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1. 发明专利

JP2011060061A Document information classification method and document information classification system 审中-公开
标题翻译：文件信息分类方法和文件信息分类系统
公开(公告)号：JP2011060061A
公开(公告)日：2011-03-24
申请号：JP2009209968
申请日：2009-09-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SASAKI YASUHIKO , KADOTA KAZUYA
IPC分类号： G06F17/30
摘要： PROBLEM TO BE SOLVED: To provide an explicit and efficient method for determining similarity in classifying documents on the basis of the similarity of content.
SOLUTION: The number of common keywords between documents is used as a threshold to inspect and classify group identity of directly or indirectly coupled documents. The documents are classified while changing the common keyword threshold stepwise, to classify a whole document group while suppressing the number of documents in each group and the total number of groups.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供基于内容的相似性来确定对文档进行分类的相似性的显式和有效的方法。
解决方案：使用文档之间的常用关键字数作为阈值来检查和分类直接或间接耦合文档的组标识。在逐步改变常用关键词阈值的同时分类文档，对整个文档组进行分类，同时抑制每个组中的文档数量和组的总数。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2006115363A Communication system for mobile object 有权
标题翻译：移动对象通信系统
公开(公告)号：JP2006115363A
公开(公告)日：2006-04-27
申请号：JP2004302369
申请日：2004-10-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KADOTA KAZUYA , HAYASHI MASATO , SATO HIROTATSU , FUKUZAWA SHOJI
IPC分类号： H04W16/26 , H04B7/26 , H04L12/28 , H04L12/701 , H04L12/763 , H04W40/24 , H04W40/34 , H04W74/08 , H04W80/04 , H04W84/12
CPC分类号： H04L45/586 , H04L29/12311 , H04L45/04 , H04L61/2084 , H04W8/26 , H04W40/02 , H04W48/08 , H04W80/04 , H04W84/18 , H04W88/04
摘要： PROBLEM TO BE SOLVED: To provide a method by which even a mobile terminal which can not directly communicate with a base station continues communication without changing an IP address and to make communication between mobile terminal by multi-hop communication possible when between the mobile terminals belongs to the same sub-network in communication for mobile objects. SOLUTION: When a care-of address belonging to the sub-network to connect is assigned, the care-of address is assigned even to the mobile terminal which can not directly communicate with the base station, between the mobile terminal constitutes an ad hoc network to realize communication via the base station by transferring router advertisement by a mobile terminal which receives the same router advertisement. In addition, communication between mobile terminals in the same sub-network is realized by routing home addresses of the mobile terminals by the ad hoc network. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种方法，即使不能直接与基站进行通信的移动终端也可以不改变IP地址来进行通信，并且可以通过多跳通信来实现移动终端之间的通信，移动终端属于与移动对象通信相同的子网。解决方案：当分配属于要连接的子网络的转交地址时，转交地址甚至被分配给不能直接与基站通信的移动终端，移动终端之间构成移动终端自组织网络，通过接收相同路由器广告的移动终端传送路由器通告，通过基站实现通信。此外，通过由自组织网络路由移动终端的归属地址来实现同一子网中移动终端之间的通信。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005236598A Ad hoc network system and ad hoc network terminal 有权
标题翻译： AD HOC网络系统和AD HOC网络终端
公开(公告)号：JP2005236598A
公开(公告)日：2005-09-02
申请号：JP2004042402
申请日：2004-02-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUKUZAWA SHOJI , NAGAFUNE TATSUAKI , KADOTA KAZUYA
IPC分类号： H04L12/28 , H04B7/26
摘要： PROBLEM TO BE SOLVED: To more increase the availability of an ad hoc terminal, by increasing the opportunity of communicating with terminals, regardless of the form of the communication or multi-hop communication which is specified a party terminal in the aggregate of ad hoc network terminals temporally, spatially kept away from each other, where many ad hoc network terminals are not always allowed simultaneous communications.
