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31. 发明专利

JP2009200602A Wireless communication apparatus 有权
标题翻译：无线通信设备
公开(公告)号：JP2009200602A
公开(公告)日：2009-09-03
申请号：JP2008037561
申请日：2008-02-19
申请人： Hitachi Communication Technologies Ltd , 株式会社日立コミュニケーションテクノロジー
发明人： KANZAKI HAJIME , TAMAKI SATOSHI , FURUEDA KOICHIRO
IPC分类号： H04J11/00 , H04B7/04 , H04J1/00 , H04J99/00
CPC分类号： H04B7/0619 , H04B7/0848 , H04B7/0851 , H04B7/0854 , H04L25/0204 , H04L25/0242 , H04L25/03159 , H04L2025/03414 , H04L2025/03426
摘要： PROBLEM TO BE SOLVED: To allows a wireless communication apparatus which transmits and receives orthogonal modulation signals, to correct coefficient values to be applied to the received signals to proper values in a short period of time when reception timing of wireless frames shifts.
SOLUTION: The wireless communication apparatus comprises: a memory for storing a group of coefficient values to be applied to processing of orthogonal modulation signals received by a plurality of antenna elements; a coefficient generation unit for detecting a phase rotation value of specific received signals on the basis of a desired signal and a group of coefficient values read out from the memory, compensating the coefficient values according to the detected phase rotation value, and storing the compensated coefficient values in the memory; and a signal processing unit for processing the received signals output from a signal conversion unit by applying the compensated coefficient values.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了允许发送和接收正交调制信号的无线通信装置，在无线帧的接收定时发生移位时，在短时间内将适用于接收信号的系数值校正为适当的值。解决方案：无线通信装置包括：存储器，用于存储要应用于由多个天线元件接收的正交调制信号的处理的一组系数值; 系数产生单元，用于根据从存储器读出的期望信号和一组系数值来检测特定接收信号的相位旋转值，根据检测到的相位旋转值补偿系数值，并存储补偿系数记忆中的值以及信号处理单元，用于通过应用补偿的系数值来处理从信号转换单元输出的接收信号。版权所有（C）2009，JPO＆INPIT

32. 发明专利

JP4326124B2 Multiplexing equipment 有权
公开(公告)号：JP4326124B2
公开(公告)日：2009-09-02
申请号：JP2000191246
申请日：2000-06-26
申请人：株式会社日立コミュニケーションテクノロジー
发明人：栄祐厚海 , 博昭橋本 , 公敏竹内 , 達也鈴木
IPC分类号： H04L12/56 , H04L12/28
摘要： PROBLEM TO BE SOLVED: To provide a multiplexing apparatus that can reduce a delay time with respect to data transmission in an ATM network. SOLUTION: The multiplexing apparatus 103 is provided with a route selection section 404 that receives data sent from a data communication unit 101 and to be sent in the ATM network, a cell assembling section 407 that assembles cells from the received data, and a clock generating section 409 that generates an internal timing signal 412 corresponding to a multiple of n (n is a natural number) of a communication speed used for the transmission of the received information and an external timing signal 413 corresponding to the communication speed, and the cell assembly section 407 samples data to be transmitted on the basis of the internal timing signal 412 and uses the sampled data to assemble cells.

33. 发明专利

JP2009189055A Radio base station 有权
标题翻译：无线电基站
公开(公告)号：JP2009189055A
公开(公告)日：2009-08-20
申请号：JP2009120382
申请日：2009-05-18
申请人： Hitachi Communication Technologies Ltd , Hitachi Information & Communication Engineering Ltd , 日立情報通信エンジニアリング株式会社 , 株式会社日立コミュニケーションテクノロジー
发明人： MIYAWAKI KATSUSHI , TAKAHASHI YUICHI
IPC分类号： H04W56/00 , H04J3/00
摘要： PROBLEM TO BE SOLVED: To solve the problem that different kinds of radio base stations can not establish synchronism in a radio section and then effective use of radio waves can not be secured. SOLUTION: Disclosed is a TDMA type mobile communication system 100 comprising a plurality of radio base stations (general radio base station 1, IP connection type radio base station 10, and digital cordless master device 2) differing in system kind, slave devices 5A and 5B radio-connected to the plurality of radio base stations, and a private branch exchange 4 connected to the radio base station by a cable, wherein each of the radio base station receives a frame signal including a control CH signal from a reference base station (reference station) once a synchronous mode is determined, times transmission of a frame signal of its station to a sending-out position of a control CH signal in the frame signal to establish frame synchronism in a radio section between its station and reference station. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了解决不同种类的无线电基站在无线电部分中不能建立同步的问题，然后无法确保无线电波的有效使用。解决方案：公开了一种TDMA系移动通信系统100，其包括系统种类不同的多个无线基站（通用无线基站1，IP连接型无线基站10和数字无绳主设备2），从设备 5A和5B，其连接到多个无线电基站，以及通过电缆连接到无线电基站的专用小交换机4，其中每个无线电基站从参考基站接收包括控制CH信号的帧信号站（参考站）一旦确定了同步模式，则将其站的帧信号的时间传输到帧信号中的控制CH信号的发送位置，以在其站和参考站之间的无线电段中建立帧同步。版权所有（C）2009，JPO＆INPIT

