Optical network system and method for supporting upstream signals propagated according to a cable modem protocol
US7583897B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2006 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Apr 22, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/64707
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A modification to a cable modem termination system (CMTS) can include instructing the CMTS to ignore or skip steps of its timing algorithm so that upstream cable modem signals are controlled only by the upstream protocol of the optical network system. According to another exemplary aspect, a time stamp can be added to the upstream cable modem signals so that the CTMS timing scheme can be used. This time stamp can be used in the data service hub to adjust for the delays that occur while the upstream cable modem signals are sent across the optical network. Another adjustment of the CMTS timing scheme can include using less than a total number of miniature time slots for upstream cable modem transmissions. According to another exemplary aspect, a cable modem termination system can be positioned within a laser transceiver node or a subscriber optical interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.