SOLUTION: Each ad hoc network terminal having data periodically transmits the data, in accordance with data transmission conditions. After the terminal which has having received the data becomes the terminal having new data, the terminal, by repeatedly the new data, becomes the terminal periodically transmitting the data similar to the original data transmission terminal, so that the each terminal is made to have the role of data transportation.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了更多地增加自组织终端的可用性，通过增加与终端进行通信的机会，不管通过何种形式的通信或多跳通信被指定为聚集终端临时网络终端在空间上保持远离彼此，其中许多自组织网络终端不总是允许同时通信。解决方案：具有数据的每个自组织网络终端根据数据传输条件周期性地发送数据。在已经接收到数据的终端成为具有新数据的终端之后，终端通过重复新数据成为周期性地发送类似于原始数据传输终端的数据的终端，使得每个终端具有数据运输的作用。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2008109179A Radio terminal device, program, and radio network 有权
标题翻译：无线电终端设备，程序和无线电网络
公开(公告)号：JP2008109179A
公开(公告)日：2008-05-08
申请号：JP2006287211
申请日：2006-10-23
申请人： Hitachi Ltd , Nippon Telegr & Teleph Corp , 日本電信電話株式会社 , 株式会社日立製作所
发明人： KADOTA KAZUYA , MATSUI SUSUMU , SAKATA TORU , NAGASE FUMIAKI , MIYAKOSHI YUUKI
IPC分类号： H04L12/28 , H04L12/721 , H04L12/917 , H04W40/02 , H04W72/02 , H04W84/18
摘要： PROBLEM TO BE SOLVED: To provide a radio terminal device, a program, and a radio network which dynamically construct a communication route with an adjacent node using an assigned radio channel for improving communication quality. SOLUTION: Before a routing processing unit processes a routing packet for constructing an ad hoc network, a radio channel assignment discrimination of a link between adjacent radio terminals which are with radio terminals which are originating sources of the routing packet is performed, if the assignment is discriminated to have finished, the routing processing unit processes the routing packet. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用分配的无线电信道动态地构建与相邻节点的通信路由的无线终端设备，程序和无线电网络，以改善通信质量。解决方案：在路由处理单元处理用于构建自组织网络的路由分组之前，执行与作为路由分组的源的无线终端的相邻无线终端之间的链路的无线电信道分配鉴别，如果该分配被区分为已经完成，路由处理单元处理路由分组。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2013074410A Ad-hoc network communication terminal, ad-hoc network communication terminal control method, and ad-hoc network communication system 有权
标题翻译： AD-HOC网络通信终端，AD-HOC网络通信终端控制方法和AD-HOC网络通信系统
公开(公告)号：JP2013074410A
公开(公告)日：2013-04-22
申请号：JP2011211146
申请日：2011-09-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SATO HIROTATSU , KADOTA KAZUYA , IGARASHI YUICHI , HARADA SATOSHI , NAKANO AKIRA , FUJIWARA TORU
IPC分类号： H04W74/04 , H04M1/00 , H04M11/00 , H04W28/04 , H04W84/18
CPC分类号： H04W72/1242 , H04W72/10 , H04W84/18
摘要： PROBLEM TO BE SOLVED: To make it possible to control communication accuracy corresponding to temporal change in the transmission priority of data in an ad-hoc network.SOLUTION: An ad-hoc network communication terminal 100 comprises: a network interface 113 for exchanging a packet with another communication terminal 101; and an arithmetic unit 111 for performing processing of calculating the transmission priority of a packet by applying a lapsed time from packet reception clock time to next packet transmission clock time at the communication terminal to a temporal change function of the transmission priority depending on a packet type indicated by the packet for each packet received from the other communication terminal 101 via the network interface 113, processing of determining earlier transmission order according to height of the calculated transmission priority per packet among packets scheduled to be transmitted, and processing of transmitting each packet scheduled to be transmitted on the basis of the determined transmission order at an arrival of the next packet transmission clock time.
