Space stage arrangement for a T-S-T digital switching system
US4520478A · kind A · utility
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6Claims
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Assignee
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Key dates
| Filing date | Jun 22, 1983 |
| Grant date | May 28, 1985 |
| Priority date | — |
| Expiry date | Jun 22, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A space stage for a T-S-T digital switching system is shown arranged to interconnect the originating time stages (OTS) and terminating time stages (TTS) of a first time group and the OTS's and TTS's of a second time group. The space stage includes four identical space stage units (SSU). The first SSU interconnects the OTS's and TTS's of the first time group and the second SSU the OTS's and TTS's of the second time group. The third SSU interconnects the OTS's of the first time group to the TTS's of the second time group and the fourth SSU interconnects the OTS's of the second time group to the TTS's of the first time group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.