Duplex digital span conversion circuit arrangement
US4534027A · kind A · utility
8Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1983 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | Jun 22, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2043
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a telecommunications switching system, a thick film digital span conversion circuit is connected between a digital span and a switching network of the switching system. The circuit converts data, which is encoded for digital span use, to TTL logic coding for use by the switching network. The telecommunications switching system provides for duplicated data transmission through the switching network. Duplicated conversion circuits are employed in an active/standby configuration under CPU control. On-line replacement of a fault conversion circuit may be performed without a switching service interruption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.