Line fault discriminator
US4605827A · kind A · utility
4Cited by
7References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1981 |
| Grant date | Aug 12, 1986 |
| Priority date | — |
| Expiry date | Aug 24, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/301
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An auxiliary test system for use with a long transmission line such as one having a telephone at an end thereof whereby from a remote central test station a line may be tested for a short between wires, an open, an abnormal load condition or reversed connections and the relative location of such a fault condition determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.