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1. 发明授权

US10310931B2 Communications state estimation device, communications state estimation method, and storage medium that stores communications state estimation program 有权
公开(公告)号：US10310931B2
公开(公告)日：2019-06-04
申请号：US15318799
申请日：2015-06-11
申请人： NEC Corporation
发明人： Hirofumi Ueda , Shunichi Kinoshita , Norio Yamagaki , Kazumine Ogura , Norihito Fujita
IPC分类号： G06F11/00 , G06F11/07 , H04L29/06 , H04W24/06 , H04W24/08 , H04L1/00 , H04L1/18 , H04W24/04
摘要： Provided are a communications state determination device, etc., capable of improving the accuracy of network state specification. This communications state estimation device comprises: a setting means that, in accordance with given communications parameters, applies the communications parameters to a communications device that determines the occurrence of communications errors in communications with a communications destination device; a detection means that sends communications instructions to the communications device that performs communications, in accordance with received communications instructions, and detects the occurrence of communications errors that have been determined in the communications that are in accordance with the instructions; and an estimation means that estimates whether or not the communications device can perform the communications, on the basis of the communications parameters and the existence or otherwise of communications errors.

2. 发明申请

US20150257142A1 METHOD FOR EXCHANGING INFORMATION BETWEEN COMMUNICATION TERMINALS, AND COMMUNICATION TERMINAL 有权
标题翻译：用于交换通信终端之间的信息的方法和通信终端
公开(公告)号：US20150257142A1
公开(公告)日：2015-09-10
申请号：US14434029
申请日：2013-06-13
申请人： NEC CORPORATION
发明人： Hirofumi Ueda , Norihito Fujita
IPC分类号： H04W72/04 , H04W48/10 , H04W76/02
CPC分类号： H04W72/0406 , H04W40/24 , H04W48/10 , H04W76/15 , H04W84/18
摘要： Upon sensing an update of any routing information entry held in a routing information storage unit (A104), an information exchange coordination unit (A105) references a node information storage unit (A102), and if a node information entry corresponding to the updated routing information entry does not exist, acquires the corresponding node information entry from another communication terminal (A1b). Alternatively, upon sensing an update of any node information entry held in the node information storage unit (A102), the information exchange coordination unit (A105) references the routing information storage unit (A104), and if a routing information entry corresponding to the updated node information entry does not exist, acquires the corresponding routing information entry from another communication terminal (A1b). This provides a communication terminal for acquiring both the node information entry and the routing information entry relating to a specific communication terminal substantially at the same time.
摘要翻译：一旦检测到路由信息存储单元（A104）中保存的任何路由信息条目的更新，信息交换协调单元（A105）参考节点信息存储单元（A102），并且如果与更新的路由信息相对应的节点信息条目条目不存在，从另一通信终端（A1b）获取对应的节点信息条目。或者，信息交换协调单元（A105）在检测到保存在节点信息存储单元（A102）中的任何节点信息条目的更新时，参照路由信息存储单元（A104），如果与更新的路由信息节点信息条目不存在，从另一通信终端（A1b）获取相应的路由信息条目。这提供了一种通信终端，用于基本上同时获取与特定通信终端相关的节点信息条目和路由信息条目。

3. 发明申请

US20230017839A1 RISK ANALYSIS RESULT DISPLAY APPARATUS, METHOD, AND COMPUTER READABLE MEDIA 有权
公开(公告)号：US20230017839A1
公开(公告)日：2023-01-19
申请号：US17785492
申请日：2019-12-25
申请人： NEC Corporation
发明人： Ryo Mizushima , Hirofumi Ueda , Tomohiko Yagyu
IPC分类号： G06F21/57 , G06F21/55
摘要： A risk analysis result display apparatus, a risk analysis result display method, and a computer readable medium capable of enabling a user to recognize changes in risk in a system are provided. A risk analysis result (13) is a risk analysis result obtained by assessing a risk to a system to be analyzed in a first assessment period. A risk analysis result (14) is a risk analysis result obtained by assessing the risk to the system to be analyzed in a second assessment period different from the first assessment period. Comparison means (11) compares the risk analysis result (13) with the risk analysis result (14), and extracts a difference between the risk analysis result (13) and the risk analysis result (14). Output means (12) displays the difference extracted by the comparison means (11) for a user.

