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1.发明授权
公开(公告)号：US5592484A
公开(公告)日：1997-01-07
申请号：US455826
申请日：1995-05-31
IPC分类号： H04L12/43 , H04L12/433 , H04J3/12
CPC分类号： H04L12/433 , H04L12/43
摘要： A token ring interconnects a plurality of telephone stations and a ring server station. All communication is conducted via a TDM frame which includes a START field, a TOKEN field which can have any one of three states (free, busy or dedicated to communication by the ring server station), calling and called station address fields, a field for data to be sent to the ring server station and a plurality of data slots via which the telephone stations exchange data once the slots are allocated. When a connection is desired by a station it seizes a free token by making it busy, inserts pertinent field data and send the TDM frame on to the ring server station which establishes the connection via an answer frame.
摘要翻译： 令牌环互连多个电话台和环形服务器站。 所有通信都通过TDM帧进行，TDM帧包括START字段，TOKEN字段，它可以具有三种状态（空闲，忙碌或专用于由环形服务器站通信）中的任何一种，呼叫和被叫站地址字段， 要发送给环形服务器站的数据和多个数据时隙，一旦这些时隙被分配，电话台就通过该数据时隙交换数据。 当站点希望连接时，它通过使其占用来占用一个空闲令牌，插入相关的现场数据并将TDM帧发送到通过应答帧建立连接的环形服务器站。
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2.发明授权Time division multiplex frame slot assignment system and method for interconnecting telephone stations on a token ring network 失效时分复用帧时隙分配系统和方法，用于在令牌环网上互连电话台
公开(公告)号：US5751714A
公开(公告)日：1998-05-12
申请号：US727333
申请日：1996-10-08
IPC分类号： H04L12/43 , H04L12/433 , H04J3/12
CPC分类号： H04L12/433 , H04L12/43
摘要： In a token ring network a periodic recirculating frame having a plurality of information carrying slots and a header section is used for enabling a plurality of telephone stations to exchange information carrying signals. The header is provided with a token which can assume one of three states. In the first state FF, a telephone station wanting to make a call, changes the token to the second state 00 and inserts call establishment information in the header. A server station also connected in the ring detects the second state as a request to establish a connection from and to a station specified in the header. The server changes the token to the third state AA and inserts a slot assignment in the header. All stations receiving a frame with a token in the third state examine the header. The calling station implies confirmation of the requested connection and the called station is made aware of the call and the identity of the caller. When this frame returns to the server the token state is set to FF and another station on the ring can request a slot for communication with another station.
摘要翻译： 在令牌环网络中，使用具有多个信息携带时隙的周期性再循环帧和报头部分，以使多个电话台能够交换信息携带信号。 标题提供有一个可以承担三种状态之一的令牌。 在第一状态FF中，要进行呼叫的电话台将令牌改变为第二状态00，并将呼叫建立信息插入到头部中。 还连接在环中的服务器站检测到第二状态，作为与头中指定的站建立连接的请求。 服务器将令牌更改为第三个状态AA，并在标题中插入一个插槽分配。 接收具有第三状态的令牌的帧的所有站检查标题。 呼叫站意味着确认所请求的连接，并且使被叫站知道呼叫和呼叫者的身份。 当该帧返回到服务器时，令牌状态被设置为FF，并且环上的另一个站可以请求与另一站通信的时隙。
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公开(公告)号：US5333132A
公开(公告)日：1994-07-26
申请号：US925065
申请日：1992-08-05
CPC分类号： H04L25/14 , H04Q11/0428 , H04Q2213/13174 , H04Q2213/13208 , H04Q2213/13209 , H04Q2213/13213 , H04Q2213/1332 , H04Q2213/13322 , H04Q2213/13337 , H04Q2213/1336
摘要： An apparatus for connecting a data communication equipment, such as a data terminating equipment (DTE) to an ISDN digital communication network providing a first 64 kbps and a second 64 kbps B digital communication channel which involve different transmission delays. The apparatus includes a transmit part with a separation for separating a unique high rate 128 kbps data flow into two distinctive 64 kbps data flows to be transmitted through both B channels. The apparatus includes a receive part (9999) including storage for storing the data received from digital network, measurement and comparison circuits for measuring the difference between the two transmission delays, address generators for addressing the storage in order to extract the data received through both digital channels, control circuits responsive to the measure and comparison for controlling the address generators in order to provide a 128 kbps which is not affected by the difference of transmission delays introduced by both digital channels. The invention is particularly well suited for transmitting simultaneously multi-media data, i.e. voice, video and data.
摘要翻译： 一种用于将诸如数据终端设备（DTE）的数据通信设备连接到提供第一64kbps的ISDN数字通信网络和涉及不同传输延迟的第二64kbps B数字通信信道的装置。 该装置包括具有用于将唯一的高速率128kbps数据流分离成两个不同的64kbps数据流的分离的发射部分，以通过两个B信道传输。 该装置包括：接收部分（9999），包括用于存储从数字网络接收的数据的存储器，用于测量两个传输延迟之间的差异的测量和比较电路，用于寻址存储器的地址发生器，以便提取通过数字网络接收的数据 通道，控制电路响应测量和比较来控制地址发生器，以提供不受两个数字通道引入的传输延迟差异的128kbps。 本发明特别适用于同时传输多媒体数据，即语音，视频和数据。
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