公开(公告)号：US20140185607A1

公开(公告)日：2014-07-03

申请号：US14133225

申请日：2013-12-18

Applicant: HITACHI, LTD.

Inventor： Daisuke MASHIMO ,  Kiyotaka TAKAHASHI ,  Takeshi SHIBATA ,  Yoshihiro ASHI

IPC: H04L12/751

CPC classification number: H04L45/10 ,  H04L41/0896 ,  H04L45/04 ,  H04L45/50

Abstract: In interworking systems that utilize IP/MPLS protocol processing to operate a centralized control server within a MPLS-TP network as a pseudo-router unit; a system improves the utilization rate of the MPLS-TP network by establishing default paths beforehand as a precondition to coupling between MPLS-TP network edge devices and mapping a plurality of IP/MPLS paths between the same edge devices to the common default paths when mapping to provide IP/MPLS network connectivity.

Abstract translation: 在使用IP / MPLS协议处理的互通系统中，将MPLS-TP网络内的集中控制服务器作为伪路由器单元进行操作; 系统通过预先建立缺省路径，提高MPLS-TP网络的利用率，作为MPLS-TP网络边缘设备之间耦合的前提条件，并将映射到同一边缘设备之间的多个IP / MPLS路径映射到公共默认路径 提供IP / MPLS网络连接。

公开(公告)号：US20240235950A9

公开(公告)日：2024-07-11

申请号：US18489314

申请日：2023-10-18

Applicant: Hitachi, Ltd.

Inventor： Daisuke MASHIMO ,  Masayuki TAKASE

IPC: H04L41/14 ,  H04L43/0852

CPC classification number: H04L41/145 ,  H04L43/0852

Abstract: An infrastructure design system includes an infrastructure design apparatus configured to generate infrastructure design information including information regarding a server infrastructure in which an application of a solution service is installed and a wireless communication infrastructure that connects the server infrastructure with a place where the solution service is used. The infrastructure design apparatus manages provision cost information regarding each of the wireless communication infrastructure and the server infrastructure, calculates estimated latency at a time of providing the solution service, on the basis of a communication delay between a solution service usage environment and the server infrastructure and a processing delay of the application, selects a combination of the wireless communication infrastructure and the server infrastructure on the basis of the estimated latency and a provision cost, and outputs the combination as infrastructure design information.

公开(公告)号：US20230422025A1

公开(公告)日：2023-12-28

申请号：US18122205

申请日：2023-03-16

Applicant: Hitachi, Ltd.

Inventor： Akihiro OHNUMA ,  Daisuke MASHIMO ,  Masayuki TAKASE ,  Yuji OISHI ,  Mikio KUWAHARA

IPC: H04W8/26

CPC classification number: H04W8/26 ,  G16Y20/20

Abstract: It is provided a network system that transfers data, the network system comprising: a first network; a second network connected with the first network and to which a server is connected; a third network connected with the first network and in which a terminal is accommodated; a terminal identification device, wherein the terminal identification device is configured to hold terminal identification information in which the address information of the gateway device in the first network, an identifier of the terminal, and the connection availability of the terminal to the second network are associated with each other, determine the connection availability of the terminal to the second network based on the terminal identification information, and acquire the address information of the gateway device in the first network and the identifier of the terminal from the gateway device to register or update the terminal identification information.

公开(公告)号：US20140086040A1

公开(公告)日：2014-03-27

申请号：US13941670

申请日：2013-07-15

Applicant: HITACHI, LTD.

Inventor： Kiyotaka TAKAHASHI ,  Daisuke MASHIMO ,  Yoshihiro ASHI

IPC: H04L12/24

CPC classification number: H04L41/0654 ,  H04L41/0663 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

Abstract: If, in a situation where the information about the OAM function of a first network including router networks is collected, a fault affecting a service used by a user occurs in a transmission network, which is a second network that acts as a relay for the first network and includes a plurality of transmission devices having a fault monitoring function, the transmission network promptly reports the fault to the router networks by actively using the OAM function of the router networks in order to achieve rapid fault recovery.

Abstract translation: 如果在收集包括路由器网络的第一网络的OAM功能的信息的情况下，影响用户使用的服务的故障发生在作为第一网络的继电器的第二网络的传输网络中 网络，包括具有故障监控功能的多个传输设备，传输网络通过主动使用路由器网络的OAM功能迅速向路由器网络报告故障，以实现快速故障恢复。

公开(公告)号：US20240137284A1

公开(公告)日：2024-04-25

申请号：US18489314

申请日：2023-10-17

Applicant: Hitachi, Ltd.

Inventor： Daisuke MASHIMO ,  Masayuki TAKASE

IPC: H04L41/14 ,  H04L43/0852

CPC classification number: H04L41/145 ,  H04L43/0852

Abstract: An infrastructure design system includes an infrastructure design apparatus configured to generate infrastructure design information including information regarding a server infrastructure in which an application of a solution service is installed and a wireless communication infrastructure that connects the server infrastructure with a place where the solution service is used. The infrastructure design apparatus manages provision cost information regarding each of the wireless communication infrastructure and the server infrastructure, calculates estimated latency at a time of providing the solution service, on the basis of a communication delay between a solution service usage environment and the server infrastructure and a processing delay of the application, selects a combination of the wireless communication infrastructure and the server infrastructure on the basis of the estimated latency and a provision cost, and outputs the combination as infrastructure design information.

