A hitless path switching apparatus and method
    1.
    发明公开
    A hitless path switching apparatus and method 失效
    无路径切换装置和方法

    公开(公告)号:EP0696111A2

    公开(公告)日:1996-02-07

    申请号:EP95201966.9

    申请日:1995-07-17

    IPC分类号: H04B1/74 H04L1/22 H04Q11/04

    摘要: A hitless path switching method without a bit loss. A bit error in the same digital line signals is continuously monitored independently of a predetermined data blocks of a working path (51) and a protection path (61). If a bit error occurs in the working path and no bit error occurs in the protection path, a switching trigger is produced and the switching from the working path to the protection path is performed on the data block basis. Only correct data are transferred to downstream apparatuses. A reliable hitless switching is achieved not only in response to a failure in its own path, but also in response to a bit error. Using data blocks of one frame length with an indicator for bit error check placed at its top makes an effective switching possible.

    摘要翻译: 无丢包的无损路径切换方法。 独立于工作路径(51)和保护路径(61)的预定数据块连续地监视相同数字线路信号中的位错误。 如果在工作路径中发生位错误并且在保护路径中没有发生位错误,则产生切换触发,并且以数据块为基础执行从工作路径到保护路径的切换。 只有正确的数据传输到下游设备。 可靠的无中断切换不仅可以响应自身路径的故障,还可以响应误码。 使用一个帧长的数据块和位于其顶部的用于位错误检查的指示符可以进行有效切换。

    Channel-selection-type demultiplexing circuit
    2.
    发明公开
    Channel-selection-type demultiplexing circuit 失效
    Kanalauswahl-Demultiplexerschaltung

    公开(公告)号:EP0820164A3

    公开(公告)日:2002-12-11

    申请号:EP97401728.7

    申请日:1997-07-17

    CPC分类号: H04J3/08 H04J3/0685

    摘要: The invention has the object of offering a channel-selection-type demultiplexing circuit which is capable of interchanging the time slots of demultiplexed signals when demultiplexing ultra-high-speed multi-channel multiplexed signal stream without expanding the scale of the circuits, and does not require the scale of the circuits to be expanded even if the speed of the transmission path increases. The invention is a channel-selection-type demultiplexing circuit capable of demultiplexing signals to a desired output port during bit demultiplexing, instead of simply demultiplexing the bits as in conventional devices, which performs bit demultiplexing based on a frequency division clock after selecting the bit signals to be demultiplexed to the desired output port from the N -channel multiplexed signal stream based on channel selection information.

    Trunk transmission network
    3.
    发明公开
    Trunk transmission network 失效
    链路传输网络

    公开(公告)号:EP0844755A3

    公开(公告)日:1999-12-15

    申请号:EP97306185.6

    申请日:1997-08-14

    摘要: In a trunk transmission network for transmitting information signals between nodes (A-C) via paths, flexible path operation is achieved by setting up paths between source nodes and destination nodes after pre-classifying paths into a higher service class (Class A) in which any loss of information occurring in that path is made good, and a lower service class (Class B) which permits loss of information to occur in the path, and by arranging for each node, when it acts as a source node, to recognise the service class of the information signal it is sending to a destination node, and to select a path corresponding to that service class.

    Channel-selection-type demultiplexing circuit
    5.
    发明公开
    Channel-selection-type demultiplexing circuit 失效
    Kanalauswahl-Demultiplexerschaltung

    公开(公告)号:EP0820164A2

    公开(公告)日:1998-01-21

    申请号:EP97401728.7

    申请日:1997-07-17

    IPC分类号: H04J3/08 H04Q11/04

    CPC分类号: H04J3/08 H04J3/0685

    摘要: The invention has the object of offering a channel-selection-type demultiplexing circuit which is capable of interchanging the time slots of demultiplexed signals when demultiplexing ultra-high-speed multi-channel multiplexed signal stream without expanding the scale of the circuits, and does not require the scale of the circuits to be expanded even if the speed of the transmission path increases. The invention is a channel-selection-type demultiplexing circuit capable of demultiplexing signals to a desired output port during bit demultiplexing, instead of simply demultiplexing the bits as in conventional devices, which performs bit demultiplexing based on a frequency division clock after selecting the bit signals to be demultiplexed to the desired output port from the N -channel multiplexed signal stream based on channel selection information.

    摘要翻译: 本发明的目的是提供一种信道选择型解复用电路,其能够在不扩展电路规模的情况下在解复用超高速多信道多路复用信号流时互换解复用信号的时隙,并且不 即使传输路径的速度增加,也要求扩展电路的规模。 本发明是一种信道选择型解复用电路,其能够在比特解复用期间将信号解复用到期望的输出端口,而不是如在常规设备中简单地解复用该位,其在选择位信号之后基于分频时钟执行位解复用 基于信道选择信息从N信道复用信号流中解复用到期望的输出端口。

    Trunk transmission network
    8.
    发明公开
    Trunk transmission network 失效
    Verbindungsübertragungsnetzwerk

    公开(公告)号:EP0844755A2

    公开(公告)日:1998-05-27

    申请号:EP97306185.6

    申请日:1997-08-14

    摘要: In a trunk transmission network for transmitting information signals between nodes (A-C) via paths, flexible path operation is achieved by setting up paths between source nodes and destination nodes after pre-classifying paths into a higher service class (Class A) in which any loss of information occurring in that path is made good, and a lower service class (Class B) which permits loss of information to occur in the path, and by arranging for each node, when it acts as a source node, to recognise the service class of the information signal it is sending to a destination node, and to select a path corresponding to that service class.

    摘要翻译: 在用于经由路径在节点(AC)之间传输信息信号的中继传输网络中,通过在将路径预先分类为更高级服务等级(A类)之后,通过在源节点和目的地节点之间建立路径来实现灵活路径操作,其中任何损失 在该路径中发生的信息是良好的,以及允许在路径中发生信息丢失的较低服务等级(B类),并且当它用作源节点时,为每个节点排列以识别服务类 将其发送到目的地节点的信息信号,并选择与该服务类相对应的路径。