Nippon Telegraph and Telephone Corporation

Hitachi, Ltd.

Ntt Corporation

Globeride, Inc.

Takuya Oda

Takafumi Tanaka

Fumikazu Inuzuka

Akira Hirano

Tetsuro Inui

Shokei Kobayashi

Masayuki Shimoda

Kei Kitamura

Yutaka Miyamoto

Hidehiko Takara

Wataru Imajuku

Shoukei Kobayashi

Takuya Ohara

Hideki Nishizawa

Seiji Okamoto

Daisuke Iizuka

Seiki Kuwabara

Kengo Shintaku

Yukihisa Miya

Wataru Kawakami

Hitoshi Kamei

Yohsuke Ishii

Masahito Tomizawa

Tadashi Takeuchi

Masanori Takata

Hiroyasu Nishiyama

Akiyoshi Tsuchiya

Takuji Kawamura

Michiko Tanaka

Nobuhiro Izaki

Nobuaki Kohinata

Takaaki Haruna

Yasushi Miyata

Kazuhito Yokoi

Go Kojima

Takuya Komatsuda

Hiromu Hota

Katsuaki Higashimori

One aspect of the present invention is an information processing system including a computing machine installed in a computing machine base, a first transmission/reception device connected to the computing machine, a second transmission/reception device installed in a user base used by a user, a device connected to the second transmission/reception device, and a delay control device configured to measure a delay amount generated between the first transmission/reception device and the second transmission/reception device and control the measured delay amount.

Information processing system, delay control device, information processing method and program

A communication system is a communication system that includes: a plurality of transmission devices; a setting server that receives an instruction to change data related to setting of a data network; and a control server that performs a control process related to the plurality of transmission devices and the data network on a basis of the data. In the communication system, a setting processing unit is provided to perform a process for constructing a customer control network between a first transmission device and the setting server by using a second transmission device as a relay device, when the first transmission device and the second transmission device are connected by an optical transmission line. The first transmission device includes: a connection processing unit that performs a process for constructing a control network between the first transmission device and the control server by using the second transmission device as a relay device, when the first transmission device and the second transmission device are connected by the optical transmission line; and a device control unit that performs a process for constructing the data network for the first transmission device by using the second transmission device as a relay device, when the first transmission device and the second transmission device are connected by the optical transmission line.

Communication system, communication method and program

An optical path design device includes a scheduling unit configured to generate, according to demand information, including information on a frequency bandwidth required for communication between a first node device at a start point of an optical path and a second node device at an end point of an optical path, and including information on a future time zone in which the communication will be executed, allocation content including information on a route connecting the first node device and the second node device and information on a center frequency of the frequency allocated to the communication corresponding to the demand information and determine the start time and the end time of the allocation of the allocation content, and a queue for adjusting a timing of allocation of the allocation content in the future time zone based on the start time and the end time of the allocation in a case where the allocation content cannot be allocated to the communication corresponding to the demand information with the current time as the start time of the allocation.

Optical path design apparatus, optical path design method and program

A fishing state management device according to an embodiment of the present disclosure is a fishing state management device that comprises a grip portion and is provided on a fishing rod to which a fishing line having a fishing hook is attached at an end, and comprises: a vibration generation unit that is provided on the grip portion and generates vibration in the grip portion; a detection unit that is provided on the fishing rod and detects a fishing state comprising at least movement and vibration of the fishing rod to generate data regarding the fishing state; a recording unit that records the data regarding the fishing state; and a processing unit that transmits a vibration generation signal to the vibration generation unit based on the data regarding the fishing state.

Fishing condition management device, fishing rod provided with same, and fishing condition management system

To provide a fishing state detection/transmission device that is capable of being provided on a fishing rod, detecting the above-described fishing state accurately and reliably, and transmitting the fishing state to the fishing person. There is provided a fishing state detection/transmission device according to an embodiment of the disclosure that comprises a grip portion and is provided on a fishing rod to which a fishing line having a fishing hook is attached at an end, the fishing state detection/transmission device comprising: a vibration generation unit that is provided on the grip portion and generates vibration in the grip portion; a first detection unit that is provided on the fishing rod and detects movement or vibration of the fishing rod to generate first time-series data; and an information processing unit that transmits a vibration generation signal to the vibration generation unit on a basis of the first time-series data.

