Inventor

INADA YOSHIHISA

JP43 patents

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

INADA YOSHIHISA

NEC LAB AMERICA INC

Fiber sensing using supervisory path of submarine cables

Single-step nonlinearity compensation using artificial intelligence for digital coherent transmission systems

Optical fiber nonlinearity compensation using neural networks

Low density parity check coded modulation for optical communications

Integrated 3-way branching unit switch module having small footprint

Estimating mode field distribution in optical fibers from guided acoustic wave brillouin scattering

Constellation designs with non-gray bit mapping

Three-way branching unit switch module having small footprint

Transmission filtering using machine learning

C-band and L band amplifier design with increased power efficiency and reduced complexity

Multicore fiber amplifier with high power efficiency

Constellation optimization based on generalized mutual information over a nonlinear optical channel

Method for reducing GAWBS noise by reducing polarization diffusion length

Hybrid quantum cryptography protocol for optical communications

Method and system for modulation-independent carrier phase recovery

Optical spectral shaping for nonlinearity enhancement in high speed digital coherent optical transmissions

Generation of polarization-alternated QPSK format

Optical fiber exhibiting low guided acoustic Brillouin scattering (GAWBS) noise and measurement thereof

Accurate measurement for guided acoustic-wave Brillouin scattering

Estimating core-cladding concentricity error in optical fibers using guided acoustic-wave Brillouin scattering

3D waveguide for efficient coupling of multimode pump and signals to a multicore fiber amplifier

Fiber nonlinearity mitigation using strong mode coupling and large modal delay

Fiber sensing by monitoring polarization function of light on supervisory path of cables

Wavelength division multiplexing system and method including wavelength monitoring

Iterative decoding for cascaded LDPC and TCM coding

Pair-wise symbol correlated high receiver sensitivity modulation format

Polarization switching for optical fiber communications

Data transport using pairwise optimized multi-dimensional constellation with clustering

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

NEC CORP

Cross phase modulation suppressing device in wavelength division multiplexing optical transmission system and optical communication system

Optical amplification device and light amplification method

Optical transmission system, method for analyzing thereof, terminal station device, and management device

Wavelength division multiplexing optical transmission apparatus and wavelength division multiplexing optical transmission method

Optical transmission system, method for analyzing thereof, terminal station device, and management device

Optical transmission system, method for analyzing thereof, terminal station device, and management device

Optical communication device, optical communication system and optical transmission method

Polarization multiplexing optical transmitter and operation control method

Communication system and method for controlling communication system

Optical fiber transmission line for wavelength division multiplexing signals

IP EZRA

Polarization-switched differential ternary phase-shift keying

ZHANG SHAOLIANG

Multiple-symbol polarization switching for differential-detection modulation formats

YAMAN FATIH

Polarization-alternating optical signal generation using CSRZ modulation

INADA YOSHIHISA

DPSK optical receiver