4. 发明授权

US09451529B2 Route information exchange method, communication terminal, and non-transitory computer-readable medium storing route information exchange program 有权
标题翻译：路由信息交换方法，通信终端和存储路由信息交换程序的非暂时性计算机可读介质
公开(公告)号：US09451529B2
公开(公告)日：2016-09-20
申请号：US14358663
申请日：2012-10-18
申请人： NEC Corporation
发明人： Hirofumi Ueda , Norihito Fujita
IPC分类号： H04W40/24 , H04L12/751 , H04L12/715 , H04W84/18
CPC分类号： H04W40/246 , H04L45/02 , H04L45/04 , H04W84/18
摘要： Upon receiving a routing control message from another communication terminal (B1), a communication terminal (A1) uses a MANET routing control unit (A133) to update and manage route information when a routing domain described in the routing control message matches the routing domain of the communication terminal (A1) itself. When the communication terminal itself does not belong to the routing domain, the communication terminal uses a DTN routing control unit (A132) to update and manage route information to another routing domain, and uses a route information advertisement unit (A134) to advertise the route information to another routing domain and the routing domain to which the communication terminal (A1) itself belongs, for another communication terminal (B1).
摘要翻译：当从另一通信终端（B1）接收到路由控制消息时，通信终端（A1）使用MANET路由控制单元（A133）来更新和管理路由信息，当路由控制消息中描述的路由域与通信终端（A1）本身。当通信终端本身不属于路由域时，通信终端使用DTN路由控制单元（A132）来更新和管理到另一路由域的路由信息，并且使用路由信息通告单元（A134）来通告路由另一个通信终端（B1）的另一个路由域和通信终端（A1）本身所属的路由域的信息。

5. 发明授权

US10225786B2 Delay tolerant network (DTN) and ad-hoc node device 有权
公开(公告)号：US10225786B2
公开(公告)日：2019-03-05
申请号：US15108531
申请日：2014-12-05
申请人： NEC Corporation
发明人： Norihito Fujita , Norio Yamagaki , Hirofumi Ueda , Shunichi Kinoshita
IPC分类号： H04W40/34 , H04W40/00 , H04B1/713 , H04L12/26 , H04M1/725 , H04W40/18 , H04W84/18
摘要： A node device has a delivery predictability management part, a DTN communication part, and a user interface part. The delivery predictability management part stores, for each destination node, delivery predictabilities including a delivery predictability for the destination node calculated by a local node and a delivery predictability for the destination node calculated by a neighboring node. The DTN communication part refers to the delivery predictabilities for each destination node and selects a next hop node in transferring transfer data from the local node to the destination node. The user interface part allows selection of a destination node for DTN communication with the local node as a source node on a basis of the delivery predictabilities for each destination node.

6. 发明授权

US10172148B2 Communication terminal, communication method, storage medium on which communication program is stored, and communication system 有权
公开(公告)号：US10172148B2
公开(公告)日：2019-01-01
申请号：US15321877
申请日：2015-06-22
申请人： NEC Corporation
发明人： Norio Yamagaki , Shunichi Kinoshita , Hirofumi Ueda , Norihito Fujita
IPC分类号： H04W72/12 , H04W72/02 , H04W74/08 , H04W74/02 , H04W84/12 , H04L12/46 , H04J3/00
摘要： A data-storing-terminal counting unit counts the number of communication terminals in which each of a number of data are stored. Based on the results of the counts, a communication terminal count estimation unit estimates the number of communication terminals that will transmit data with the same timing. An adjustment reference value calculation unit computes an adjustment reference value for constraining the number of communication terminals estimated by the communication terminal count estimation unit to be less than or equal to a preset allowable number. On the basis of the adjustment reference value computed by the adjustment reference value calculation unit, a determination unit determines whether or not to permit transmission of data stored by a storing means. If the determination unit permits the transmission of said data, a data transmission unit transmits the data to a communication terminal in which said data is not stored.

