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21. 发明申请

US20050185577A1 IP packet communication apparatus 失效
标题翻译： IP分组通信装置
公开(公告)号：US20050185577A1
公开(公告)日：2005-08-25
申请号：US11115125
申请日：2005-04-27
申请人： Kenichi Sakamoto , Noboru Endo , Toshiki Sugawara , Koji Wakayama , Kazuyoshi Hoshino
发明人： Kenichi Sakamoto , Noboru Endo , Toshiki Sugawara , Koji Wakayama , Kazuyoshi Hoshino
IPC分类号： H04L12/56 , H04J14/02 , H04L12/26
CPC分类号： H04J14/0295 , H04J14/0227 , H04J14/0241 , H04J14/0278 , H04J14/0283 , H04J14/029 , H04J14/0294 , H04J14/0297 , H04L43/00 , H04L43/0829 , H04L43/0847 , H04L43/10 , H04L43/16
摘要： In an IP packet communication apparatus, an operation and maintenance function capable of monitoring a transmission path is provided to a layer used to process a packet, which corresponds to an upper layer of an optical network. As one method for applying the operation and maintenance function to the packet layer, in the case of IP over PPP over WDM, an operation/maintenance frame is defined to a PPP frame so as to realize the operation/maintenance function of a PPP connection. In the case that a plurality of connections are multiplexed on the same transmission path, a maintenance frame is conducted in order to operate/manage these connections by being grouped, so that a fault occurring in the optical network is monitored. As another method for applying the operation and maintenance function to the packet layer, an operation/maintenance frame is defined to an IP packet so as to realize an operation and maintenance function of an IP flow. Also, since a plurality of flows are multiplexed on the same transmission path, a management packet is defined to operate/manage these flows to be grouped, so that a fault occurring the in the optical network is monitored.
摘要翻译：在IP分组通信装置中，向用于处理对应于光网络的上层的分组的层提供能够监视传输路径的操作和维护功能。作为对分组层应用操作和维护功能的一种方法，在通过WDM通过PPP的IP的情况下，将操作/维护帧定义为PPP帧，以实现PPP连接的操作/维护功能。在多个连接被复用在同一传输路径上的情况下，进行维护帧以通过分组来操作/管理这些连接，从而监视在光网络中发生的故障。作为对分组层应用操作和维护功能的另一种方法，将IP分组定义为操作/维护帧，以实现IP流的操作和维护功能。此外，由于多个流在同一传输路径上多路复用，所以管理分组被定义为对这些流进行分组操作/管理，从而监视在光网络中发生的故障。

22. 发明申请

US20050185576A1 Communication apparatus and communication system 失效
标题翻译：通信设备和通信系统
公开(公告)号：US20050185576A1
公开(公告)日：2005-08-25
申请号：US11114178
申请日：2005-04-26
申请人： Toshiki Sugawara , Noboru Endo , Kenichi Sakamoto
发明人： Toshiki Sugawara , Noboru Endo , Kenichi Sakamoto
IPC分类号： H04J3/16 , H04L1/00
CPC分类号： H04J3/1611 , H04J14/0289 , H04J14/0293
摘要： Interlayer-coordinated communication-line switching in a network including two layers, each having a switching function. In the present invention, a communication apparatus which (1) is connected with a network including (i) lower layer apparatus which are connected with communication lines of a lower layer and communication lines of an upper layer and conducts line switching in the lower layer and (ii) upper layer apparatuses which are connected with the communication lines of the upper layer and have means for line switching in the upper layer and (2) detects line failure and coordinates line switching using failure information on the lower and upper layer communication lines.
摘要翻译：在包括两层的网络中的层间协调通信线路交换，每个层具有切换功能。在本发明中，（1）的通信装置与网络连接，包括：（i）下层装置，其与下层的通信线路和上层的通信线路连接，并在下层进行线路交换;以及（ii）与上层的通信线路连接并具有上层线路交换装置的上层装置，（2）利用上下层通信线路的故障信息检测线路故障和坐标线路切换。

