-
公开(公告)号：USRE34896E
公开(公告)日：1995-04-04
申请号：US52189
申请日：1991-05-29
CPC分类号： H04L12/525 , G06F13/4022
摘要： A multiplex interface for interconnecting the line scanning means (1) of a communication controller to user lines via transmit and receive synchronous multiplex links. Both data and control bits are exchanged in synchronous frames wherein at least two slots are assigned to each user line, the structure of the two slots is identical for all types of user lines and includes an n-bit data slot having a variable number x of valid bits depending upon the line speed of the user line assigned to the data slot and indicated by a variable delimiter pattern comprising a first delimiting bit set at a first binary value (1) adjacent to the data bits and (n--x--1) bits set at the second binary value (0) adjacent to said first delimiting bit, and an n-bit control slot having a first bit used as a global validation bit in case the data slot comprises n valid bits (x.dbd.n), this bit being set at the first binary value (1) when the data slot comprises n valid bits and at the second binary value (0) if it comprises less than n valid bits, and the n--following bits are used for exchanging control information.
摘要翻译： 一种多路复用接口，用于经由发送和接收同步多路复用链路将通信控制器的线路扫描装置（1）与用户线互连。 在同步帧中交换数据和控制位，其中至少两个时隙被分配给每个用户线，两个时隙的结构对于所有类型的用户线是相同的，并且包括具有可变数目x的n位数据时隙 有效位取决于分配给数据时隙的用户行的线速度，并且由可变分隔符模式指示，该可变分隔符模式包括在与数据位相邻的第一二进制值（1）和（nx-1）位设置下设置的第一定界位 在与所述第一定界位相邻的第二二进制值（0）处，以及在数据时隙包括n个有效位（x = n）的情况下具有用作全局验证位的第一位的n位控制时隙，该位为 如果数据时隙包括n个有效位，并且如果其包括小于n个有效位，则设置在第二二进制值（1）处，并且在第二个二进制值（0）处，并且将n个后续位用于交换控制信息。
-
2.发明授权
公开(公告)号：US4779269A
公开(公告)日：1988-10-18
申请号：US29937
申请日：1987-03-24
CPC分类号： H04M11/068
摘要： Method for transporting asynchronous data and synchronous non coded information NCI bits on a common channel operating at (n+1)/T bits per second, in slot of duration T containing n+1 bits, the data and NCI portions of the bit stream to be transported being delimited by a flag having a specific pattern which cannot be simulated by the data bits. During the periods where there is an NCI activity, the first n bits of the slot are used for transporting NCI bits and the last bit is used for transporting an additional data bit, if the said first n bits are different from the flag pattern and said last bit is set to a first binary value (0) if said first n bits are similar to the flag pattern. During the periods where there is no NCI activity, data bits are sent in at least one slot delimited by two slots, the first n bits of which are set to the flag pattern and the last bit of which is set to the second binary value (1). A transmitting device and a corresponding receiving device are implemented for generating the bit stream built using the subject method on a communication channel and receiving the so-built bit stream.
-
公开(公告)号：US4760573A
公开(公告)日：1988-07-26
申请号：US930164
申请日：1986-11-13
CPC分类号： H04L12/525 , G06F13/4022
摘要： A multiplex interface for interconnecting the line scanning means (1) of a communication controller to user lines via transmit and receive synchronous multiplex links. Both data and control bits are exchanged in synchronous frames wherein at least two slots are assigned to each user line, the structure of the two slots is identical for all types of user lines and includes an n-bit data slot having a variable number x of valid bits depending upon the line speed of the user line assigned to the data slot and indicated by a variable delimiter pattern comprising a first delimiting bit set at a first binary value (1) adjacent to the data bits and (n-x-1) bits set at the second binary value (0) adjacent to said first delimiting bit, and an n-bit control slot having a first bit used as a global validation bit in case the data slot comprises n valid bits (x=n), this bit being set at the first binary value (1) when the data slot comprises n valid bits and at the second binary value (0) if it comprises less than n valid bits, and the n-1 following bits are used for exchanging control information.
摘要翻译： 一种多路复用接口，用于经由发送和接收同步多路复用链路将通信控制器的线路扫描装置（1）与用户线互连。 在同步帧中交换数据和控制位，其中至少两个时隙被分配给每个用户线，两个时隙的结构对于所有类型的用户线是相同的，并且包括具有可变数目x的n位数据时隙 有效位取决于分配给数据时隙的用户行的线速度，并且由可变分隔符模式指示，该可变分隔符模式包括在与数据位相邻的第一二进制值（1）和（nx-1）位设置下设置的第一定界位 在与所述第一定界位相邻的第二二进制值（0）处，以及在数据时隙包括n个有效位（x = n）的情况下具有用作全局验证位的第一位的n位控制时隙，该位为 当数据时隙包括n个有效位并且如果其包括小于n个有效位，则设置在第二个二进制值（0），并且n-1个后续位用于交换控制信息。
-
-
搜索结果
3 条记录 (耗时 0.012 秒)
