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    Buffer management method and packet communication apparatus
    1.
    发明授权
    Buffer management method and packet communication apparatus 有权
    缓冲管理方法和分组通信装置

    公开(公告)号：US08243745B2

    公开(公告)日：2012-08-14

    申请号：US12699221

    申请日：2010-02-03

    申请人： Hideki Endo ,  Akihiko Tanaka ,  Takayuki Kanno ,  Masayuki Takase ,  Taisuke Ueta

    发明人： Hideki Endo ,  Akihiko Tanaka ,  Takayuki Kanno ,  Masayuki Takase ,  Taisuke Ueta

    IPC分类号： H04L12/56 ,  G06F3/00

    CPC分类号： H04L49/9015 ,  H04L49/90

    摘要： A packet communication apparatus includes a frame buffer of a linked list method and holds chain information and buffer size information, for structuring a linked list buffer for each user flow, in two areas consisting of an operation area and an update area. While usually in service, the buffer is structured by using the chain information in the operation area and the buffer size information in the same area such that the frame is read/written in the frame buffer. When the chain information in the update area and the buffer size information in the same area have been changed, a queue size is changed by reflecting the updated chain information and the updater buffer size information into the operation area, when both the read pointer and the write pointer respectively have gone around the buffer, or when there is no frame stored in the buffer.

    摘要翻译： 分组通信装置包括链表列表方法的帧缓冲器，并且在由操作区域和更新区域组成的两个区域中保存用于为每个用户流构造链接列表缓冲器的链信息和缓冲器大小信息。 通常在使用中，通过使用操作区域中的链接信息和相同区域中的缓冲器大小信息来构造缓冲器，使得帧被读取/写入帧缓冲器。 当更新区域中的链路信息和相同区域中的缓冲器大小信息已经改变时，当读取指针和读取指针都被读取时，通过将更新的链接信息和更新的缓冲器大小信息反映到操作区域来改变队列大小 写指针分别绕过缓冲区，或者当没有帧存储在缓冲区中时。

    Packet transfer apparatus and packet transfer method
    2.
    发明申请
    Packet transfer apparatus and packet transfer method 有权
    分组传送装置和分组传送方法

    公开(公告)号：US20090016366A1

    公开(公告)日：2009-01-15

    申请号：US12073766

    申请日：2008-03-10

    申请人： Hideki Endo ,  Masayuki Takase ,  Shikou Matsushima ,  Akihiko Tanaka ,  Takayuki Kanno ,  Yoshihiro Ashi

    发明人： Hideki Endo ,  Masayuki Takase ,  Shikou Matsushima ,  Akihiko Tanaka ,  Takayuki Kanno ,  Yoshihiro Ashi

    IPC分类号： H04L12/56

    CPC分类号： H04L45/00 ,  H04L45/22 ,  H04L45/28

    摘要： Disclosed herewith is a packet transfer apparatus that carries out 1+1 protection switching for traffics to be received variably in both length and cycle. The apparatus enables flows to be multiplexed and the link usage efficiency to be improved without generating any buffer overflow errors. The data transfer apparatus, upon receiving the third sequentially numbered data from the first communication route before receiving the preceding second sequentially numbered data, stores the received third data in a buffer. And upon receiving the second sequentially numbered data from the second communication route, the apparatus sends the second and third data sequentially. Then, upon receiving the third sequentially numbered data from the second communication route before receiving the second sequentially numbered data, the apparatus sends the third data when a predetermined waiting time expires.

    摘要翻译： 这里公开了一种分组传送装置，其执行1 + 1保护切换以便在长度和周期中可变地接收业务。 该装置能够使流复用，并且链路使用效率得到改善，而不产生任何缓冲器溢出错误。 数据传送装置在接收到先前的第二顺序编号数据之前从第一通信路由接收到第三顺序编号的数据后，将接收的第三数据存储在缓冲器中。 并且在从第二通信路由接收到第二顺序编号的数据时，装置依次发送第二和第三数据。 然后，在接收到第二顺序编号数据之前从第二通信路由接收到第三顺序编号的数据后，当预定的等待时间到期时，装置发送第三数据。

    Packet transfer apparatus
    3.
    发明授权
    Packet transfer apparatus 有权
    分组传送装置

    公开(公告)号：US07876778B2

    公开(公告)日：2011-01-25

    申请号：US12073951

    申请日：2008-03-12

    申请人： Masayuki Takase ,  Hideki Endo ,  Takayuki Kanno ,  Akihiko Tanaka ,  Yoshihiro Ashi ,  Nobuyuki Yamamoto

    发明人： Masayuki Takase ,  Hideki Endo ,  Takayuki Kanno ,  Akihiko Tanaka ,  Yoshihiro Ashi ,  Nobuyuki Yamamoto

