Nippon Telegraph and Telephone Corporation

Toshiaki Tsuchiya

Masahiro Kobayashi

Katsuyuki Machida

Junichi Takahashi

Hideo Namatsu

Kazushige Minegishi

Kazuo Imai

Nobuhiro Shimoyama

Yasuo Takahashi

Takumi Kimura

Katsunori Noritake

Katsumi Murase

Ryutaro Matsumura

Hiroshi Inoue

Seisho Yasukawa

Hiroyuki Kitada

Kenichi Endo

Takafumi Okuyama

Shinji Nakamura

Tadao Takeda

Sadao Nakashima

Terukazu Ohno

Tetsushi Sakai

Yuichi Kado

Takemi Ueki

A system control device that transmits a manifest file describing information necessary for acquiring video data to a viewing client in a system that performs distribution of the video data via a network includes: generation means for generating the manifest file on the basis of at least one of identification information indicating a viewer attribute, a time zone, and a state of the system according to a prescribed control policy; and transmission means for transmitting the manifest file generated by the generation means to the viewing client.

System control apparatus, system control method and program

A quality information collecting system acquiring video data distributed in response to a viewing request and collecting quality-related information regarding video viewing from a viewing client playing back a video includes a quality information control functional unit configured to determine whether or not to request the viewing client having made a viewing request to report quality-related information, based on a network communication situation in which the video data is distributed, and a quality information collecting and analysis functional unit configured to receive, in accordance with a determination of the quality information control functional unit, the quality-related information transmitted from the viewing client.

Quality information collection system, quality information collection method and program

A resource allocation method includes splitting requirements into split requirements for each subsection of a physical network. The subsections of the physical network each have one of a plurality of policies applied to them. The method includes calculating a resource allocation for each of the subsections based on the split requirements, integrates a result of the allocations to determine a plurality of solutions candidates for resource allocations based on the split requirements, evaluates, for each solution candidate, compliance with the one of the plurality of policies, and selects one of the solution candidates based on the evaluation.

Resource allocation device and resource allocation method

A route calculation control device includes a calculator configured, among a plurality of nodes constituting a physical network having a plurality of sections to which respective policies different from each other are applied when allocating resources, based on a policy corresponding to a section including a start point node specified in a use request of the resources of the physical network, to calculate a route from the start point node to an end point node specified in the use request; and a controller configured to replace the start point node, among nodes constituting the route calculated by the calculator, with a first node included in a section different from the section including the start point node, so as to cause the calculator to calculate a route to the end point node. This enables to allocate resources to a network that includes multiple sections to which different policies are applied.

Route calculation control device and route calculation control method

A resource allocation device is provided that, responsive to a use request for resources of a network, the use request having a pair of nodes as terminal points designated among a plurality of nodes constituting the network, searches for one or more candidate paths between the terminal points, with which amounts of the resources related to the use request can be allocated, in a state where the resources that have been allocated to one or more other use requests are set aside from the network. The device calculates, for each of the one or more searched-for-candidate paths, in a state where the resources are allocated to the candidate path, a maximum number of paths that can be allocated between the terminal points of a virtual path related to the service, and selects the candidate path with which a sum total of the maximum numbers of paths becomes greatest.

A method of manufacturing an SOI substrate uses an SOI substrate having a first single-crystal silicon layer, an insulating layer formed on the first single-crystal silicon layer, and a second single-crystal silicon layer formed on the insulating layer. The surface of the second single-crystal silicon layer is thermally oxidized. The second single-crystal silicon layer is controlled to have a predetermined thickness by removing the thermally oxidized surface. This step controlling the second single-crystal silicon layer to have a predetermined thickness includes the step of eliminating, by annealing, a stacking fault formed by the thermal oxidation.

Method of manufacturing SOI substrate

A semiconductor device includes an interlevel film constituted by a first dielectrics film containing dangling bonds and a bonded group of Si and hydrogen, and a second dielectrics film formed on the first dielectrics film.

Semiconductor device and method of farbricating the same

Method of fabricating semiconductor device with water protective film

Semiconductor device and method of fabricating the same

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Musashino, Japan

Toshiaki Tsuchiya