Inventor

HUANG YUE-KAI

US57 patents

⚠️ This page may combine multiple inventors who share the name “HUANG YUE-KAI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HUANG YUE-KAI

NEC LAB AMERICA INC

Optical nyquist superchannel generation using microwave low-pass filtering and optical equalization

Distributed acoustic sensing in a multimode optical fiber using distributed mode coupling and delay

Distributed acoustic sensing in a multicore optical fiber using distributed mode coupling, delay, and simultaneous pulsing with selectable spatial modes

Photonic filter bank for high-speed analog-to-digital conversion

High-speed multi-level electronic signal generation for optical communications

Parallel digital coherent detection using symmetrical optical interleaver and direct optical down conversion

Repeater design for distributed acoustic sensing on multispan fiber links

Rayleigh fading mitigation via short pulse coherent distributed acoustic sensing with multi-location beating-term combination

Fiber sensing using supervisory path of submarine cables

Optical fiber sensing system with reduced spatial resolution and noise for multiple application uses

Optical fiber sensing systems, methods, structures and applications

Physical layer key distribution for long distance repeated networks using random environmental instability

Low-complexity brillouin optical time-domain reflectometers using syb-nyquist sampling

Bi-directional transmission over an elliptical core optical fiber

Neural network transfer learning for quality of transmission prediction

Transmission filtering using machine learning

Long distance distributed fiber optic sensing (DFOS) and WDM communications over repeated fiber spans using all-raman amplification and coding schemes

Optical square QAM signal emulation using all-optical PAM to QAM signal conversion

Optical phase conjugation aided long-haul transmission system with enhanced signal-to-noise ratio and nonlinear tolerance

High-speed optical 8-QAM modulation by cascading dual-drive mach-zehnder modulator with I/Q modulator

Fast optical cable identification using acoustic pen

Laser frequency drift compensation in forward distributed acoustic sensing

Vibration sensing over passive optical networks (PONs) using forwarding optical phase retrieval and time-domain multiplexed (TDM) switching

Vibration detection using phase recovered from an optical transponder with coherent detection

Suppressed out-of-band level for increasing loss margin and stable ABC operation of coded DFOS system

Distributed acoustic sensing using multi-band time-gated digital orthogonal frequency domain reflectometry

Bidirectional optical communication and sensing WDM architecture using same fiber transmission band

Performance of Rayleigh-based phase-OTDR with correlation-based diversity combining and bias removal

Multi-frequency coherent distributed acoustic sensing (DAS) with single transmitter / receiver pair using offset Tx / Rx frequency framing scheme

Constant amplitude coded DFOS using out-of-band signaling

High speed frequency hopping DAS interrogation using AOM-gated re-circulating loop and frequency-shifted receiver LO

Extending system reach of unrepeated systems using cascaded amplifiers

Optical network performance evaluation using a hybrid neural network

G-OSNR estimation on dynamic PS-QAM channels using hybrid neural networks

Distributed fiber optic sensing enabled self-coherent detection for data centers

Distributed acoustic sensing sensitivity enhancement using MIMO sampling and phase recombination

Frequency-drift compensation in chirped-pulse-based distributed acoustic sensing

Distributed acoustic sensing using dynamic range suppression

Laser noise reduction for laser interferometry

Spatial averaging method for coherent distributed acoustic sensing

Polarization diversity combining method in coherent DAS maintaining phase continuity

Amplifier dynamics compensation for brillouin optical time-domain reflectometry

Bidirectional optical communication and sensing WDM architecture using same fiber transmission band

Repeaterless passive optical add/drop multiplexed fiber network

RF sub-band de-multiplexing for ultra-wide band optical digital coherent detection

Intra-transceiver optical superchannel switching via RF sub-band multiplexing technique

Joint transmitter and receiver map algorithm for enhancing filtering tolerance in a bandwidth-limited system

CVIJETIC NEDA

POLMUX-OFDM-DD transmitter and receiver for reduced complexity and overhead in optical access/metro transmission

HUANG YUE-KAI

Digital signal-to-signal beat noise reduction for filter-less coherent receiving system

SAPERSTEIN ROBERT

Parallel optical polarization tracking