Method and system for testing subscriber circuits and wiring in a cable communication system
US5917885A · kind A · utility
4Cited by
4References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Mar 31, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13332
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A line interface circuit (120) receives an audio signal from a signal generator (132). A reflected signal is produced at the output port (216) of a SLIC (210). The reflected signal is combined with the received audio signal to produce a combined audio signal. The combined audio signal is measured to determine if a fault exists in the subscriber loop (130).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.