Method and system for fast channel change in a DOCSIS set top gateway device
US7724647B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2006 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | May 19, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/42676
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A DOCSIS set-top gateway device uses multiple embedded cable modems so that one eCM can remained tuned to a frequency being used for a current two-way data session and another eCM can be used to tune to a different frequency. The other eCM that tunes to a different frequency is disabled from operating in the upstream direction to avoid conflict with the two-way eCM in communicating with a CMTS.The eCMs in the DSG are controlled by a client controller that interfaces applications local to the DSG to a central device, such as a CMTS. A message may be sent to a client application requesting content on a traffic flow using a different frequency than the two-way capable sCM. The client controller instructs the upstream-disabled eCM to tune to the different frequency, meanwhile the two-way eCM stays tuned to the current frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.