Fiber to the home office (FTTHO) architecture employing multiple wavelength bands as an overlay in an existing hybrid fiber coax (HFC) transmission system
US6385366B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2000 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Aug 31, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0081
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of operating a hybrid fiber coax transmission system to provide Fiber to the Home Office (FTTHO) functionality comprises directing, via a fiber portion of the transmission system, first wavelength division multiplexed (WDM) optical signals corresponding to a first category of subscriber service. The first wavelength division multiplexed WDM optical signals, which are within a first wavelength band, originate at a primary hub or headend and are sent to a plurality of fiber nodes where they are converted to respective electrical signals. The converted electrical signals are transmitted, via a coaxial cable portion of the transmission system, to the homes of individual subscribers. The method further comprises a step of exchanging, via a fiber portion of the transmission system, demultiplexed second WDM optical signals corresponding to fiber-to-the-home office (FTTHO) service between a headend and the home of at least one of the individual subscribers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.