公开(公告)号：US20210019878A1

公开(公告)日：2021-01-21

申请号：US17043319

申请日：2019-03-05

Applicant: NEC Corporation

Inventor： Yohei IIZAWA

IPC: G06T7/00 ,  G06K9/62 ,  G06N20/00

Abstract: An image processing device 500 includes: a normal image acquisition means 501 which acquires a normal image including an object for inspection in a normal condition; an anomaly simulated image generation means 502 which inserts, into the normal image, a simulated image of an anomaly feature of the object for inspection in an anomaly condition to generate an anomaly simulated image; and a model learning means 503 which, using the normal image and the anomaly simulated image, learns a reproduction model for generating, from part of an image containing the object for inspection, a reproduction image is an image including at least a predetermined region of the object for inspection in which the predetermined region in a normal condition is reproduced.

公开(公告)号：US20180062876A1

公开(公告)日：2018-03-01

申请号：US15557672

申请日：2016-03-10

Applicant: NEC CORPORATION

Inventor： Yohei IIZAWA ,  Kazuya SUZUKI

IPC: H04L12/46 ,  H04L12/24 ,  G06F9/455 ,  H04L12/717

CPC classification number: H04L12/4641 ,  G06F9/45558 ,  G06F2009/45595 ,  H04L41/0856 ,  H04L41/12 ,  H04L45/38 ,  H04L45/42 ,  H04L45/64 ,  H04L47/82

Abstract: A control apparatus comprises a creation unit creates a virtual network on the basis of the state of physical resources and a resource separation unit separates resources allocated to the virtual networks created by the creation unit for each virtual network.

公开(公告)号：US20190097917A1

公开(公告)日：2019-03-28

申请号：US16088110

申请日：2017-03-23

Applicant: NEC Corporation

Inventor： Yohei IIZAWA ,  Kazuya SUZUKI

IPC: H04L12/707 ,  H04L12/703

Abstract: A network system according to one example embodiment of the present invention in a multilayer network having an upper layer and a lower layer each including a plurality of links in which each of the plurality of links on the upper layer is associated with a plurality of paths on the lower layer, and the network system includes: a candidate link selection unit that, when at least one path of the plurality of paths on the lower layer associated with one link of the plurality of links on the upper layer does not overlap with an active path on the upper layer, selects the one link as a candidate link; and a backup path determination unit that uses the candidate link to determine a backup path for the active path on the upper layer.

公开(公告)号：US20170310597A1

公开(公告)日：2017-10-26

申请号：US15521735

申请日：2015-10-29

Applicant: NEC CORPORATION

Inventor： Masaharu MORIMOTO ,  Kazuya SUZUKI ,  Yohei IIZAWA

IPC: H04L12/801 ,  H04L12/931 ,  H04L12/709 ,  G06F17/00 ,  H04L12/26

CPC classification number: H04L47/196 ,  G06F17/00 ,  H04L43/00 ,  H04L45/02 ,  H04L45/245 ,  H04L45/507 ,  H04L45/586 ,  H04L45/64 ,  H04L47/825 ,  H04L49/602 ,  H04L69/321

Abstract: The objective of the invention is to enable sharing, between layers in a network in which the layers are used to perform communications, resource information and information required for using paths. A network control system includes: a lower layer information storage unit, a lower layer control information conversion unit, an upper layer information storage unit, an upper layer control information conversion unit, an integrated layer information storage unit and a layer integration unit. The layer integration unit integrates, as virtual links, the information of flows, which are representative of communications among terminals in the lower layer, with the network information of the upper layer, thereby constituting the network information of the integrated layer. Further, the layer integration unit performs reciprocal exchanges of network information among the integrated layer information storage unit, the lower layer information storage unit and the upper layer information storage unit, said reciprocal exchanges including a process of giving, as the attribute information of the ports of the upper layer, label information required for using the virtual link provided by the lower layer.

公开(公告)号：US20220413480A1

公开(公告)日：2022-12-29

申请号：US17783105

申请日：2019-12-25

Applicant: NEC Corporation

Inventor： Yohei IIZAWA

IPC: G05B23/02

Abstract: A time series data processing system according to the present invention includes a learning unit configured to learn so as to generate a model that takes, of time series data measured from a measurement target, boundary period time series data that is time series data of a boundary period between a normal period and an anomalous period as an input and outputs a teaching signal determined by a preset function in accordance with change of time of the boundary period time series data. The normal period is a period in which the measurement target is determined to be in a normal state. The anomalous period is a period in which the measurement target is determined to be in an anomalous state.

公开(公告)号：US20160241469A1

公开(公告)日：2016-08-18

申请号：US15025960

申请日：2014-10-20

Applicant: NEC Corporation

Inventor： Yohei IIZAWA

IPC: H04L12/715 ,  H04L12/713 ,  H04L12/751 ,  H04L12/709

CPC classification number: H04L45/64 ,  H04L45/02 ,  H04L45/245 ,  H04L45/586

Abstract: [Problem] To provide a multi-layer network control method and device whereby it is possible to add a lower layer path in accordance with a path which is requested in an upper layer.[Solution] With respect to controlling a multi-layer network formed from networks of a plurality of layers, virtual links (L901-L903) are generated in an upper layer network on the basis of topology information of a lower-order network. If at least one virtual link is included in a given path (F701) in the upper layer network, lower layer paths (L601, L602) corresponding to the virtual link are set in the lower layer network.

Abstract translation: [问题]提供一种多层网络控制方法和装置，由此可以根据在上层中请求的路径添加下层路径。 [解决方案]关于控制由多层网络形成的多层网络，基于较低级网络的拓扑信息，在上层网络中生成虚拟链路（L901〜L903）。 如果在上层网络中的给定路径（F701）中包含至少一个虚拟链路，则在下层网络中设置与虚拟链路对应的下层路径（L601，L602）。