Monitoring apparatus for monitoring the operating condition of transmission facilities of communications transmission technology
US4821267A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Apr 8, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/46
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Monitoring apparatus is disclosed for monitoring the operating condition of transmission facilities of communications transmission technology, whereby signal collectors (stations) of a signal collecting device collect trouble reports acquired in monitoring the transmission. The monitoring apparatus should collect trouble reports in as economical a manner as possible and should keep further criteria for the quality of the monitored transmission devices ready for interrogation, as needed. This is achieved by a monitoring apparatus having an evalution and memory device which periodically registers measured values. The measuring device can be advantageously employed for monitoring line terminal equipment in PCM transmission facilities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.