Inventor

IP EZRA

US43 patents

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

IP EZRA

NEC LAB AMERICA INC

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

Method to increase the signal to noise ratio of distributed acoustic sensing by spatial averaging

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

Bi-directional transmission over an elliptical core optical fiber

Multimode elliptical core optical data transmission

Method and apparatus for remote sensing using optical orbital angular momentum (OAM)-based spectroscopy for detecting lateral motion of a remote object

Neural network transfer learning for quality of transmission prediction

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

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

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

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

Mitigation of multi-path interference from quasi-single-mode fiber using hybrid span configuration and digital signal processing

IP EZRA

Polarization-switched differential ternary phase-shift keying

Nonlinear compensation using an enhanced backpropagation method with subbanding

HUANG YUE-KAI

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

Variable line-rate optical transmitter by modulation format hopping using electrical-optical-electrical EOE generated QAM Signal

JI PHILIP N

Power optimization of optical receivers

BAI NENG

Multimode optical amplifier with close-loop modal gain control

CVIJETIC NEDA

Symmetric coherent OFDMA-PON configuration with low-speed ONU-side