Hybrid fiber coaxial node
US10117006B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2010 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Mar 31, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/0071
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Digital information can be carried on the fiber leg of an access network using binary modulation. Binary modulated data received at an O/E node can then be modulated onto an analog waveform using quadrature amplitude modulation or some other technique for modulating an analog waveform and transmitted over, for example, the coaxial leg of the network. The O/E node may also receive an analog signal, over the coaxial leg, modulated to carry upstream data from subscriber devices. The O/E node may demodulate the upstream signal to recover the upstream data and forward that upstream data over the fiber leg using a binary modulated optical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.