Line condition reporting system
US4581493A · kind A · utility
20Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1983 |
| Grant date | Apr 8, 1986 |
| Priority date | — |
| Expiry date | Dec 7, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An improved testing and reporting system for individual telephone subscriber circuits providing improved fault location technology together with major reduction in subscriber loop maintenance and repair operating costs. Provision is made for the testing of lines too remote for direct testing by resort to distally located test units controlled from a central office.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.