23. 发明授权

US06836479B1 Variable length packet communication device 失效
标题翻译：可变长度分组通信设备
公开(公告)号：US06836479B1
公开(公告)日：2004-12-28
申请号：US09362134
申请日：1999-07-28
申请人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
发明人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
IPC分类号： H04L1228
CPC分类号： H04L49/30 , H04L12/5601 , H04L45/302 , H04L45/60 , H04L49/101 , H04L49/20 , H04L49/254 , H04L49/3009 , H04L49/3018 , H04L49/3027 , H04L49/508 , H04L49/608 , H04L2012/5651 , H04L2012/5652 , H04L2012/5681
摘要： An input interface segments a variable length packet into plurality of fixed length cells and generates an internal switching information based on the header information of the variable length packet. The input interface transmits the information to a switch and, after that, transmits the cells as the following cells of the information to the switch. The switch performs switching processing to the succeeding cells based on the information. Therefore, the information is not added to the cells. When an input interface starts to transmit cells generated from a packet to its destination output interface through the switch, the switch is reserved until all the cells arrive at the output interfaces.
摘要翻译：输入接口将可变长度分组划分成多个固定长度单元，并且基于可变长度分组的报头信息生成内部切换信息。输入接口将信息发送给交换机，然后将信元作为信息的下列单元发送给交换机。交换机根据该信息对后续的小区进行切换处理。因此，信息不会添加到单元格中。当输入接口开始通过交换机将从数据包生成的单元传输到其目标输出接口时，保留交换机直到所有单元到达输出接口。

24. 发明授权

US06754495B2 Handover method in mobile communication system 有权
标题翻译：移动通信系统中的切换方法
公开(公告)号：US06754495B2
公开(公告)日：2004-06-22
申请号：US09855102
申请日：2001-05-14
申请人： Tsutomu Kusaki , Kenichi Sakamoto , Masaru Murakami , Takashi Yokoyama
发明人： Tsutomu Kusaki , Kenichi Sakamoto , Masaru Murakami , Takashi Yokoyama
IPC分类号： H04Q720
CPC分类号： H04W36/18 , H04W36/02 , H04W36/26 , H04W36/30
摘要： In a mobile communication system having an ATM-processed transfer path, a non-instantaneous interrupt handover can be realized. In a mobile communication network including an ATM-processed transfer path, when a mobile station is moved between cells during communication, frames are received to be identified by a mobile switching center. The frames contain the same data received from both base stations covering the cell range at asynchronous timing different from each other. A selection is made of header information with the lowest error rate from the header information of these frames. The frames are connected at instructed timing. Also, the frames to be transmitted to a plurality of base stations are duplicated, and then transmission timing is specified from these header information. These duplicated frames are transmitted at the specified transmission timing, so that the non-instantaneous interrupt handover is carried out.
摘要翻译：在具有ATM处理传输路径的移动通信系统中，可以实现非瞬时中断切换。在包括ATM处理的传输路径的移动通信网络中，当移动站在通信期间在小区之间移动时，帧被接收以被移动交换中心识别。这些帧包含从两个基站接收到的相同数据，这两个基站在异步定时不同的情况下覆盖小区范围。从这些帧的标题信息中选择具有最低错误率的报头信息。帧在指定的时间连接。此外，要发送到多个基站的帧被复制，然后从这些头信息指定发送定时。这些复制帧在指定的发送定时被发送，从而执行非瞬时中断切换。

25. 发明授权

US06259920B1 Handover method in mobile communication system 有权
标题翻译：移动通信系统中的切换方法
公开(公告)号：US06259920B1
公开(公告)日：2001-07-10
申请号：US09603008
申请日：2000-06-26
申请人： Tsutomu Kusaki , Kenichi Sakamoto , Masaru Murakami , Takashi Yokoyama
发明人： Tsutomu Kusaki , Kenichi Sakamoto , Masaru Murakami , Takashi Yokoyama
IPC分类号： H04Q720
CPC分类号： H04W36/18 , H04W36/02 , H04W36/26 , H04W36/30
摘要： In a mobile communication system having an ATM-processed transfer path, a non-instantaneous interrupt handover can be realized. In a mobile communication network including an ATM-processed transfer path, when a mobile station is moved between cells during communication, frames are received to be identified by a mobile switching center. The frames contain the same data received from both base stations covering the cell range at asynchronous timing different from each other. A selection is made of header information with the lowest error rate from the header information of these frames. The frames are connected at instructed timing. Also, the frames to be transmitted to a plurality of base stations are duplicated, and then transmission timing is specified from these header information. These duplicated frames are transmitted at the specified transmission timing, so that the non-instantaneous interrupt handover is carried out.
摘要翻译：在具有ATM处理传输路径的移动通信系统中，可以实现非瞬时中断切换。在包括ATM处理的传输路径的移动通信网络中，当移动站在通信期间在小区之间移动时，帧被接收以被移动交换中心识别。这些帧包含从两个基站接收到的相同数据，这两个基站在异步定时不同的情况下覆盖小区范围。从这些帧的标题信息中选择具有最低错误率的报头信息。帧在指定的时间连接。此外，要发送到多个基站的帧被复制，然后从这些头信息指定发送定时。这些复制帧在指定的发送定时被发送，从而执行非瞬时中断切换。

