensing using point sensors
#23 | 2021-04-29Efficient transfer of sensor data on dynamic software defined network (SDN) controlled optical network
#24 | 2020-11-26Rayleigh fading mitigation via short pulse coherent distributed acoustic sensing with multi-location beating-term combination
#25 | 2020-08-06Uni-directional signal transmit method using distributed fiber sensing
#26 | 2020-08-06Optical fiber sensing system with reduced spatial resolution and noise for multiple application uses
#27 | 2020-01-02Distributed fiber sensing interrogator with detachable end
#28 | 2020-01-02Two stage detection method for distributed vibration detection
#29 | 2017-07-27Indoor Positioning System with Fast Plan Mapping
#30 | 2017-07-27Networked systems for monitoring fire extinguisher operational readiness
#31 | 2017-07-27Apparatus, methods, and systems for monitoring fire extinguisher operational readiness
#32 | 2016-10-13Mechanism for remote safety monitoring sensor with low-power consumption communication
#33 | 2016-10-13Reference signal generation for lock-in amplifier in high sensitivity gas sensing system
#34 | 2015-06-25Scalable hybrid packet/circuit switching network architecture
#35 | 2015-06-25Flexible-client, flexible-line interface transponder
#36 | 2015-04-16Burst switching system using optical cross-connect as switch fabric
#37 | 2015-03-26Eliminating External Buffer for Hitless Protection by Using Channelized Flow Control
#38 | 2015-03-12Hitless service in a variable rate optical transponder
#39 | 2015-02-26Reconfigurable and variable-rate shared multi-transponder architecture for flexible ethernet-based optical networks
#40 | 2015-02-12Combining I-Q and/or PolMux optical receiver to enable single detector
#41 | 2014-12-11Receiver bit alignment for multi-lane asynchronous high-speed data interface
#42 | 2014-11-13Adaptive optical amplifier for WDM systems
#43 | 2014-10-16Optical network switching using N:N transponder through time-domain multiplexing and burst mode access
#44 | 2014-10-09Elastic client interface for tunable optical transponder
#45 | 2013-07-04Solution for hitless protection in high-speed OTN framer and front-end
#46 | 2013-04-11Polarization switching for optical fiber communications
#47 | 2013-04-04Hitless protection for traffic received from 1+1 protecting line cards in high-speed switching systems
#48 | 2012-10-11Energy efficient OFDM transceiver
#49 | 2012-05-10System and method for frequency-domain chromatic dispersion and polarization mode dispersion compensation with time-domain channel estimation
#50 | 2012-04-05K-Means Clustered Polyphase Filtering for Sample Rate Conversion in Coherent Polarization Multiplexing Fiber Optic Systems
#51 | 2011-12-22Systems and methods for performing parallel digital phase-locked-loop
#52 | 2011-12-15Method for source synchronous high-speed signal synchronization
#53 | 2010-08-05Polarization independent frequency domain equalization (FDE) for chromatic dispersion (CD) compensation in PolMux coherent systems
#54 | 2008-10-30Orthogonal frequency division multiple access (OFDMA) based passive optical network (PON) architecture and its extension to long distance
#55 | 2008-07-10WDM passive optical network with parallel signal detection for video and data delivery
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