公开(公告)号：US20070025734A1

公开(公告)日：2007-02-01

申请号：US11493993

申请日：2006-07-27

申请人： Sadaichirou Oogushi ,  Masashi Tanaka

发明人： Sadaichirou Oogushi ,  Masashi Tanaka

IPC分类号： H04J14/00

CPC分类号： H04J14/02

摘要： A PON (Passive Optical Network) system, which is installed in an access network for connecting a user terminal to a network and can improve the utilization efficiency of the network, is provided. The PON system comprises an OLT (Optical Line Terminal) and at least one ONU (Optical Network Unit), and the OLT connects with the network and the ONU accommodates a user terminal and connected to the OLT via an optical fiber. A logical link generation or deletion condition table and a logical link identifier management table are provided for allocating logical links to be used between the OLT and the ONU. The logical link generation or deletion condition table defines generation or deletion conditions of logical link depending on the traffic (or service) class indicated by contents of a packet passing through the PON system. The logical link identifier management table contains logical link information to be allocated, and a content of this table is added or deleted by the control with referring to the logical link generation or deletion condition table. Whenever the packet is received, the PON system peeps in the contents of the packet, and allocates an appropriate logical link in accordance with the contents.

摘要翻译： 提供了一种安装在用于将用户终端连接到网络的接入网络中并且可以提高网络的利用效率的PON（被动光网络）系统。 PON系统包括OLT（Optical Line Terminal，光线路终端）和至少一个ONU（Optical Network Unit），OLT与网络连接，ONU容纳用户终端并经由光纤连接到OLT。 提供逻辑链路生成或删除条件表和逻辑链路标识符管理表，用于分配在OLT与ONU之间使用的逻辑链路。 逻辑链路生成或删除条件表根据通过PON系统的分组的内容指示的流量（或服务）类定义逻辑链路的生成或删除条件。 逻辑链路标识符管理表包含要分配的逻辑链路信息，并且通过参考逻辑链路生成或删除条件表，通过控制来添加或删除该表的内容。 无论何时接收到分组，PON系统都会窥视分组的内容，并根据内容分配适当的逻辑链路。

公开(公告)号：US20130114962A1

公开(公告)日：2013-05-09

申请号：US13811001

申请日：2011-06-10

申请人： Daisuke Oka ,  Sadaichirou Oogushi ,  Taisuke Goto

发明人： Daisuke Oka ,  Sadaichirou Oogushi ,  Taisuke Goto

IPC分类号： H04J14/00

CPC分类号： H04J14/00 ,  H04L7/042 ,  H04Q11/0066 ,  H04Q11/0067

摘要： The communication device is connected with a plurality of user-side devices via a splitter. The communication device includes a matching means for performing matching to determine whether each of a burst delimiter, positioned at a start position of frame data which is a synchronization target in a burst optical signal transmitted from each of the user-side devices, and sync pattern data, positioned from the beginning of the burst optical signal to the burst delimiter in the burst optical signal, matches a predetermined pattern. The communication device also includes a synchronization means for, if matching of the sync pattern data and matching of the burst delimiter by the matching means succeeded, performing synchronization of the frame data on the basis of the position of the burst delimiter in the burst optical signal. The matching means performs matching of the burst delimiter after successful matching of the sync pattern data.

摘要翻译： 通信设备经由分离器与多个用户侧设备连接。 通信装置包括：匹配装置，用于执行匹配，以确定位于作为从每个用户侧装置发送的突发光信号中的作为同步目标的帧数据的起始位置的突发定界符，以及同步模式 从突发光信号的开始位置到突发光信号中的突发定界符的数据匹配预定的模式。 通信设备还包括一个同步装置，用于如果同步码型数据的匹配和匹配装置的脉冲串定界符的匹配成功，则根据突发光信号中的脉冲串定界符的位置执行帧数据的同步 。 匹配装置在同步模式数据成功匹配之后执行脉冲串定界符的匹配。

公开(公告)号：US20080095093A1

公开(公告)日：2008-04-24

申请号：US11907713

申请日：2007-10-16

申请人： Sadaichirou Oogushi ,  Sou Satou

发明人： Sadaichirou Oogushi ,  Sou Satou

IPC分类号： H04L12/56

CPC分类号： H04L12/185 ,  H04L12/4641 ,  H04L29/1233 ,  H04L61/25

摘要： The object of the present invention is to provide an IP multicast service system which can design an independent multicast group system in each network on the center side and the subscriber-side. In an IP multicast service system according to the present invention including: a center-side network configured by a plurality of multicast servers; and a subscriber-side network configured by a plurality of IP-STBs (Internet Protocol-Set Top Boxes) for receiving a multicast packet transmitted from the multicast servers and reproducing the multicast packet as an image, a group design on the basis of an independent group address system on the center-side network and on the subscriber-side network can be made by converting a group address of the multicast packet transmitted and received between the center-side network and the subscriber-side network.

摘要翻译： 本发明的目的是提供一种可以在中心侧和用户侧的每个网络中设计独立的组播组系统的IP组播服务系统。 在根据本发明的IP组播业务系统中，包括：由多个组播服务器配置的中心侧网络; 以及由多个IP-STB（因特网协议机顶盒）配置的用户侧网络，用于接收从组播服务器发送的多播分组，并将多播分组再现为图像，基于独立的组播设计 中心侧网络和用户侧网络上的组地址系统可以通过转换在中心侧网络和用户侧网络之间发送和接收的组播分组的组地址来进行。