公开(公告)号：US3754103A

公开(公告)日：1973-08-21

申请号：US3754103D

申请日：1972-05-16

Applicant: REVEL M

Inventor： REVEL M

IPC: H04Q3/545 ,  H04J3/00

CPC classification number: H04Q3/54591

Abstract: Device for randomly scanning trunks in time division switching systems. The trunks form a group which is divided into trunk beams or groups serving particular destinations and they are given successive addresses throughout the group. Each beam is defined by the address of its first trunk and the address of its last trunk. The scanning device cyclically supplies trunk addresses derived from one another by an address jump or increment. A trunk finder is controlled by the scanning device when the supplied address is comprised in the interval between the first and last addresses of a selected beam and remains inoperative when the supplied address is outside this interval. The number forming the address increment is a prime number with respect to the total number of trunks.

Abstract translation: 在时分切换系统中随机扫描中继线的装置。 中继线组成一组，分为中继线束或服务于特定目的地的组，并且它们在整个组中被赋予连续的地址。 每个波束由其第一个中继线的地址和其最后一个中继线的地址定义。 扫描设备循环地提供通过地址跳转或增量彼此导出的中继线地址。 当所提供的地址被包含在所选波束的第一和最后地址之间的间隔中时，由取景器控制中继取景器，并且当提供的地址在该间隔之外时保持不起作用。 形成地址增量的数字是相对于总数的素数。

公开(公告)号：US3830980A

公开(公告)日：1974-08-20

申请号：US34585373

申请日：1973-03-29

Applicant: PERON R ,  REVEL M

Inventor： PERON R ,  REVEL M

IPC: H04J3/06 ,  H04J3/07

CPC classification number: H04J3/07 ,  H04J3/06

Abstract: A switchable transmission system operating by time-sharing for data carrying digital information, comprises a distant exchange and a local exchange, whereof the timers are not strictly synchronous, and means of correcting the relative drift of these timers. The system employs means for correcting the repetitions or omissions of synchronization words. Means are incorporated in the distant exchange for the transmission of blank words on each transmission line between data-carrying words. The local exchange comprises three shift registers grouped in cascade and chronologically staggered with respect to each other, means for scanning words carrying digital information and for selectively connecting these scanning means to the said registers. The connecting means are controlled by repetitions or omissions of synchronization words, and by the reception of the blank words, in such manner as to make use, as the case may be, of the first or second registers or of the third and first registers, depending on the kind of synchronization error observed.

Abstract translation: 通过用于承载数字信息的数据的分时工作的可切换传输系统包括远程交换和本地交换机，其定时器不是严格同步的，以及校正这些定时器的相对漂移的装置。 该系统采用用于校正同步字的重复或遗漏的装置。 手段被并入遥远的交换中，用于在数据携带单词之间的每条传输线上传输空白字。 本地交换机包括三个移位寄存器，它们以级联方式并且按时间顺序相互交错排列，用于扫描携带数字信息的单词并有选择地将这些扫描装置连接到所述寄存器的装置。 连接装置通过对同步字的重复或省略进行控制，并且通过接收空白字，以使得可以使用第一或第二寄存器或第三和第一寄存器的情况， 取决于所观察到的同步误差的种类。