    IPC分类号： H04J3/16

    CPC分类号： H04L69/08 ,  H04L12/5601 ,  H04L45/74 ,  H04L2012/5654 ,  H04L2012/5658 ,  H04L2012/5667 ,  H04L2012/5669 ,  H04L2012/5671

    摘要： A packet transfer apparatus connects two networks of different protocols. The packet transfer apparatus, connected to a first communication network and a second communication network, performs the steps of: storing first destination correspondence information; receiving a packet of the first communication protocol; based on the first destination correspondence information, determining destination information of a packet of the second communication protocol corresponding to destination information of the received packet of the first communication protocol; generating the header of the packet of the second communication protocol, based on the determined destination information of the packet of the second communication protocol; converting the received one or more packets of the first communication protocol into one or more packets of the third communication protocol; and adding the generated header of the packet of the second communication protocol to the packets of the third communication protocol.

    摘要翻译： 分组传送装置连接不同协议的两个网络。 连接到第一通信网络和第二通信网络的分组传送装置执行以下步骤：存储第一目的地对应信息; 接收第一通信协议的分组; 基于所述第一目的地对应信息，确定与所述第一通信协议的接收分组的目的地信息相对应的所述第二通信协议的分组的目的地信息; 基于所确定的第二通信协议的分组的目的地信息，生成第二通信协议的分组的报头; 将所接收的第一通信协议的一个或多个分组转换成第三通信协议的一个或多个分组; 以及将生成的第二通信协议的分组的报头添加到第三通信协议的分组。

    Packet transfer apparatus
    4.
    发明申请
    Packet transfer apparatus 有权
    分组传送装置

    公开(公告)号：US20090016378A1

    公开(公告)日：2009-01-15

    申请号：US12073951

    申请日：2008-03-12

    申请人： Masayuki Takase ,  Hideki Endo ,  Takayuki Kanno ,  Akihiko Tanaka ,  Yoshihiro Ashi ,  Nobuyuki Yamamoto

    发明人： Masayuki Takase ,  Hideki Endo ,  Takayuki Kanno ,  Akihiko Tanaka ,  Yoshihiro Ashi ,  Nobuyuki Yamamoto

    IPC分类号： H04J3/22

    CPC分类号： H04L69/08 ,  H04L12/5601 ,  H04L45/74 ,  H04L2012/5654 ,  H04L2012/5658 ,  H04L2012/5667 ,  H04L2012/5669 ,  H04L2012/5671

    摘要： A packet transfer apparatus connects two networks of different protocols. The packet transfer apparatus, connected to a first communication network and a second communication network, performs the steps of: storing first destination correspondence information; receiving a packet of the first communication protocol; based on the first destination correspondence information, determining destination information of a packet of the second communication protocol corresponding to destination information of the received packet of the first communication protocol; generating the header of the packet of the second communication protocol, based on the determined destination information of the packet of the second communication protocol; converting the received one or more packets of the first communication protocol into one or more packets of the third communication protocol; and adding the generated header of the packet of the second communication protocol to the packets of the third communication protocol.

    摘要翻译： 分组传送装置连接不同协议的两个网络。 连接到第一通信网络和第二通信网络的分组传送装置执行以下步骤：存储第一目的地对应信息; 接收第一通信协议的分组; 基于所述第一目的地对应信息，确定与所述第一通信协议的接收分组的目的地信息相对应的所述第二通信协议的分组的目的地信息; 基于所确定的第二通信协议的分组的目的地信息，生成第二通信协议的分组的报头; 将所接收的第一通信协议的一个或多个分组转换成第三通信协议的一个或多个分组; 以及将生成的第二通信协议的分组的报头添加到第三通信协议的分组。

    Communication system having route redundancy
    7.
    发明授权
    Communication system having route redundancy 有权
    具有路由冗余的通信系统

    公开(公告)号：US08149689B2

    公开(公告)日：2012-04-03

    申请号：US12389661

    申请日：2009-02-20

    申请人： Hideki Endo ,  Masayuki Takase ,  Takayuki Kanno ,  Akihiko Tanaka

    发明人： Hideki Endo ,  Masayuki Takase ,  Takayuki Kanno ,  Akihiko Tanaka

    IPC分类号： G01R31/08 ,  G01F11/20

    CPC分类号： H04L12/66 ,  H04L45/22 ,  H04L45/28

    摘要： A packet communication system of this invention includes a user access device at a user point for providing a user with connectivity to a plurality of carriers, carrier communication networks linked to the user access device, and a carrier management network which controls and manages the user access device and communication devices. A communication device receives a control frame-inserting command from the carrier management network, and sends a control frame containing therein control frame transfer information that indicates which one of termination and send-back processing is performed at a destination device. In response to receipt of the control frame, a user access device that is the destination of this frame extracts therefrom the control frame transfer information. If this information indicates the termination then perform termination; if send-back, add thereto a header necessary for the send-back and then transfer it.