26. 发明授权

US06185212B2 ATM cell processing apparatus 失效
标题翻译： ATM信元处理装置
公开(公告)号：US06185212B2
公开(公告)日：2001-02-06
申请号：US09056770
申请日：1998-04-08
申请人： Kenichi Sakamoto , Akio Makimoto , Akihiko Takase , Norihiko Moriwaki , Atsushi Kiuchi
发明人： Kenichi Sakamoto , Akio Makimoto , Akihiko Takase , Norihiko Moriwaki , Atsushi Kiuchi
IPC分类号： H04L1228
CPC分类号： H04L49/254 , H04L49/30 , H04L2012/5681
摘要： An ATM cell processing apparatus including a DRAM for a frame producing buffer of a frame producing unit. In order to absorb the anisotropy of the access rate of the DRAM access, the random access mode of the DRAM access is always used. To compensate a drop in access rate in this case, the DRAM is arranged is an array form and each cell is divided. Resultant partial cell data are written into and read from respective DRAM banks in order. As a result, a fast cell buffer having a large capacity can be formed. The present cell buffer can be applied to a FIFO and the like as well.
摘要翻译：一种ATM信元处理装置，包括用于帧产生单元的帧产生缓冲器的DRAM。为了吸收DRAM访问的访问速率的各向异性，始终使用DRAM访问的随机存取模式。为了补偿这种情况下的访问速率的下降，DRAM被排列成阵列形式，并且每个单元被分割。所产生的部分单元数据按顺序写入和从相应的DRAM存储体读取。结果，可以形成具有大容量的快速电池缓冲器。本单元缓冲器也可以应用于FIFO等。

27. 发明授权

US06178165B1 Communication system 有权
标题翻译：通讯系统
公开(公告)号：US06178165B1
公开(公告)日：2001-01-23
申请号：US09411655
申请日：1999-10-04
申请人： Kenichi Sakamoto , Tsutomu Kusaki , Masaru Murakami , Takashi Zokoyama
发明人： Kenichi Sakamoto , Tsutomu Kusaki , Masaru Murakami , Takashi Zokoyama
IPC分类号： H04Q700
CPC分类号： H04B7/022 , H04W36/18
摘要： A communication system includes a control unit, a switch and a diversity hand-over processing unit connected to the control unit and the switch for receiving, both a first communication signal received from a radio base station which outputs the hand-over instruction, and a second communication signal which receives it from another radio base station to which the communication signal will be hand-over to output one of the first and second communication signals to the associated interface circuit, and for transmitting the communication signal received through the radio base station from the mobile station on the reception side for communication to both the interface circuit associated with the radio base station as a source of hand-over and the interface circuit associated with the radio base station as a destination of hand-over. Thus, during the hand-over, the diversity hand-over processing unit transmits the communication signal from the mobile station on the reception side for communication to both the radio base station as a source of hand-over and the radio base station as a destination of hand-over so that the communication is established between the mobile station on the transmission side for communication and the mobile station as a destination of hand-over and on the reception side for communication.
摘要翻译：一种通信系统，包括控制单元，开关和分配移交处理单元，连接到控制单元和开关，用于接收从输出切换指令的无线电基站接收的第一通信信号和第二通信信号，其从另一个无线电基站接收通信信号将被切换到的第二和第二通信信号，以将第一和第二通信信号中的一个输出到相关联的接口电路，并且将通过无线电基站接收的通信信号从接收侧的移动台用于与无线基站相关联的接口电路作为切换源，以及与无线基站相关联的接口电路作为切换目的地进行通信。因此，在切换过程中，分集处理单元将来自接收侧的移动台的通信信号作为切换的来源发送到作为切换的来源的无线基站和作为目的地的无线基站使得在用于通信的发送侧的移动台和作为切换的目的地的移动台之间以及在用于通信的接收侧上建立通信。

