Nippon Telegraph and Telephone Corporation

Ryota Ishibashi

Takeshi Kuwahara

Naoki Higo

Takuma Tsubaki

Yuki Nakahara

Kotaro Ono

Toshimitsu Tsubaki

Yoshiko Sueda

Kenta Kawakami

Yusuke Urata

Masao Aihara

Kojun Koshiji

A video distribution device according to an embodiment is a video distribution device that distributes videos from a plurality of cameras installed in each of a plurality of vehicles that perform autonomous driving to a terminal, and includes a probability of collision calculating unit that calculates a probability of collision indicating a probability of the vehicles colliding with an object by a predetermined time of day, a selecting unit that selects, out of the videos of the plurality of cameras, video from a camera installed in a vehicle of which the probability of collision is highest, and a control unit for setting video quality of the video of the selected camera to be high.

Video distribution apparatus, video distribution method and program

A control device includes an information acquisition unit that receives a source address of a packet from a node that receives the packet transmitted from a user terminal, and acquires position information about the user terminal on a basis of the source address, a determination unit that determines a hub to which the user terminal should connect, on a basis of the position information, and a control execution unit that launches an application in the hub and changes a routing such that packets transmitted from the user terminal are transmitted to the application.

Control apparatus, control method and program

Backup system and method that can determine a backup destination in consideration of disaster are provided. There are provided: a data acquisition unitthat acquires disaster information, network information, and node information; a replication group construction unitthat generates, based on the disaster information, and the like, replication group information including association information between a first node that stores original data and one or more second nodes that are candidates for backup destination of the original data, and saves the replication group information in a storage unit; a replication destination node calculation unitthat, when executing backup of the original data, calculates the second node as backup destination from the replication group; and a replication processing unitthat replicates and stores the original data into the storage of the second node.

Backup system, method therefor, and program

A system and method capable of efficiently using and operating resources and allowing a cluster satisfying requirements of functions/services provided to terminals to be configured of multi-access edge computing (MEC) servers are provided. A clustering systemincludes a monitoring unitconfigured to monitor a usage status of MEC servers and a network and store telemetry information in a storage unit, a cluster planning request unitconfigured to acquire non-telemetry information such as provision area information and requirement information of functions/services and deployment information of the MEC server, store the non-telemetry information in the storage unit, a cluster planning unitconfigured to set a virtual region including one or more bases satisfying a provision area and requirements on the basis of each piece of information in the storage unitand calculate a cluster plan for providing the functions/services from a plurality of MEC servers disposed at the base belonging to the virtual region, and a cluster construction unitconfigured to perform a clustering process on the basis of the cluster plan.

Clustering system and clustering method for providing services using multi- access edge computing servers

A resource allocation device includes: a course estimation unit that estimates a course of each mobile terminal based on a location of a mobile terminal acquired from a network device, and estimates a probability that each mobile terminal is located in each area at time of prediction; a determination unit that calculates, for each area, the number of mobile terminals in the area using the probability and determines whether the maximum value of an overcommit ratio for each area exceeds an upper limit; and an execution unit that executes the allocation or release of resources to an MEC server group located in each area when the maximum value of the overcommit ratio is equal to or less than the upper limit, and refrains from executing the allocation or release of the resources to the MEC server group when the maximum value of the overcommit ratio exceeds the upper limit.

Resource allocation apparatus, resource allocation method and resource allocation program

Provided is a remote control system and a method enabling packets, related to a control signal and simultaneously transmitted from a controller to a plurality of controlled devices, to be received by the controlled devices without a difference in delay. Edge nodes that are packet transfer devices are provided on communication paths between a controller provided on a network and a plurality of controlled devices provided in a location. The edge nodes each include a transfer processing unit that transfers the packets from the controller to the controlled devices, and a timing control unit that controls transmission timing of the packets in the transfer processing unit to reduce a difference in arrival time of a plurality of packets simultaneously transmitted from the controller to the plurality of controlled devices, at the plurality of controlled devices.

Remote control system and method

Provided is a virtual world construction system that does not impair consistency between virtual worlds and places only small loads on terminals. A client applicationthat is implemented on a user terminal, a plurality of server applicationsthat are implemented on servers, and a proxythat is located on a communication path between the user terminal and the servers and relays operation information and video information are provided. The proxyincludes a motion duplication unitthat transmits operation information to the plurality of servers by duplicating the operation information, and a video integration/rendering control unitthat transmits timing information regarding rendering timing to the plurality of servers, and transmits video information received from at least one of the servers, to the user terminals. A rendering processing unit/video processing unitof each of the servers performs rendering processing and video information transmission processing based on the timing information received from the proxy

Virtual world construction system and method

A packet processing system and method for enabling real-time packet processing while preventing an unnecessary delay increase are provided. A terminal-and a terminal-that transmit different types of packets in real time, a communication devicethat processes packets transmitted by the terminal-, and a packet processing devicedisposed in a communication path of the packet from the terminal-and the terminal-to the communication device. The packet processing devicedetermines a processing method for the packets received from the terminal-based on the packets received from the terminal-, creates a processing method determination table, and creates a processing method list. The terminal information packet processing unitprocesses the packets received from the terminal-per packet unit based on the processing method list.

Packet processing system and method

In one aspect of the present invention, a transfer apparatus includes a reception unit configured to receive a packet from a source which distributes data according to a transmission control protocol (TCP); a storage unit configured to store data included in the received packet in a buffer based on a TCP sequence number of the received packet; a TCP transfer unit configured to transfer the received packet to a first sink which requests distribution according to the TCP; and a UDP transfer unit configured to read the data from the buffer and transfer the read data to a second sink which requests distribution according to a user datagram protocol (UDP).

Transfer apparatus, transfer method, and program for transporting data from a single source to sinks with different communication requirements

A data distribution system including a source configured to distribute data and a sink configured to process the distributed data includes a marker configured to receive a packet distributed by the source, add supplementary information to the received packet based on information obtained from a header of the packet, and transfer the packet; and a filter configured to receive the packet transferred by the marker, determine whether the received packet can be transferred to the sink based on the supplementary information added to the packet, transfer the packet to the sink if the packet can be transferred to the sink.

Growing community of inventors

Tokyo, Japan

Ryota Ishibashi