Fishing condition detection and transmission device

An optical transmission system including an optical transmission device and an optical reception device that receives, via an optical transmission line, a signal transmitted from the optical transmission device, the optical transmission system including a transmission-mode selection unit that selects transmission mode information in descending order of priority out of transmission mode information, which is combinations of a plurality of parameters concerning transmission performance, the transmission mode information being a plurality of kinds of the transmission mode information common to the transmission performance of the optical transmission device and the optical reception device, a signal transmission unit that transmits, to the optical reception device, a signal modulated based on the selected transmission mode information, and a signal reception unit that receives the signal and modulates the received signal based on the transmission mode information selected by the transmission-mode selection unit.

Optical transmission system and transmission mode selecting method

An aspect of the present invention is a communication path search device that constructs a multicast path of a plurality of nodes connected to a network, the communication path search device including a network device information management unit configured to manage a device specification including constraint information on the number of branches of each of the nodes on the network, a network topology management unit configured to manage link information between the nodes on the network, and a multicast tree calculation unit configured to construct a Steiner tree of a path connecting a start node and an end node based on a new request, an existing request, the constraint information on the number of branches of each of the nodes, constraint information on a maximum number of branches of each of the nodes, and the link information, the new request and the existing request each including start node and end node information.

Communication path finding device, communication path finding method, and program

Distribution devices are each connected to a single or a plurality of line switching networks and a single or a plurality of packet switching networks, selects either the line switching network or the packet switching network as the distribution destination on the basis of distribution policy information in a case where data to which the service providing device or the calculation device is set as a transmission destination, and transmits the received data to the selected switching network is received, and the distribution device captures the received data on the basis of the aggregation policy information and transmit the data to the service providing device or the calculation device corresponding to the transmission destination of the captured data in a case where data transmitted by the other distribution device is received from the line switching network or the packet switching network.

Communication system, distribution device, data distribution method and program

One aspect of the present invention is an information processing system that includes a computing machine installed in a computing machine base, and a first transmitting/receiving apparatus connected to the computing machine, a second transmitting/receiving apparatus installed in a user base that is used by a user, and a device connected to the second transmitting/receiving apparatus, and a control apparatus configured to control connection between the first transmitting/receiving apparatus and the second transmitting/receiving apparatus. In the information processing system, the control apparatus is configured to change the connection between the first transmitting/receiving apparatus and the second transmitting/receiving apparatus, and copy the state of the pre-change computing machine from the pre-change computing machine into the post-change computing machine.

Information processing system, information processing method and program

One aspect of the present invention is an information processing system including a computer installed in a computer base, a first transceiver connected to the computer, a second transceiver installed in a user base used by a user, a device connected to the second transceiver, a network configured to perform communication between a plurality of the first transceivers and the second transceiver, and a controller configured to control connection between one of the plurality of the first transceivers and the second transceiver, in which the controller is configured to control connection between one of the plurality of the first transceivers and the second transceiver via the network having a circuit switching function.

A transmission apparatus includes a control unit for carrying out processing to secure a resource for a standby system path in response to detection of a sign of failure in an active system path.

Transmission apparatus and transmission method

A transfer device includes a detection unit configured to detect a sign of a failure in a link between transfer devices, and a management unit configured to update a routing table to lower a priority of a path via the link when the sign of the failure is detected by the detection unit.

Failure transfer apparatus, failure transfer system, and failure transfer method

A transmission apparatus includes a first communication unit, a second communication unit, a detection unit, a control unit, and a selection unit. The first communication unit uses a first path for communication, when electric power is supplied. The second communication unit uses a second path for communication, when electric power is supplied. The detection unit detects a fault predictive sign. The control unit supplies no electric power to the second communication unit when the detection unit does not detect the fault predictive sign. The control unit starts supplying electric power to the second communication unit and performs normality confirmation of the second path when the detection unit detects the fault predictive sign, before switching from the first path to the second path. The selection unit selects and outputs, when the first communication unit and the second communication unit have received signals, either the signal received by the first communication unit or the signal received by the second communication unit.

An estimation method includes: generating information regarding success or not success in a connectivity checking test between 'N' nodes in a case in which a failure occurs in a verification target path including the nodes, the information being generated as pattern information for each failure location; selecting “M” network devices from among a plurality of network devices in accordance with occurrence of the failure; executing the connectivity checking test between the selected network devices; comparing a checking result of the connectivity checking test with pattern information that satisfies “N=M” in the pattern information; and estimating the failure location in the service path based on the failure location associated with the pattern information in a case in which the pattern information that satisfies “N=M” matches the checking result.

Growing community of inventors

Tokyo, Japan

Takuya Oda