28. 发明授权

US08522288B2 IP broadcasting system and a multicast group management apparatus for the same 失效
标题翻译： IP广播系统及其组播组管理装置
公开(公告)号：US08522288B2
公开(公告)日：2013-08-27
申请号：US11778969
申请日：2007-07-17
申请人： Hiroki Ikeda , Kenichi Sakamoto , Taishi Shinagawa
发明人： Hiroki Ikeda , Kenichi Sakamoto , Taishi Shinagawa
IPC分类号： H04N7/173
CPC分类号： H04L12/1877 , H04L12/185 , H04L65/4076 , H04N21/4384 , H04N21/6125 , H04N21/6405 , H04N21/643 , H04N21/64322
摘要： The present invention provides an IP broadcasting system that can receive IP broadcasting videos over an IP multicast network. In the IP broadcasting system, a multicast group management apparatus for IP broadcasting that holds multicast group identifiers is connected via an IP multicast network over which IP broadcasting services are provided. When a user issues a request to switch an IP broadcasting channel from an IP broadcasting terminal, a query message including the requested IP broadcasting channel identifier is transmitted to a management apparatus. The IP broadcasting terminal receives a response message indicating the correspondence between the IP broadcasting channel identifier and a multicast group identifier, and transmits a video reception request message to a multicast group by using the received multicast group identifier.
摘要翻译：本发明提供一种能够通过IP多播网络接收IP广播视频的IP广播系统。在IP广播系统中，通过IP组播网络连接保持组播组标识符的IP广播组播组管理装置，通过该组播网络提供IP广播业务。当用户发出从IP广播终端切换IP广播信道的请求时，向管理装置发送包括所请求的IP广播信道标识符的查询消息。 IP广播终端接收表示IP广播信道标识符与多播组标识符之间的对应关系的响应消息，并通过使用接收到的多播组标识符将视频接收请求消息发送到多播组。

29. 发明申请

US20110268129A1 VPN COMPOSING METHOD, INTERWORK ROUTER, PACKET COMMUNICATION METHOD, DATA COMMUNICATION APPARATUS, AND PACKET RELAYING APPARATUS 失效
标题翻译： VPN组合方法，接口路由器，分组通信方法，数据通信设备和分组中继设备
公开(公告)号：US20110268129A1
公开(公告)日：2011-11-03
申请号：US13178906
申请日：2011-07-08
申请人： Kenichi Sakamoto , Kazuyoshi Hoshino , Koji Wakayama , Shiro Tanabe , Noboru Endo
发明人： Kenichi Sakamoto , Kazuyoshi Hoshino , Koji Wakayama , Shiro Tanabe , Noboru Endo
IPC分类号： H04L12/56
CPC分类号： H04L45/50 , H04L12/2856 , H04L12/2874 , H04L12/4633 , H04L12/4641
摘要： A data communication apparatus to be coupled to a first network and a Multiprotocol Label Switching (MPLS) network, includes a receiving unit which receives a data including header information indicating a destination and first header information used to identify a first Virtual Private Network (VPN) in the first network. The apparatus also includes a transmitter which transmits data having added thereto a MPLS header information used to identify one of the plurality of second VPNs in the MPLS network, the MPLS header information corresponding to both the header information indicating the destination and the first header information used to identify the first VPN in the first network included in the received data.
摘要翻译：一种要耦合到第一网络和多协议标签交换（MPLS）网络的数据通信设备，包括：接收单元，其接收包括用于标识第一虚拟专用网（VPN）的首标信息和用于标识第一虚拟专用网（VPN）在第一个网络。所述装置还包括发送器，其向所述MPLS网络中发送添加了用于标识所述多个第二VPN中的一个的MPLS标题信息的数据，所述MPLS标题信息对应于表示所述目的地的报头信息和所述第一报头信息识别包含在接收数据中的第一个网络中的第一个VPN。

30. 发明申请

US20090323694A1 LABEL SWITCHING TYPE OF PACKET FORWARDING APPARATUS 有权
标题翻译：标签切换类型的分组装置
公开(公告)号：US20090323694A1
公开(公告)日：2009-12-31
申请号：US12550945
申请日：2009-08-31
申请人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama
发明人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama
IPC分类号： H04L12/56
CPC分类号： H04L49/3009 , H04L49/602
摘要： A label switching type packet forwarding apparatus having a routing information table in which a forwarding type of a reception packet, output port identification information, and output routing information of a specific layer in the OSI reference model determined by the forwarding type are defined in correspondence with routing information which is found upon reception of a packet, for converting a header of a reception packet in accordance with the packet forwarding type and the output routing information obtained by a table search.
摘要翻译：一种标签交换型分组转发装置，具有路由信息表，其中，由转发类型确定的OSI参考模型中的接收分组的转发类型，输出端口识别信息和特定层的输出路由信息被定义为与在接收到分组时发现的路由信息，用于根据分组转发类型转换接收分组的报头，以及通过表搜索获得的输出路由信息。

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