Signal detector for telephone line repeator remote loopback system
US5726993A · kind A · utility
2Cited by
17References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1996 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Aug 19, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/408
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A loopback enabled by an instruction and address code pair transmitted with the regular data stream affords a simplified fault location scheme for a T1 repeater span. By selecting unique addresses for each repeater using a predetermined frame sequence and by testing for logic error density, erroneous enablement is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.