HFC return path system using digital conversion and transport
US6323793A · kind A · utility
20Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2000 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Apr 21, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6168
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An HFC return path system uses digital conversion and transport at the fiber optic node, so as to replace analog laser technology with a high-speed baseband digital technology, thereby providing immunity from the troublesome analog laser impairments, enabling longer distances to be covered, potentially avoiding the need for hub repeater hardware required in analog systems, among other benefits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.