34. 发明专利

JP2009189054A Radio base station 有权
标题翻译：无线电基站
公开(公告)号：JP2009189054A
公开(公告)日：2009-08-20
申请号：JP2009120261
申请日：2009-05-18
申请人： Hitachi Communication Technologies Ltd , Hitachi Information & Communication Engineering Ltd , 日立情報通信エンジニアリング株式会社 , 株式会社日立コミュニケーションテクノロジー
发明人： MIYAWAKI KATSUSHI , TAKAHASHI YUICHI
IPC分类号： H04W56/00 , H04J3/00
摘要： PROBLEM TO BE SOLVED: To solve the problem that different kinds of radio base stations can not establish synchronism in a radio section and then effective use of radio waves can not be secured. SOLUTION: Disclosed is a TDMA type mobile communication system 100 comprising a plurality of radio base stations (general radio base station 1, IP connection type radio base station 10, and digital cordless master device 2) differing in system kind, slave devices 5A and 5B radio-connected to the plurality of radio base stations, and a private branch exchange 4 connected to the radio base station by a cable, wherein each of the radio base stations receives a frame signal including a control CH signal from a reference base station (reference station) once a synchronous mode is determined, times transmission of a frame signal of its station to a sending-out position of a control CH signal in the frame signal to establish frame synchronism in a radio section between its station and reference station. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了解决不同种类的无线电基站在无线电部分中不能建立同步的问题，然后无法确保无线电波的有效使用。解决方案：公开了一种TDMA系移动通信系统100，其包括系统种类不同的多个无线基站（通用无线基站1，IP连接型无线基站10，数字无绳主设备2），从设备 5A和5B，其连接到多个无线电基站，以及通过电缆连接到无线电基站的专用小交换机4，其中每个无线电基站从参考基站接收包括控制CH信号的帧信号站（参考站）一旦确定了同步模式，则将其站的帧信号的时间传输到帧信号中的控制CH信号的发送位置，以在其站和参考站之间的无线电段中建立帧同步。版权所有（C）2009，JPO＆INPIT

35. 发明专利

JP2009189026A Passive optical network system and station-side optical line terminal device 有权
标题翻译：被动光网络系统和台式光端机终端设备
公开(公告)号：JP2009189026A
公开(公告)日：2009-08-20
申请号：JP2009053805
申请日：2009-03-06
申请人： Hitachi Communication Technologies Ltd , 株式会社日立コミュニケーションテクノロジー
发明人： IKEDA HIROKI , MIZUTANI MASAHIKO , SUGAWARA TOSHIKI , GOHARA SHINOBU
IPC分类号： H04L12/44
摘要： PROBLEM TO BE SOLVED: To provide a passive optical network, (PON), system in which a plurality of types of ONU having different signal transmission speeds can be connected to a single OLT.
SOLUTION: A station-side optical line terminator (OLT), connected to a plurality of types of ONU of different signal transmission speeds through an optical distribution network, includes: an optical transmission and reception unit 101 coupled with the optical distribution network; a transmission and reception line interface 102 connected to a wide-area network; a down frame processor 121 for converting, at the transmission and reception line interface, a packet received from the wide-area network into a down frame containing identification information of a destination ONU in a header; and a down transmission controller 124 for modulating the down frame at a speed corresponding to the signal transmission speed of the destination ONU and providing the modulated frame as output to an electrical/optical converter connected to the optical transmission and reception unit.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种无源光网络（PON），其中具有不同信号传输速度的多种类型的ONU可以连接到单个OLT的系统。解决方案：通过光分配网络连接到具有不同信号传输速度的多种类型的ONU的站侧光线路终端器（OLT）包括：光发送和接收单元101，与光分配网络 ; 连接到广域网的发送和接收线路接口102; 下行帧处理器121，用于在发送和接收线路接口处将从广域网接收到的分组转换成包含报头中的目的地ONU的标识信息的下行帧; 以及下行传输控制器124，用于以与目的地ONU的信号传输速度相对应的速度调制下行帧，并将调制帧作为输出提供给连接到光发送和接收单元的电/光转换器。版权所有（C）2009，JPO＆INPIT

36. 发明专利

JP4317610B2 Heat pipe mounting structure 有权
公开(公告)号：JP4317610B2
公开(公告)日：2009-08-19
申请号：JP11598799
申请日：1999-04-23
申请人：株式会社日立コミュニケーションテクノロジー
发明人：典生中里 , 博司桑木 , 真也浜岸 , 孝一福宮 , 靖治辛島
IPC分类号： F28D15/02 , H01L23/427 , H01L21/48
CPC分类号： F28D15/0233 , F28D15/0275 , H01L21/4882 , H01L23/427 , H01L2924/0002 , H01L2924/00

