公开(公告)号：US06628650B1

公开(公告)日：2003-09-30

申请号：US09363649

申请日：1999-07-30

申请人： Tadao Saito ,  Hitoshi Aida ,  Terumasa Aoki ,  Soichiro Hidaka ,  Udomkiat Bunworasate

发明人： Tadao Saito ,  Hitoshi Aida ,  Terumasa Aoki ,  Soichiro Hidaka ,  Udomkiat Bunworasate

IPC分类号： H04L1250

CPC分类号： H04L12/5601 ,  H04L49/106 ,  H04L2012/5652 ,  H04L2012/5675 ,  H04L2012/5679

摘要： There is provided a variable rate TDM switching system comprising steps of: arranging a plurality of incoming lines and a plurality of sending lines in lattice form; providing time-division gates at cross-points of the incoming lines and the sending lines; connecting time-division temporal switches having a function of transposing the order of time slots in input TDM frames to forward stage of respective incoming lines of the time-division space switches for performing the switching between the incoming lines and the sending lines with time slot unit while holding the multiplexing, by switching these time-division gates; connecting a scheduler for concentratedly controlling the time-division gates and the time-division temporal switches to these gates and time switches; transmitting the headers of the TDM frames to the scheduler in case of inputting the header of TDM frame, and deciding the temporal switching schedule by the scheduler as to the transposition of the order of time slots in the time-division temporal switch, so as to disperse time slots of the same destination temporally; deciding the spatial switching schedule as to the on off of the time-division gates in the time-division temporal switches so as to appear only one time slot of the destination on the same sending line at the same timing; inputting the TDM frames into the time-division temporal switches with temporal switching by the time-division temporal switch in accordance with the temporal switching schedule; and switching respective time slots into the sending lines of respective destinations.

摘要翻译： 提供了一种可变速率TDM交换系统，包括以下步骤：以格子形式布置多条输入线和多条发送线; 在输入线和发送线的交叉点提供时分门; 连接时分时间交换机，其具有将输入TDM帧中的时隙顺序转换到时分空间交换机的各个输入线路的前进阶段的功能，用于执行时隙单元的输入线路和发送线路之间的切换 同时保持复用，通过切换这些时分门; 连接用于集中控制时分门和时分时间切换到这些门和时间开关的调度器; 在输入TDM帧的报头的情况下将TDM帧的报头发送到调度器，并且通过调度器确定时分时间切换中时隙顺序的转置的时间切换调度，以便 暂时分散同一目的地的时隙; 确定时分时间切换中的时分门的开关的空间切换调度，以便在相同定时在同一发送线上仅出现目的地的一个时隙; 通过根据时间切换时间表的时分时间切换，将TDM帧输入到具有时分切换的时分时间切换; 并将各个时隙切换到各个目的地的发送线路。

公开(公告)号：US06683872B1

公开(公告)日：2004-01-27

申请号：US09363648

申请日：1999-07-30

申请人： Tadao Saito ,  Hitoshi Aida ,  Terumasa Aoki ,  Udomkiat Bunworasate

发明人： Tadao Saito ,  Hitoshi Aida ,  Terumasa Aoki ,  Udomkiat Bunworasate

IPC分类号： H04L1250

CPC分类号： H04L49/1576 ,  H04L12/5601 ,  H04L49/309 ,  H04L2012/5664 ,  H04L2012/5679 ,  H04Q11/04 ,  H04Q2213/13076 ,  H04Q2213/13103 ,  H04Q2213/13174 ,  H04Q2213/13216 ,  H04Q2213/1329 ,  H04Q2213/13292 ,  H04Q2213/13297 ,  H04Q2213/13299

摘要： There is provided a variable rate digital switching system comprising steps of: arranging a plurality of incoming TDM buses and a plurality of sending TDM buses in lattice form; providing cross-point buffers at cross-points of the incoming buses and the sending buses; connecting the cross-point buffers belonging to respective sending TDM buses to respective scheduler; connecting respective contents analyzer to respective scheduler; checking frame headers of input TDM frames by respective cross-point buffers, thereby buffering only data of time slot of destined and belonged sending bus and transmitting contents of the frame header to the contents analyzer; checking the frame header by the contents analyzer, thereby deciding the contents of data stored in the respective cross-point buffers on the own-belonged sending TDM bus, and informing them to the scheduler; performing the scheduling by the scheduler as for how time slots in the sending TDM frame is allocated in respective cross-point buffers according to the contents of the frame header and an amount of data stored in respective cross-point buffer; and inputting in turn the buffered data in the own-allocated time slots of the sending TDM frame according to the scheduling by respective cross-point buffer, and outputting them from the sending TDM bus.

摘要翻译： 提供了一种可变速率数字交换系统，包括以下步骤：以格子形式布置多条入站TDM总线和多条发送TDM总线; 在输入总线和发送总线的交叉点提供交叉点缓冲器; 将属于相应发送TDM总线的交叉点缓冲器连接到相应的调度器; 将各内容分析器连接到相应的调度器; 通过相应的交叉点缓冲器检查输入TDM帧的帧头，从而仅缓存目的地和属于发送总线的时隙的数据，并将帧头的内容发送到内容分析器; 通过内容分析器检查帧头，从而确定存储在自身属于发送TDM总线上的各个交叉点缓冲器中的数据的内容，并将其通知给调度器; 根据帧头的内容和存储在各个交叉点缓冲器中的数据量，执行调度器对发送TDM帧中的时隙如何分配在各个交叉点缓冲器中的调度; 并根据各个交叉点缓冲区的调度依次输入发送TDM帧的自己分配的时隙中的缓冲数据，并从发送TDM总线输出缓冲数据。