摘要翻译：要解决的问题：使得可以控制与ad-hoc网络中的数据的传输优先级的时间变化相对应的通信精度。解决方案：自组织网络通信终端100包括：用于与另一通信终端101交换分组的网络接口113; 以及算术单元111，用于通过将从通信终端的分组接收时钟时间到下一个分组传输时钟时间的经过时间应用于根据分组类型的传输优先级的时间变化功能来计算分组的传输优先级的处理由通过网络接口113从其他通信终端101接收的每个分组的分组指示的处理，根据计算的要发送的分组中的每个分组的计算的传输优先级的高度来确定较早传输顺序的处理，以及传送每个分组的处理在下一个分组传输时钟时间到达时，根据所确定的传输顺序进行传输。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2012222437A Wireless communication network system, control server for wireless communication network system, and constitution method of wireless communication network system 有权
标题翻译：无线通信网络系统，无线通信网络系统控制服务器，无线通信网络系统构成方法
公开(公告)号：JP2012222437A
公开(公告)日：2012-11-12
申请号：JP2011083538
申请日：2011-04-05
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HARADA SATOSHI , KADOTA KAZUYA , IGARASHI YUICHI , KOIZUMI MINORU
IPC分类号： H04W40/22 , H04W4/04
摘要： PROBLEM TO BE SOLVED: To constitute a wireless communication network collecting data from a plurality of terminals.SOLUTION: When a first terminal 40d requests to participate in a first network group N1 managed by a first repeater 30a, a control server 10 determines whether the first repeater 30a can accommodate the first terminal 40d. When it is determined that the first repeater 30a can accommodate the first terminal 40, the control server 10 transmits connection destination information for permitting the first terminal 40d to participate in the first network group N1 to the first terminal 40d.
摘要翻译：要解决的问题：构成从多个终端收集数据的无线通信网络。解决方案：当第一终端40d请求参与由第一中继器30a管理的第一网络组N1时，控制服务器10确定第一中继器30a是否可以容纳第一终端40d。当确定第一中继器30a可以容纳第一终端40时，控制服务器10发送用于允许第一终端40d参与第一网络组N1到第一终端40d的连接目的地信息。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2011101225A Radio network system and terminal 有权
标题翻译：无线网络系统和终端
公开(公告)号：JP2011101225A
公开(公告)日：2011-05-19
申请号：JP2009254853
申请日：2009-11-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TERADA SHINSUKE , SAKATA TADAMICHI , HOTTA YUUKI , KADOTA KAZUYA , KOBAYASHI HIDETAKA
IPC分类号： H04W88/04 , H04W4/06 , H04W84/18
摘要： PROBLEM TO BE SOLVED: To secure the real time performance of transmission of streaming data of image data or the like, involved in connection establishment after communication link disconnection.
SOLUTION: This radio network system has a transmission source terminal for transmitting a series of data constituting streaming data, a destination terminal being a destination to which the series of data are transmitted, and a relay terminal for receiving the data from the transmission source terminal and relaying and transmitting the received data to the destination terminal, and transmits the streaming data with multi-hop. The respective terminals of the transmission source terminal and the relay terminal have: a path control part for searching and establishing a multi-hop communication path from the transmission source terminal to the destination terminal; a link control part for confirming a link with the next terminal to which data on the communication path is transmitted; and a data sequence control part for storing received data and controlling the most lately received data among the stored data so as to be transmitted to the next terminal in response to connection after link disconnection.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：确保在通信链路断开连接之后的连接建立中涉及图像数据等的流数据的传输的实时性能。解决方案：该无线电网络系统具有用于发送构成流数据的一系列数据的发送源终端，作为发送一系列数据的目的地的目的地终端和用于从发送接收数据的中继终端源终端，并将接收到的数据中继发送到目的终端，并以多跳发送流数据。发送源终端和中继终端的各终端具有：路径控制部，用于搜索并建立从发送源终端到目的终端的多跳通信路径; 用于确认与发送所述通信路径上的数据的下一个终端的链接的链路控制部分; 以及数据序列控制部分，用于存储所接收的数据并且控制存储的数据中的最近接收的数据，以便响应于链路断开之后的连接被发送到下一个终端。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2014003415A Communication network system, node device, and method for building communication network 有权
标题翻译：通信网络系统，节点设备和建立通信网络的方法
公开(公告)号：JP2014003415A
公开(公告)日：2014-01-09
申请号：JP2012136558
申请日：2012-06-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HARADA SATOSHI , KADOTA KAZUYA , IGARASHI YUICHI , NAKANO AKIRA , TAKATANI YUKIHIRO , MATSUI SUSUMU
IPC分类号： H04W76/02
摘要： PROBLEM TO BE SOLVED: To provide technology for efficiently reconfiguring a radio communication network in which nodes are hierarchically connected under a root node.SOLUTION: A communication network system having non-root nodes hierarchically connected under a root node includes a root node and non-root nodes. At second and subsequent startup time, the root node distributes control information for stipulating timing for each hierarchy with which timing a non-root node may start connecting to a hierarchically upper node above the non-root node. The non-root node connects to the hierarchically upper node with the timing based on control information received from the hierarchically upper node.