公开(公告)号：US20190235514A1

公开(公告)日：2019-08-01

申请号：US16243109

申请日：2019-01-09

Applicant: Hitachi, Ltd.

Inventor： Tao LIN ,  Daisuke MASHIMO ,  Takashi NOMURA ,  Takamasa HIGASHI

IPC: G05D1/02 ,  G06F16/2455 ,  G05D1/00

CPC classification number: G05D1/0221 ,  B60W40/09 ,  G01C21/3407 ,  G05D1/0088 ,  G05D2201/0213 ,  G06F16/2455 ,  G08G1/096725 ,  G08G1/164 ,  G08G1/165 ,  G08G1/166

Abstract: An autonomous driving assistance apparatus includes: a status recognition unit that outputs status recognition information, including status information about a status of a vehicle and a peripheral status of the vehicle; a manual control unit that outputs operation information by manual operation; an experience information database that stores the status information belonging to the status recognition information and experience information about a control method for the vehicle to travel along a route by associating the status information with the experience information; an experience information registration unit that manages the experience information database; an experience information search unit that extracts the experience information corresponding to a search key from the experience information database by using the status information as the search key; and a control judgment unit that: judges whether autonomous driving traveling is possible or not, based on the experience information extracted by the experience information search unit.

公开(公告)号：US20180252539A1

公开(公告)日：2018-09-06

申请号：US15753978

申请日：2016-02-25

Applicant: Hitachi, Ltd.

Inventor： Shoji YUNOKI ,  Hideki ENDO ,  Hiroyuki KUBO ,  Shouta TAKAGI ,  Daisuke MASHIMO

IPC: G01C21/34 ,  B60W30/08 ,  B60W30/10 ,  G05D1/02

CPC classification number: G01C21/34 ,  B60W30/08 ,  B60W30/10 ,  G01C21/3415 ,  G01C21/3461 ,  G05D1/02 ,  G05D1/0214 ,  G05D1/0246 ,  G05D1/0274 ,  G05D2201/0213 ,  G06K9/00791 ,  G08G1/167

Abstract: A moving body control method for a moving body includes detecting position information and generating a surrounding map of surroundings of the moving body from map information corresponding to the position information, acquiring sensor information from a sensor and detecting non-map information from the sensor information, determining whether the traveling route can be calculated by adding the non-map information to the surrounding map and applying to the surrounding map first restriction information in which restrictions in setting a traveling route, if the moving body can calculate the traveling route, the first restriction information is applied to the surrounding map to calculate the traveling route, if the moving body cannot calculate the traveling route, second restriction information that relaxes restrictions in setting the traveling route is applied to the first restriction information to calculate the traveling route and the calculated traveling route is outputted to the traveling control module.

公开(公告)号：US20170359131A1

公开(公告)日：2017-12-14

申请号：US15438988

申请日：2017-02-22

Applicant: Hitachi, Ltd.

Inventor： Daisuke MASHIMO ,  Hideki ENDO ,  Hiroyuki KUBO

IPC: H04B17/309 ,  H04W24/08 ,  H04L29/08 ,  H04W88/08

CPC classification number: H04B17/309 ,  H04L69/14 ,  H04L69/323 ,  H04L69/324 ,  H04W24/08 ,  H04W48/18 ,  H04W88/08

Abstract: To stabilize data communication with a small delay while keeping communication cost low, it is provided a wireless communication terminal, which is capable of coupling to a plurality of wireless communication systems, comprising: a transmission buffer configured to store data to be transmitted; a determination module configured to determine communication quality of the plurality of wireless communication systems based on a result of comparison between an amount of data stored in the transmission buffer and a given threshold; a selection module configured to control a number of wireless communication systems to be used to transmit data, based on a result of the determination of the communication quality; and at least one wireless interface configured to transmit data via the controlled number of wireless communication systems.

公开(公告)号：US20130336321A1

公开(公告)日：2013-12-19

申请号：US13775703

申请日：2013-02-25

Applicant: HITACHI, LTD.

Inventor： Masahiro KIMURA ,  Daisuke MASHIMO

IPC: H04L12/56

CPC classification number: H04L45/02 ,  H04L45/04 ,  H04L45/42 ,  H04L45/50

Abstract: In a relay forward system, in setting a label switched path between edge nodes: information which is dependent on a user network such as routing information in the user network, which is also referred to as user network routing information, and information which is dependent on a label switching network such as a relay route of a label switched path and a path ID for specifying a label switched path, which is also referred to as internode path information are separated from each other; and are also managed separately in the whole relay forward system, to thereby control forwarding of a packet.

Abstract translation: 在中继转发系统中，在边缘节点之间设置标签交换路径：取决于用户网络的信息，例如用户网络中的路由信息​​，也称为用户网络路由信息，以及依赖于 诸如标记交换路径的中继路由的标签交换网络和用于指定标签交换路径的路径ID也被称为节点间路径信息彼此分离; 并且在整个中继转发系统中也分开管理，从而控制分组的转发。