Nippon Telegraph and Telephone Corporation

Joled Inc.

Tetsuro Nakamura

Naoki Takada

Hiroyuki Yamakita

Kei Fujimoto

Shunsuke Itakura

Teruo Nanmoku

Shogo Saito

Mizuki Ikegaya

A communication system in which a server-side system and a client-side system are communicably connected via a network, the server-side system including: an information reception unit that receives an input information packet including input information and loss chunk numbers from the client-side system; a video processing unit that generates video data; a chunking function unit that chunks the video data and assigns a number to each chunk; a chunk loss determination unit that calculates a chunk loss rate and determines a transmission interval on the basis of a transmission interval determination logic; and a transmission control unit that transmits the chunked video data to the client-side system.

Communication system, communication method, server, client terminal, and program

A patch controller, when removal of a to-be-deleted node on a virtual path is detected, extracts a node immediately before deletion located adjacently to and on an upstream side of the to-be-deleted node on the virtual path and a node immediately after deletion located adjacently to and on a downstream side of the to-be-deleted node, forms a bypass path for discharging a queued packet being processed by the to-be-deleted node to the node immediately after deletion, and a changed path excluding the to-be-deleted node from the virtual path, by making a connection so as to cause a transfer packet from the node immediately before deletion to flow to the node immediately after deletion, and prioritizes processing of discharging the queued packet to the node immediately after deletion on the bypass path over processing of transferring the transfer packet to the node immediately after deletion on the changed path.

Function coordination device, virtual machine communication system, and function coordination method

Disclosed herein is a display device including a display panel having a display portion configured to display an image, a plate-shaped member having a first principal surface and a second principal surface, the display panel being disposed on a second principal surface side, the plate-shaped member including a screen portion disposed in a position corresponding to the display portion, an opaque frame member disposed at a peripheral edge of the screen portion, a bonding member that has transparency and is configured to bond the display panel and the plate-shaped member to each other, a holding member disposed on the second principal surface side of the plate-shaped member, and a fixing member configured to fix the frame member and the holding member to the plate-shaped member, the plate-shaped member further including a transparent peripheral edge portion disposed on an outside of the frame member.

Display device

A cache usage indicator calculation apparatus () includes: a memory for reading and writing data; a cache that can be accessed more rapidly than the memory; a central processing unit configured to read and write from and to the memory and the cache and execute processing; a usage state measurement unit configured to measure a usage state of the cache used by an application () executed by the central processing unit; a performance measurement unit configured to measure a cache sensitivity and/or a cache pollutivity relating to an application (); and an indicator calculation unit configured to, based on a performance deterioration of a pre-selected plurality of applications and the usage state of the cache, calculate an indicator for the cache sensitivity and/or an indicator for the cache pollutivity of each application.

Cache usage index calculation device, cache usage index calculation method, and cache usage index calculation program

Performance optimization is achieved by clarifying cache usage characteristics of each application from usage conditions of physical resources (caches) in real time and automatically controlling the cache usage amount of each application. Thus, a system includes a main memory to and from which data is written and read, a level 3 cache memory which can be accessed faster than the main memory, a CPU core configured to execute processing by performing write and read to and from the memory and the cache, a usage amount measurement unit configured to measure a usage condition of a cache of each virtual machine (to) executed by the CPU core, an allocation amount calculation unit configured to calculate cache capacity to be allocated to each virtual machine (to) from the usage condition, and a control unit configured to allocate the cache capacity to each virtual machine (to).

Cache tuning device, cache tuning method, and cache tuning program

[Problem] In reconfiguration of a tree structure in a relational database, to reduce a service response-disabled time by an update lock, and to maintain data retrieving and reading performance without deterioration. [Solution] A tree structure data processing deviceof a tree structure data processing systemincludes a process thread setting unit and a synchronization state management unit. The process thread setting unit starts and performs a request process thread for retrieval processing with reference to a nested set data table and starts and performs a request process threadfor updating data of a naive tree data table. The synchronization state management unit switches a state of the request process threadto a synchronization waiting state when receiving synchronization waiting instruction information indicating start of a synchronization process between the naive tree data table and the nested set data table. A synchronization device includes a synchronization processing unit that converts data of the naive tree data table updated in response to an update request into data of the nested set data table to perform synchronization.

Tree structure data processing system, tree structure data processing method, tree structure data processing device, and tree structure data processing program

[Problem] Available resources are efficiently used even in a case in which continuous available resources cannot be secured on a cloud. [Solution] A resource reservation management apparatusincludes: a storage unit that stores a resource capacity and resource reservation information of a computing machine; a reservation notification unitthat receives, from a user terminal, reservation request information including an operating requested time period, an operating time, and a requested specification as a reservation of a master lease; a scheduling unitthat creates slave leases by splitting the operating time of the master lease in accordance with times corresponding to available resources indicated in the resource reservation information and sets the slave leases in the resource reservation information; a reservation management unit that detects occurrence of predetermined events including stop, shift, restart, and deletion of the created instances by referring to the resource reservation information; and an instance management unitthat transmits instruction information in accordance with an instance creation instruction and the detected predetermined events to the computing machine

Growing community of inventors

Musashino, Japan

Tetsuro Nakamura