Nippon Telegraph and Telephone Corporation

Shogo Saito

Naoki Takada

Tetsuro Nakamura

Kei Fujimoto

Mizuki Ikegaya

A controller server includes an assignment unit that assigns devices connected to a server to virtual machines, a usage status management unit that records correspondence between the virtual machines and devices used by the virtual machines, a warning relation management unit that records types of warnings that may occur for each of the devices during maintenance, a maintenance control unit that determines an order of an instruction for suppressing issuance of a warning that may occur for the devices during maintenance and an instruction for evacuating an affected virtual machine among the virtual machines to another server, a warning exclusion setting unit that instructs the server to exclude issuance of a warning that may occur for a device due to the maintenance, and an affected user specification evacuation unit that specifies the affected virtual machine, and evacuates the affected virtual machine from the server to the another server.

Server maintenance control device, server maintenance system, server maintenance control method, and program

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.

Growing community of inventors

Musashino, Japan

Shogo Saito