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2. 发明授权

US5436889A System for multiplexed communication between exchanges 失效
标题翻译：交换机之间进行多路复用通信的系统
公开(公告)号：US5436889A
公开(公告)日：1995-07-25
申请号：US5176
申请日：1993-01-15
申请人： Teruyuki Matsumoto , Kansuke Kuroyanagi , Morihiko Kurata , Akihiro Kamiya
发明人： Teruyuki Matsumoto , Kansuke Kuroyanagi , Morihiko Kurata , Akihiro Kamiya
IPC分类号： H04M15/00 , H04J3/12 , H04J3/22 , H04M7/00 , H04Q3/58 , H04Q3/60 , H04Q11/04 , H04L12/00 , H04B1/16 , H04J15/00
CPC分类号： H04J3/12 , H04J3/22 , H04Q11/0428 , H04Q3/602 , H04Q2213/13034 , H04Q2213/1307 , H04Q2213/13174 , H04Q2213/13209 , H04Q2213/13213 , H04Q2213/1322 , H04Q2213/13367 , H04Q2213/13396
摘要： A multiplexed communication system for automatically setting up a multiplexed call circuit between exchanges upon occurrence of a call only when the multiplexed call circuit is required while otherwise releasing the multiplexed call circuit. The multiplexed communication system includes a plurality of exchanges, each of which includes multiplexing/demultiplexing apparatus for compressing and multiplexing data inputted from first input/output to thereby output the compressed and multiplexed data to second input/output ports and for demultiplexing and expanding data inputted from the second input/output to thereby output the demultiplexed and expanded data to the first input/output port, control information messaging apparatus for messaging control information, first detection apparatus for detecting occurrence of a compressible call, and second detection apparatus for detecting that all the calls connected to the first input/output ports have been released. Upon detection of the compressible call by the first detection apparatus, a circuit is set up between the exchanges through the multiplexing/demultiplexing apparatus while the control information is transferred between the exchanges through the call control information messaging means, to thereby connect the call to the first input/output ports between the exchanges. When it is detected that all the calls connected to the first input/output ports have been released, the circuit between the exchanges is released.
摘要翻译：一种复用通信系统，用于仅当需要多路复用的呼叫电路时才在呼叫发生时在交换机之间自动建立多路复用的呼叫电路，否则释放多路复用的呼叫电路。复用通信系统包括多个交换机，每个交换机包括用于压缩和复用从第一输入/输出输入的数据的多路复用/解复用装置，从而将压缩和复用的数据输出到第二输入/输出端口，并用于解复用和扩展输入的数据从第二输入/输出输出解复用和扩展的数据到第一输入/输出端口，用于消息收发控制信息的控制信息消息收发装置，用于检测可压缩呼叫发生的第一检测装置，以及用于检测所有连接到第一个输入/输出端口的呼叫已经释放。当检测到第一检测装置的可压缩呼叫时，通过复用/解复用装置在交换机之间建立电路，同时通过呼叫控制信息消息传送装置在交换机之间传送控制信息，从而将呼叫连接到交换机之间的第一个输入/输出端口。当检测到连接到第一输入/输出端口的所有呼叫已被释放时，交换机之间的电路被释放。

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