37. 发明专利

JP2009182971A Network system 有权
标题翻译：网络系统
公开(公告)号：JP2009182971A
公开(公告)日：2009-08-13
申请号：JP2009050596
申请日：2009-03-04
申请人： Hitachi Communication Technologies Ltd , 株式会社日立コミュニケーションテクノロジー
发明人： SHIBATA TSUYOSHI , HANAOKA MASAYUKI
IPC分类号： H04W80/04 , H04L12/70
摘要： PROBLEM TO BE SOLVED: To secure reliability of communication in a radio communication of a multicast system when an IP multicast is used in an IP broadcasting service. SOLUTION: The network system includes a relay device for transferring a multicast packet and a transfer request packet, and a network device for receiving the transfer request packet and for transferring the distributed multicast packet, wherein the relay device transmits a conversion request accompanied with the transfer request packet when the multicast packet is transmitted to a reception device which needs a unicast communication, and the network device receives the multicast packet and transfers the multicast packet after setting a designated MAC address of the multicast packet to a unicast MAC address of the reception device in accordance with the conversion request from the relay device. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了在IP广播服务中使用IP多播时，确保组播系统的无线电通信中的通信的可靠性。解决方案：网络系统包括用于传送组播分组的中继设备和传输请求分组，以及用于接收传送请求分组并传送分布式组播分组的网络设备，其中中继设备发送伴随的转换请求当将组播分组发送到需要单播通信的接收装置时，传送请求分组，并且网络装置在将多播分组的指定MAC地址设置为单播MAC地址之后，接收到多播分组并传送多播分组接收设备根据来自中继设备的转换请求。版权所有（C）2009，JPO＆INPIT

38. 发明专利

JP2009182782A Radio base station and scheduling method 有权
标题翻译：无线基站和调度方法
公开(公告)号：JP2009182782A
公开(公告)日：2009-08-13
申请号：JP2008020626
申请日：2008-01-31
申请人： Hitachi Communication Technologies Ltd , 株式会社日立コミュニケーションテクノロジー
发明人： ABE ATSUSHI , TAIRA MASANORI , MAZAWA SHIRO , TAKAHASHI YOSUKE
IPC分类号： H04W72/04 , H04W72/08 , H04W72/12
CPC分类号： H04W72/1231 , H04W28/22 , H04W72/0446
摘要： PROBLEM TO BE SOLVED: To accommodate a large number of users required in a digital radio communication system, to prevent communication quality from deteriorating, and to prevent occurrence of a delay by adding a process for restricting packet assignment for a call having low communication quality. SOLUTION: In a scheduling method, when an average DRC value is equal to or smaller than a threshold, assigned slots are thinned out to improve communication quality for radio terminals close to cell boundaries and to mainly increase the number of radio terminals accommodated. As a method for thinning out assigned slots, packets received from the upper level unit of a radio base station are, for example, discarded before transmission as long as the lowest limit sound quality is maintained. With this operation, the lowest limit sound quality is ensured. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了适应数字无线电通信系统中所需的大量用户，以防止通信质量恶化，并且通过添加用于限制具有低电平的呼叫的分组分配的处理来防止发生延迟通信质量。解决方案：在调度方法中，当平均DRC值等于或小于阈值时，分配的时隙被稀疏以提高接近小区边界的无线电终端的通信质量，并且主要增加容纳的无线电终端的数量。作为用于稀疏分配时隙的方法，只要保持最低限度音质，则例如在无线基站的上级单元接收到的分组被传送之前被丢弃。通过该操作，可以确保最低音质。版权所有（C）2009，JPO＆INPIT

39. 发明专利

JP4313391B2 Optical line terminal and optical subscriber equipment 有权
公开(公告)号：JP4313391B2
公开(公告)日：2009-08-12
申请号：JP2006336147
申请日：2006-12-13
申请人：株式会社日立コミュニケーションテクノロジー
发明人：太郎土濃塚 , 昌輝大平
IPC分类号： H04L1/00 , G06F11/10 , H03M13/15 , H04L12/44
CPC分类号： H03M13/155 , H03M13/1515 , H03M13/152 , H03M13/1535 , H03M13/1545 , H03M13/6561 , H04J3/14 , H04J3/1694 , H04L1/0045 , H04L1/0057

40. 发明专利

JP2009177597A Communication controller 有权
标题翻译：通讯控制器
公开(公告)号：JP2009177597A
公开(公告)日：2009-08-06
申请号：JP2008015089
申请日：2008-01-25
申请人： Hitachi Communication Technologies Ltd , 株式会社日立コミュニケーションテクノロジー
发明人： HOSHI TOMOHISA , TAKEMICHI YUSUKE , KATO MITSUGI
IPC分类号： H04W24/04 , H04L12/713 , H04M3/00 , H04W88/12
摘要： PROBLEM TO BE SOLVED: To solve the problem that a load is imposed on the processing of an operational card by transferring whole extra call control data to a reserve system card when exchanging a packet. SOLUTION: A transfer kind is added to a call control table and the minimum data is transferred to the reserve system card. By using the transfer kind, duplicate information is prevented from being transferred to the reserve system when a call state is changed after the reception of the packet. COPYRIGHT: (C)2009,JPO&INPIT

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