Distance to fault measurements in cable TV networks
US9838679B2 · kind B2 · utility
11Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2015 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Sep 17, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A TDR technique for performing in-service distance-to-fault measurements in cable TV networks is disclosed. Using a cable network tester configured to generate chirped probe pulses and to perform pulse-matched filtering and averaging of received echoes, network faults may be detected without interfering with the downstream reception. The probe pulse transmission may be timed to take advantage of the error correction coding in the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.