7. 发明授权

US09860158B2 Path information exchange method, communication node, communication system, and communication node program 有权
公开(公告)号：US09860158B2
公开(公告)日：2018-01-02
申请号：US14767136
申请日：2014-03-04
申请人： NEC Corporation
发明人： Hirofumi Ueda , Norihito Fujita
IPC分类号： H04L12/715 , H04W40/32
CPC分类号： H04L45/04 , H04L45/46 , H04L45/64 , H04W40/32
摘要： The purpose of the present application is to provide a technique for the exchange of path information between different routing domains, which, while reducing the exchange of useless path information in the stage for constructing a hierarchical structure, can maintain robustness of path recognition that tolerates network partition. Of the management communication node identifiers which are described in hierarchical information included in a path control message received from a neighboring communication node and in hierarchical information held by the local communication node and which indicate a communication node that manages each level of the hierarchicalized network structure, the identifier indicating the highest level communication node and the identifier indicating the transmission source communication node are used to identify whether the routing domain to which the aforementioned neighboring communication node belongs is the same as the routing domain of the local communication node, and if the routing domain to which the aforementioned neighboring communication node belongs is different from the routing domain of the local communication node, the path information held by the local communication node is made known.

8. 发明申请

US20170116063A1 COMMUNICATIONS STATE ESTIMATION DEVICE, COMMUNICATIONS STATE ESTIMATION METHOD, AND STORAGE MEDIUM THAT STORES COMMUNICATIONS STATE ESTIMATION PROGRAM 审中-公开
公开(公告)号：US20170116063A1
公开(公告)日：2017-04-27
申请号：US15318799
申请日：2015-06-11
申请人： NEC Corporation
发明人： Hirofumi Ueda , Shunichi Kinoshita , Norio Yamagaki , Kazumine Ogura , Norihito Fujita
IPC分类号： G06F11/07 , H04W24/08
CPC分类号： G06F11/079 , G06F11/0709 , G06F11/0751 , H04L1/00 , H04L1/1874 , H04L1/1887 , H04L29/06 , H04L69/163 , H04W24/04 , H04W24/06 , H04W24/08
摘要： Provided are a communications state determination device, etc., capable of improving the accuracy of network state specification. This communications state estimation device comprises: a setting means that, in accordance with given communications parameters, applies the communications parameters to a communications device that determines the occurrence of communications errors in communications with a communications destination device; a detection means that sends communications instructions to the communications device that performs communications, in accordance with received communications instructions, and detects the occurrence of communications errors that have been determined in the communications that are in accordance with the instructions; and an estimation means that estimates whether or not the communications device can perform the communications, on the basis of the communications parameters and the existence or otherwise of communications errors.

9. 发明申请

US20220391515A1 RISK ANALYSIS RESULT DISPLAY APPARATUS, METHOD, AND COMPUTER READABLE MEDIUM 有权
公开(公告)号：US20220391515A1
公开(公告)日：2022-12-08
申请号：US17762417
申请日：2019-09-27
申请人： NEC Corporation
发明人： Ryo Mizushima , Hirofumi Ueda , Tomohiko Yagyu
IPC分类号： G06F21/57
摘要： A comparison means compares a first risk analysis result with a second risk analysis result. The first risk analysis result includes a first risk evaluation value. The second risk analysis result includes a second risk evaluation value. Based on the result of the comparison, a display means displays the first risk evaluation value in such a manner that a first risk evaluation value for which there is a second risk evaluation value, in the second risk analysis result, for an attack step of which an attack destination coincides with an asset included in the first risk analysis result and an attack method coincides with an attack method included in the first risk analysis result can be distinguished from a first risk evaluation value for which there is no such second risk evaluation value.

10. 发明授权

US09807780B2 Data sharing system 有权
公开(公告)号：US09807780B2
公开(公告)日：2017-10-31
申请号：US14437346
申请日：2013-10-17
申请人： NEC Corporation
发明人： Norihito Fujita , Hirofumi Ueda
IPC分类号： H04W72/04 , H04W72/12 , H04L29/08
CPC分类号： H04W72/12 , H04L67/1097
摘要： A request possibility determination unit 13 for a communications terminal 1-1 determines whether or not communications time required for obtaining data from a communications terminal 1-2 can be secured, between the communications terminal 1-2 and the communications terminal 1-1. A data acquisition unit 12: determines data that has not been stored in a data storage unit 14, among data on a list received as a result of a communications message from another communications terminal 1-2; and requests the determined data from the communications terminal 1-2, by using a communications message on the condition that the request possibility determination unit 13 has determined that communications time can be secured.

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