Bi-directional line switched ring network system
    1.
    发明授权
    Bi-directional line switched ring network system 失效
    双向线路交换环网系统

    公开(公告)号:US06614754B1

    公开(公告)日:2003-09-02

    申请号:US09299575

    申请日:1999-04-27

    IPC分类号: G01R3108

    摘要: A bi-directional line switched ring network system including a plurality of optical fiber communications lines and a plurality of nodes connected by the plurality of optical fiber communications lines forming a closed circuit. Each of the nodes performs an addition and a drop of a path between an external communications apparatus and the optical fiber communications lines or permits the path on the optical fiber communications lines to pass through, or performs a change of a direction of the path. A control unit is located in each of the nodes to control the addition, the drop, the pass-through and the direction change of the path. When the path passes through each of the nodes, the control unit sets a time slot number of the path in being inputted into the node and a time slot number of the path in being outputted from the node independently of each other.

    摘要翻译: 一种双向线路交换环网系统,包括多条光纤通信线路和由多条光纤通信线路连接的多个节点,形成闭路电路。 每个节点执行外部通信装置和光纤通信线路之间的路径的添加和丢弃,或允许光纤通信线路上的路径通过,或者执行路径的方向的改变。 控制单元位于每个节点中以控制路径的添加,丢弃,传递和方向改变。 当路径通过每个节点时,控制单元设置输入到节点中的路径的时隙号和从节点独立地输出的路径的时隙号。

    Method and apparatus for multiplex transmission
    2.
    发明授权
    Method and apparatus for multiplex transmission 失效
    用于多路传输的方法和装置

    公开(公告)号:US07372807B2

    公开(公告)日:2008-05-13

    申请号:US10733200

    申请日:2003-12-09

    IPC分类号: H04L1/00

    摘要: In a transmission network including multiplex transmission units A, F, G, D and E, when the line breakage has occurred on the OC-12 transmission path of the direction from unit A to unit F, the unit F detects the signal coming in from the OC-12 path indicative of the line breakage. The unit F inserts the APS bytes which comes in from the unit A into the undefined area of the OC-192 transport overhead which is reserved for the through-transport of APS bytes, and transports it to the unit G. On receiving the through-transport APS bytes, the unit G inserts it intact into the defined area for the APS bytes in the OC-12 transport overhead, and sends it to the unit D. In this manner, protection switching between the units A and D is carried out.

    摘要翻译: 在包括复用传输单元A,F,G,D和E的传输网络中,当从单元A到单元F的方向的OC-12传输路径上发生线路故障时,单元F检测从 指示断线的OC-12路径。 单元F将从单元A进入的APS字节插入OC-192传输开销的未定义区域中,该空间保留用于APS字节的传输,并将其传输到单元G.在接收到通过 - 传输APS字节,单元G将其完整插入到OC-12传输开销中的APS字节的定义区域中,并将其发送到单元D.以这种方式,执行单元A和D之间的保护切换。

    Passive optical network system and optical line terminal
    6.
    发明授权
    Passive optical network system and optical line terminal 失效
    无源光网络系统和光线路终端

    公开(公告)号:US08315527B2

    公开(公告)日:2012-11-20

    申请号:US12913615

    申请日:2010-10-27

    申请人: Mitsunobu Kimura

    发明人: Mitsunobu Kimura

    IPC分类号: H04B10/00

    摘要: A transmission speed of a protection (backup) line using 1G-OLT unit and 1G-ONU unit is set to be lower than a transmission speed of a working (primary) line using 10G-OLT unit and 10G-ONU unit. A priority and band of each communication service in ONU are preset individually and separately every LLID for a working (primary) line and a protection (backup) line. When bands are allocated to the protection (backup) line, the band allocation is performed so as to secure a minimum number of bands of each communication service. A monitoring controller refers to a predetermined band information table according to an operation state of the working (primary) line or the protection (backup) line with respect to a downstream signal packet.

    摘要翻译: 使用1G-OLT单元和1G-ONU单元的保护(备用)线路的传输速度设置为低于使用10G-OLT单元和10G-ONU单元的工作(主要)线路的传输速度。 对于工作(主)线路和保护(备用)线路,ONU中每个通信服务的优先级和频带单独和单独地预先设置LLID。 当频带被分配给保护(备用)线时,执行频带分配以便确保每个通信服务的最小频带数。 监视控制器根据关于下行信号包的工作(主)线路或保护(备用)线路的操作状态来参考预定频带信息表。