Integrated switching and transmission network
US4261052A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 1979 |
| Grant date | Apr 7, 1981 |
| Priority date | — |
| Expiry date | May 1, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
PCT No. PCT/SE78/00033 Sec. 371 Date May 1, 1979 Sec. 102(e) Date May 1, 1979 PCT Filed Aug. 16, 1978 PCT Pub. No. WO 79/00138 PCT Pub. Date Mar. 22, 1979 An integrated switching and transmission network includes a digital switching system for transferring communication information without congestion. The switching system consists of one-way switch modules (SM) which are connected through two-way time division multiplex transmission links (La-Lb) to link modules (LM) each including a control unit (CU) for establishing communication paths within an associated line group (LG) as well as for controlling the switching system in cooperation with the control units of other line groups. Each of the switch modules (SM x/y) is allotted to two of the two-way links and comprises a time stage (TS) and a signalling logic circuit (SL). The input of each module is connected exclusively to one way (La,x) of one (La,x-Lb,x) of the two-way links, whereas the output of each module is connected exclusively to the other way (Lb,y) of the other two-way link (Lay-Lby). For the reliable control of the network, transmitting control units generate signals. Each signal addresses one of the signalling logic c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.