Ingress noise localization in a cable network
US8724681B2 · kind B2 · utility
2Cited by
24References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Jun 27, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2203/5495
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Ingress noise labeling tags are coupled into the signal path at various nodes of a cable network. The tags imprint a unique electric signature into a local ingress noise, making the noise identifiable at the headend of the network. In one embodiment, tags do not require external control signals to operate, the electrical response of the tags being determined by present and/or past magnitudes of the return path signal. Such tags can be made entirely passive, not requiring a control signal or an external source of electrical power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.