    摘要翻译： 本发明的分组通信系统包括在用户点处的用户接入设备，用于向用户提供与多个载波的连接性，链接到用户接入设备的载波通信网络以及控制和管理用户接入的载波管理网络 设备和通信设备。 通信装置从载波管理网络接收控制帧插入命令，并发送控制帧，其中包含控制帧传输信息，其指示在目的地设备执行终止和发回处理中的哪一个。 响应于控制帧的接收，作为该帧的目的地的用户接入设备从其中提取控制帧传送信息。 如果该信息表示终止，则执行终止; 如果发回，请添加发送回来所需的标题，然后传送。

    Communication device with a path protection function, and network system using the communication device
    9.
    发明授权
    Communication device with a path protection function, and network system using the communication device 有权
    具有路径保护功能的通信设备，以及使用通信设备的网络系统

    公开(公告)号：US08320238B2

    公开(公告)日：2012-11-27

    申请号：US12479201

    申请日：2009-06-05

    申请人： Masayuki Takase ,  Hideki Endo ,  Taisuke Ueta ,  Takayuki Kanno

    发明人： Masayuki Takase ,  Hideki Endo ,  Taisuke Ueta ,  Takayuki Kanno

    IPC分类号： H04L1/00 ,  H04L12/26 ,  H04L12/28 ,  H04L12/56

    CPC分类号： H04L12/1868 ,  H04L41/0668 ,  H04L45/00 ,  H04L45/16 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

    摘要： Provided is a network system including a start device and multiple end devices. A point-to-point (P-to-P) logical path is set to be used for unicast communication between the start device and each of the end devices. A first point-to-multipoint (P-to-M) logical path and a second P-to-M logical path are set to be used for multicast communication from the start device to the multiple end devices. The start device transmits data over the first P-to-M logical path. When one of the end devices detects a defect along the first P-to-M logical path, the end device that has detected the defect transmits a switch request over the P-to-P logical path set between this end device and the start device. The start device receives the switch request and transmits data over the second P-to-M logical path.

    摘要翻译： 提供了一种包括启动设备和多个终端设备的网络系统。 点对点（P到P）逻辑路径被设置为用于启动设备和每个终端设备之间的单播通信。 将第一点对多点（P到M）逻辑路径和第二P到M逻辑路径设置为用于从起始设备到多端设备的多播通信。 起始装置通过第一P-M逻辑路径发送数据。 当终端设备中的一个检测到沿着第一P-to-M逻辑路径的缺陷时，检测到缺陷的终端设备通过在该终端设备和起始设备之间设置的P-to-P逻辑路径发送切换请求 。 启动设备接收切换请求，并通过第二个P-to-M逻辑路径发送数据。

    PON system
    10.
    发明申请
    PON system 失效
    PON系统

    公开(公告)号：US20070237177A1

    公开(公告)日：2007-10-11

    申请号：US11702155

    申请日：2007-02-05

    申请人： Hideki Endo ,  Masahiko Mizutani ,  Masayuki Takase ,  Kenichi Sakamoto ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki Yamamoto

    发明人： Hideki Endo ,  Masahiko Mizutani ,  Masayuki Takase ,  Kenichi Sakamoto ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki Yamamoto

    IPC分类号： H04J3/22

    CPC分类号： H04Q11/0067 ,  H04L47/115 ,  H04L47/263 ,  H04Q11/0071 ,  H04Q2011/0064

    摘要： Disclosed herewith is a PON system and a bandwidth controlling method capable of controlling congestion with use of an upstream bandwidth in a PON section efficiently when congestion occurs in a gateway (GW) connected to an OLT. An OLT connected to a plurality of ONUs through a passive optical network (PON) and to a gateway (GW) through a communication line, when receiving a congestion occurrence notice indicating a congestion occurred output number from a GW, identifies the identifier of the ONU that is using a GW output line having the congestion output port number and shifts the bandwidth controlling of the PON section in a normal mode for allocating a bandwidth to each ONU normally to that in a bandwidth suppression mode for allocating a congestion time allowable bandwidth that is less than the current bandwidth to the ONU having the identified ONU identifier and a bandwidth to each of other ONUs according to its transmission queue length.

    摘要翻译： 这里公开了一种PON系统和带宽控制方法，其能够在连接到OLT的网关（GW）中发生拥塞时有效地控制在PON部分中使用上行带宽的拥塞。 当从GW接收到指示发生拥塞发生拥塞的拥塞发生通知时，通过无线光网络（PON）连接到多个ONU并通过通信线路连接到网关（GW），识别ONU的标识符 正在使用具有拥塞输出端口号的GW输出线，并且以正常模式移动PON部分的带宽控制，以将每个ONU的带宽正常分配给带宽抑制模式中的带宽，以分配拥塞时间允许带宽 小于根据其传输队列长度具有所识别的ONU标识符的ONU的当前带宽和对于每个其他ONU的带宽。