公开(公告)号：US3725590A

公开(公告)日：1973-04-03

申请号：US3725590D

申请日：1971-09-01

Applicant: INT STANDARD ELECTRIC CORP

Inventor： VERSTEGEN W

IPC: H04J3/06 ,  H04Q11/04 ,  H04J

CPC classification number: H04Q11/04 ,  H04J3/0629

Abstract: A TDM switching system is disclosed which permits PCM transmission between exchanges. Both directions of transmission are regulated at the clock rate of one exchange. Using a particular form of control of one input stage, it is possible to eliminate the need for buffer storage formerly used to compensate for frequency and phase variations.

Abstract translation: 公开了允许交换机之间的PCM传输的TDM交换系统。 传输方向以一个交换机的时钟速率进行调整。 使用一个输入级的特定形式的控制，可以消除以前用于补偿频率和相位变化的缓冲存储器的需要。

公开(公告)号：US3752931A

公开(公告)日：1973-08-14

申请号：US3752931D

申请日：1972-01-19

Applicant: INT STANDARD ELECTRIC CORP

Inventor： VERSTEGEN W

IPC: H04Q11/04 ,  H04J3/00

CPC classification number: H04Q11/04

Abstract: A TDM system is disclosed for use in multiplex exchanges in which trunk groups are divided into partial groups via switching devices which connect them to crosspoint groups. The switching devices are operated at the system clock rate, thereby eliminating the need for an address memory. The switchingdevices, by dividing the trunk groups into partial groups connected to various crosspoint groups enable a larger percentage of traffic to be switched within the crosspoint groups and thus reduce the need for links between crosspoint groups. Each crosspoint group is wired with the same number of partial groups, so that in case of total failure of a crosspoint group, traffic in all directions is still possible.

Abstract translation: 公开了一种用于多路交换的TDM系统，其中通过将交换设备连接到交叉点组的中继线群被分成部分组。 开关器件以系统时钟速率运行，从而不需要地址存储器。 交换设备通过将干线组划分成连接到各种交叉点组的部分组，能够在交叉点组内切换更大百分比的业务量，从而减少对交叉点组之间链路的需求。 每个交叉点组有相同数量的部分组，因此在交叉点组完全失败的情况下，所有方向的流量仍然可行。