摘要翻译：要解决的问题：提供有效重新配置节点在根节点下分层连接的无线电通信网络的技术。解决方案：具有根节点下分层连接的根节点的通信网络系统包括根节点和非根节点，根节点。在第二次和随后的启动时，根节点分配用于规定每个层次的时序的控制信息，非根节点可以开始连接到非根节点之上的分级上级节点。非根节点通过基于从分级上级节点接收的控制信息的定时连接到分级上级节点。

9. 发明专利

JP2012085079A Radio network system 有权
标题翻译：无线网络系统
公开(公告)号：JP2012085079A
公开(公告)日：2012-04-26
申请号：JP2010229222
申请日：2010-10-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IGARASHI YUICHI , KADOTA KAZUYA , SATO HIROTATSU , HARADA SATOSHI
IPC分类号： H04W72/10 , H04W84/18
CPC分类号： H04W76/066 , H04W72/10 , H04W84/20
摘要： PROBLEM TO BE SOLVED: To realize a priority control method in a wireless multi-hop network having a narrow communication band.SOLUTION: A gateway for managing a radio network prepares communication frames, to be transmitted by each terminal, for all terminals, allocates communication frames to communication with low priority, and at the time when priority control is required, temporarily stops communication with low priority according to a packet type and communication timing, and switches to communication with higher priority. Thus, priority control preventing waste of a communication band is realized.

10. 发明专利

JP2012028832A Wireless network system 有权
标题翻译：无线网络系统
公开(公告)号：JP2012028832A
公开(公告)日：2012-02-09
申请号：JP2010162416
申请日：2010-07-20
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IGARASHI YUICHI , MATSUI SUSUMU , KOIZUMI MINORU , KADOTA KAZUYA , SATO HIROTATSU , MATSUURA YOSHIKI , HARADA SATOSHI
IPC分类号： H04W28/16 , H04W72/04 , H04W88/16
摘要： PROBLEM TO BE SOLVED: To realize a priority control method in a wireless multi-hop network with a narrow communication bandwidth.SOLUTION: A gateway wireless station managing a wireless network classifies time when all wireless stations communicate according to application requirement and priority, defines a communication frame configuration with variable communication time for each classification, uses, at normal time, a communication frame which has secured minimum time to allow a priority control occurrence from each wireless station to be notified, and when priority control is required, temporarily uses a communication frame configuration which has secured time optimal for transferring a packet which should be communicated with priority; thereby realizing priority control that prevents a communication bandwidth from being wasted.
摘要翻译：要解决的问题：实现具有窄通信带宽的无线多跳网络中的优先级控制方法。解决方案：管理无线网络的网关无线站根据应用需求和优先级对所有无线站进行通信的时间进行分类，定义每个分类具有可变通信时间的通信帧配置，在正常时间使用通信帧，已经确保了允许来自每个无线站的优先级控制发生的最小时间，并且当需要优先级控制时，暂时使用确保优先传输应优先通信的分组的时间的通信帧配置; 从而实现防止通信带宽浪费的优先级控制。版权所有（C）2012，JPO＆INPIT

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