公开(公告)号：US20220066431A1

公开(公告)日：2022-03-03

申请号：US17418370

申请日：2018-12-28

Applicant: NEC Corporation

Inventor： Shohei MITANI ,  Satoru YAMANO

IPC: G05B23/02

Abstract: An estimation apparatus 1 includes: a normal index estimation unit 2 configured to estimate, using a second variable output by a second component 21 that influences a first variable output by a first component 21, an index A indicating that the first variable is achieved at a normal time; and an abnormality propagation information estimation unit 3 configured to estimate abnormality propagation information expressing an index indicating that an abnormality propagates to a third variable output by a third component 21 influenced by the first component 21, by changing the first variable.

公开(公告)号：US20240259375A1

公开(公告)日：2024-08-01

申请号：US18290363

申请日：2021-05-20

Applicant: NEC Corporation

Inventor： Shohei MITANI ,  Taniya SINGH ,  Nakul GHATE ,  Hirofumi UEDA

IPC: H04L9/40

CPC classification number: H04L63/10

Abstract: A policy generation apparatus according to one example embodiment of the present disclosure includes at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: acquire, regarding a plurality of elements related to access control, relation data indicating a relation between a plurality of elements and score data that defines at least one of a score which is based on a viewpoint of risk of access or a score which is based on a viewpoint of a need for access; and generate a policy for access control using the relation data and the score data.

公开(公告)号：US20230421595A1

公开(公告)日：2023-12-28

申请号：US18039208

申请日：2020-12-02

Applicant: NEC Corporation

Inventor： Shohei MITANI ,  Hirofumi UEDA ,  Taniya SINGH

IPC: H04L9/40

CPC classification number: H04L63/1433

Abstract: A network control apparatus (10) according to the present disclosure is a network control apparatus (10) configured to control a node included in a network, and the network control apparatus (10) includes a collecting unit (11) configured to collect data pertaining to a node included in a network, a calculating unit (12) configured to calculate a security index pertaining to a threat of the node based on the data collected by the collecting unit (11), and a determining unit (13) configured to determine a zone of the node based on the security index calculated by the calculating unit (12).

公开(公告)号：US20220318277A1

公开(公告)日：2022-10-06

申请号：US17635568

申请日：2019-08-22

Applicant: NEC Corporation

Inventor： Takashi KONASHI ,  Satoru YAMANO ,  Shohei MITANI

IPC: G06F16/28 ,  G06F16/22 ,  G07C5/08

Abstract: An information processing device according to an aspect of the present disclosure includes: at least one memory; and at least one processor configured to execute instructions to: acquire a plurality of parameters indicating a state of a device; and extract a combination including two or more parameters from the plurality of parameters based on a dependency relationship between two parameters among the plurality of parameters.

公开(公告)号：US20180026736A1

公开(公告)日：2018-01-25

申请号：US15546745

申请日：2016-02-18

Applicant: NEC Corporation

Inventor： Shohei MITANI ,  Nobuhito TANIUCHI ,  Masaaki MARUYAMA

IPC: H04J3/16 ,  H04W76/02 ,  H04W72/04

CPC classification number: H04J3/1694 ,  H04L12/189 ,  H04W4/04 ,  H04W36/18 ,  H04W52/02 ,  H04W72/04 ,  H04W72/0446 ,  H04W76/10 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/164

Abstract: To provide a wireless communication system, a base station device, a mobile station device, and a wireless communication control method that use a time division multiple access scheme, and enable a reduction in the power consumption of the base station. This wireless communication system performs communication by a time division multiple access (TDMA) scheme, and comprises a mobile station, and a base station that communicates with the mobile station and stops transmission of a signal including control information related to communication connection when there is no mobile station therearound.

公开(公告)号：US20250063048A1

公开(公告)日：2025-02-20

申请号：US18723978

申请日：2022-01-26

Applicant: NEC Corporation

Inventor： Shohei MITANI ,  Hirofumi Ueda

IPC: H04L9/40

Abstract: An information processing apparatus according to an example embodiment of the present disclosure includes at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: acquire a data set in which a plurality of combinations of a pattern of a plurality of elements indicating an access attribute and an access control action associated with the pattern of the elements are defined and request a user to input an action associated with a pattern of an element not covered by the data set in a case in which the data set does not cover an action associated with one or more assumed patterns of an element.

公开(公告)号：US20240283792A1

公开(公告)日：2024-08-22

申请号：US18025162

申请日：2022-03-23

Applicant: NEC Corporation

Inventor： Shohei MITANI ,  Hirofumi UEDA ,  Nakul GHATE

IPC: H04L9/40

CPC classification number: H04L63/10

Abstract: An analysis apparatus according to an example embodiment of the present disclosure includes at least one memory configured to store instructions and at least one processor configured to execute the instructions to: acquire at least a data set in which a plurality of combinations of a first pattern of one or more elements indicating attributes of access and an action of access control corresponding to the first pattern are defined, and a second pattern of one or more elements indicating attributes of access that change over time; evaluate an execution cost when an action corresponding to the second pattern is changed over time by using at least transition information indicating a state transition in the one or more elements indicating attributes of access, and the second pattern; and determine the action corresponding to the second pattern by using at least a result of the evaluation and the data set.

公开(公告)号：US20210248385A1

公开(公告)日：2021-08-12

申请号：US17052957

申请日：2019-05-07

Applicant: NEC Corporation

Inventor： Takashi KONASHI ,  Satoru YAMANO ,  Shohei MITANI

IPC: G06K9/00 ,  G06N20/00

Abstract: A surveillance device according to the present invention includes: a memory; and at least one processor coupled to the memory. The processor performs operations. The operations includes: calculating, based on a value of a parameter that is contained in a received data frame and represents a state of an apparatus, a change in the state of the apparatus; and determining whether the change is included in an allowable range determined in accordance with the state of the apparatus before the change.

公开(公告)号：US20250068750A1

公开(公告)日：2025-02-27

申请号：US18723955

申请日：2022-01-26

Applicant: NEC Corporation

Inventor： Shohei MITANI ,  Hirofumi Ueda

IPC: G06F21/62

Abstract: An analysis apparatus according to an example embodiment of the present disclosure includes at least one memory configured to store instructions; and at least one processor configured to execute the instructions to acquire a data set in which a plurality of combinations of a first pattern of one or more elements indicating an access attribute and an access control action associated with the first pattern are defined, and a second pattern of one or more elements indicating an access attribute, and estimate at least one of an order or magnitude of the degree of influence of the second pattern influencing the action by using the data set and the second pattern.

公开(公告)号：US20240354182A1

公开(公告)日：2024-10-24

申请号：US18685320

申请日：2021-09-06

Applicant: NEC Corporation

Inventor： Shohei MITANI ,  Hirofumi UEDA

IPC: G06F11/07

CPC classification number: G06F11/0751 ,  G06F11/0793

Abstract: A causality search apparatus including: a causality information calculation unit that selects two different components from a plurality of components provided in a target system and calculating causality information indicating causality between the two selected components; and a causality information correction unit that corrects the causality information based on function information indicating functions respectively associated with the two selected components.