Inventor

AOKI YASUHIKO

JP57 patents

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

AOKI YASUHIKO

FUJITSU LTD

Optical packet switching system

Apparatus and method for monitoring wavelength tunable optical filter

Optical transmission system, method of testing optical transmission system, and non-transitory computer-readable medium

Optical power monitor, optical power control system and optical power monitor method

Optical apparatus and optical cross connect apparatus

Optical switch system

Light source apparatus, and method for switching redundancy of the light source

Optical network with selective mode switching

Apparatus and method for creating calibration coefficient used to monitor optical signal-to-noise ratio

Optical transport apparatus and optical-wavelength defragmenting method

Communication device and wavelength adjustment method

Optical transmission device, node device, optical transmission method, and optical transmission system

Optical transmission system, optical transmission apparatus, signal conditioning program, and signal conditioning method

Optical signal demodulator, optical signal demodulating method, and optical add-drop multiplexer

Network controller and signal quality estimating method

Device and method for monitoring transmission characteristics

Device and method for monitoring optical signal quality, and optical transmission device

Optical switching transmission system with timing correction

Optical transmission system and optical transmission method

Optical switching transmission system with timing correction

Optical module and optical switch

Optical network with sub-band rejection and bypass

Method and system for management of directly connected optical components

Coupler-based optical cross-connect

Optical communication system, transmission station, and method of optical communication

Method of wavelength selection control and wavelength variable filter device

Optical switch apparatus and optical switching system

Optical switch apparatus and optical switching system

Information processing system, calculation node, and control method of information processing system

Optical network system

Apparatus and method for estimating optical transmission performance

Optical transmission apparatus, optical transmission system, and control method of optical transmission system

Optical add/drop device

Network controller and signal quality estimating method

Optical signal-to-noise ratio monitor and method for measuring optical signal to-noise ratio

Optical transmission characteristic measurement device and method

Optical signal quality monitoring apparatus, optical signal quality monitoring method and optical repeater

Optical line termination, communication system, and communication control method

AOKI YASUHIKO

Optical transmitting device and optical receiving device

Optical transmission apparatus and analog-to-digital conversion apparatus

Frame generating apparatus, optical transmission system, frame generating method, and optical transmission method

Transceiver apparatus, communication control method, and concentrator

Optical transmission apparatus and optical interleaving control method

SUMITOMO CHEMICAL CO

Method for synthesis of optically active thiolactones

Process for preparing hexahydrothieno[3,4-d]imidazole-2,4-diones

FUJITSU NETWORK COMMUNICATIONS

Distributed raman amplifier for optical network and method

KAI YUTAKA

Optical switching device

TAKEUCHI OSAMU

Optical transmission apparatus and method

CHANG RUI CHU

Joint wireless and fixed network optimization for heterogeneous cellular networks

KOGANEI YOHEI

Optical transmission system and optical transmission method